A Network YANG Data Model for Attachment CircuitsOrangemohamed.boucadair@orange.comJuniperrroberts@juniper.netTelefonicaoscar.gonzalezdedios@telefonica.comNokiasamier.barguil_giraldo@nokia.comHuawei Technologieslana.wubo@huawei.com
OPS
opsawgSlice ServiceL3VPNL2VPNAutomationNetwork AutomationOrchestrationservice deliveryService provisioningservice segmentationservice flexibilityservice simplificationNetwork Service3GPPNetwork SlicingThis document specifies a network model for attachment circuits (ACs). The model can be used for the provisioning of ACs prior to or during service provisioning (e.g., VPN, RFC 9543 Network Slice Service). A companion service model is specified in "YANG Data Models for Bearers and Attachment Circuits as a Service (ACaaS)" (RFC9834).The module augments the base network ('ietf-network') and the Service Attachment Point (SAP) models with the detailed information for the provisioning of ACs in Provider Edges (PEs).Status of This Memo
This is an Internet Standards Track document.
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received public review and has been approved for publication by
the Internet Engineering Steering Group (IESG). Further
information on Internet Standards is available in Section 2 of
RFC 7841.
Information about the current status of this document, any
errata, and how to provide feedback on it may be obtained at
.
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Table of Contents
. Introduction
. Conventions and Definitions
. Relationship to Other AC Data Models
. Sample Uses of the Attachment Circuit Data Models
. ACs Terminated by One or Multiple CEs
. Positioning the AC Network Model in the Overall Service Delivery Process
. Description of the Attachment Circuit YANG Module
. Overall Structure of the Module
. References
. Provisioning Profiles
. L2 Connection
. IP Connection
. Routing
. Static Routing
. BGP
. OSPF
. IS-IS
. RIP
. VRRP
. OAM
. Security
. Service
. YANG Module
. Security Considerations
. IANA Considerations
. References
. Normative References
. Informative References
. Examples
. VPLS
. Parent AC
. Full Tree
Acknowledgments
Contributors
Authors' Addresses
IntroductionConnectivity services are provided by networks to customers via
dedicated terminating points, such as Service Functions ,
Customer Edges (CEs), peer Autonomous System Border Routers (ASBRs),
data center gateways, or Internet Exchange Points.The procedure to provision a service in a service provider network may depend on the practices adopted by a service provider, including the flow put in place for the provisioning of advanced network services and how they are bound to an attachment circuit (AC). For example, the same AC may host multiple services (e.g., Layer 2 VPN (L2VPN), Layer 3 VPN (L3VPN), or RFC 9543 Network Slice Service ). In order to avoid service interference and redundant information in various locations, a service provider may expose an interface to manage ACs network-wide. Customers can then request a standalone AC to be put in place and refer to that AC when requesting services to be bound to that AC. specifies a data model for managing Attachment Circuits as a Service (ACaaS). specifies a network model for ACs ("ietf-ac-ntw"). The model can be used for the provisioning of ACs in a provider network prior to or during service provisioning. For example, specifies augmentations to the L2VPN Network Model (L2NM) and the L3VPN Network Model (L3NM) to bind LxVPNs to ACs that are provisioned using the procedure defined in this document.This document leverages and by adopting an AC provisioning structure that uses data nodes that are defined in those RFCs. Some refinements were introduced to cover not only conventional service provider networks but also specifics of other target deployments (e.g., cloud network).The AC network model is designed as augmentations of both the 'ietf-network' model and the Service Attachment Point (SAP) model . An AC can be bound to a single or multiple SAPs. Likewise, the model is designed to accommodate deployments where a SAP can be bound to one or multiple ACs (e.g., a Parent AC and its Child ACs).Attachment Circuits Examples
.--.
|CE6|
'-+'
ac | .--. .--.
| |CE5+------+------+CE2|
.-----+-----. '--' | '--'
| | |ac
| | |
.+. .+. .+.
.-+sap+-------+sap+-. .-+sap+-------------.
| '-' '-' | | '-' |
| PE1 | | PE2 |
.--. .+. | | |
|CE1+--+sap| | | |
'--' ac '+' | | |
'-------------------' '-------------------'
.-------------------. .-------------------.
| | | .+. ac .--.
| PE3 | | PE4 |sap+--+CE7|
| | | '-' '--'
| | | |
| .-. | | .-. .-. .-. |
'-------------+sap+-' '-+sap+-+sap+-+sap+-'
'+' '+' '+' '+'
|ac | |ac |ac
.+-. | .+-. |
|CE3+-----ac-----' |CE4+---'
'--' '--'
The AC network model uses the AC common model defined in .The YANG 1.1 data model in this document conforms to the Network Management Datastore Architecture (NMDA) defined in .Some examples are provided in .Conventions and Definitions
The key words "MUST", "MUST NOT",
"REQUIRED", "SHALL", "SHALL NOT",
"SHOULD", "SHOULD NOT",
"RECOMMENDED", "NOT RECOMMENDED",
"MAY", and "OPTIONAL" in this document are to be
interpreted as described in BCP 14 when, and only when, they appear in all capitals, as
shown here.
The reader should be familiar with the terms defined in .This document uses the term "network model" as defined in .The meanings of the symbols in the YANG tree diagrams are defined in .LxSM refers to both the L2VPN Service Model (L2SM) and the L3VPN Service Model (L3SM) .LxNM refers to both the L2VPN Network Model (L2NM) and the L3VPN Network Model (L3NM) .LxVPN refers to both L2VPN and L3VPN.The following are used in the module prefixes:
ac:
Attachment circuit
ntw:
Network
sap:
Service Attachment Point
svc:
Service
In addition, this document uses the following terms:
Bearer:
A physical or logical link that connects a customer node (or site) to a provider network.A bearer can be a wireless or wired link. One or multiple technologies can be used to build a bearer. The bearer type can be specified by a customer.The operator allocates a unique bearer reference to identify a bearer within its network (e.g., customer line identifier). Such a reference can be retrieved by a customer and then used in subsequent service placement requests to unambiguously identify where a service is to be bound.The concept of a bearer can be generalized to refer to the required underlying connection for the provisioning of an AC.One or multiple ACs may be hosted over the same bearer (e.g., multiple Virtual Local Area Networks (VLANs) on the same bearer that is provided by a physical link).
Network controller:
Denotes a functional entity responsible for the management of the service provider network. One or multiple network controllers can be deployed in a service provider network.
Service orchestrator:
Refers to a functional entity that interacts with the customer of a network service.A service orchestrator is typically responsible for the ACs, the Provider Edge (PE) selection, and requesting the activation of the requested services to a network controller.A service orchestrator may interact with one or more network controllers.
Service provider network:
A network that is able to provide network services (e.g., LxVPN or RFC 9543 Network Slice Services).
Service provider:
An entity that offers network services (e.g., LxVPN or RFC 9543 Network Slice Services).
The names of data nodes are prefixed using the prefix associated with the corresponding imported YANG module as shown in :
Modules and Their Associated Prefixes
Prefix
Module
Reference
ac-common
ietf-ac-common
ac-svc
ietf-ac-svc
dot1q-types
ieee802-dot1q-types
if
ietf-interfaces
inet
ietf-inet-types
key-chain
ietf-key-chain
nacm
ietf-netconf-acm
nw
ietf-network
rt-types
ietf-routing-types
rt-pol
ietf-routing-policy
sap
ietf-sap-ntw
vpn-common
ietf-vpn-common
Relationship to Other AC Data Models depicts the relationship between the various AC data models:
"ietf-ac-common"
"ietf-bearer-svc" ()
"ietf-ac-svc" ()
"ietf-ac-ntw" ()
"ietf-ac-glue"
AC Data Models
ietf-ac-common
^ ^ ^
| | |
.----------' | '----------.
| | |
| | |
ietf-ac-svc <--- ietf-bearer-svc |
^ ^ |
| | |
| '------------------------ ietf-ac-ntw
| ^
| |
| |
'------------ ietf-ac-glue ----------'
X --> Y: X imports Y
The "ietf-ac-common" module is imported by the "ietf-bearer-svc", "ietf-ac-svc", and "ietf-ac-ntw" modules. Bearers managed using the "ietf-bearer-svc" module may be referenced by service ACs managed using the "ietf-ac-svc" module. Similarly, a bearer managed using the "ietf-bearer-svc" module may list the set of ACs that use that bearer. To facilitate correlation between an AC service request and the actual AC provisioned in the network, "ietf-ac-ntw" leverages the AC references exposed by the "ietf-ac-svc" module. Furthermore, to bind L2VPN or L3VPN services with ACs, the "ietf-ac-glue" module augments the LxSM and LxNM with AC service references exposed by the "ietf-ac-svc" module and AC network references exposed by the "ietf-ac-ntw" module.Sample Uses of the Attachment Circuit Data ModelsACs Terminated by One or Multiple CEs depicts a sample target topology that involve ACs:
ACs are terminated by a SAP at the network side. See for an example of SAPs within a PE.
A CE can be either a physical device or a logical entity. Such a logical entity is typically a software component (e.g., a virtual Service Function that is hosted within the provider's network or a third-party infrastructure). A CE is seen by the network as a peer SAP .
CEs may be either dedicated to one single connectivity service or host multiple connectivity services (e.g., CEs with roles of Service Functions ).
A network provider may bind a single AC to one or multiple peer SAPs (e.g., CE1 and CE2 are tagged as peer SAPs for the same AC). For example, and as discussed in , multiple CEs can be attached to a PE over the same AC. This scenario is typically implemented when the Layer 2 infrastructure between the CE and the network is a multipoint service.
A single CE may terminate multiple ACs, which can be associated with the same bearer or distinct bearers (e.g., CE4).
Customers may request protection schemes in which the ACs associated with their endpoints are terminated by the same PE (e.g., CE3), distinct PEs (e.g., CE4), etc. The network provider uses this request to decide where to terminate the AC in the service provider network and also whether to enable specific capabilities (e.g., Virtual Router Redundancy Protocol (VRRP)).
"ietf-ac-ntw" is a network model that is used to manage the PE side of ACs at a provider network.Examples of ACs
.--------------------.
| |
.------. | .--. (b1) .-----.
| +----. | | +---AC---+ |
| CE1 | | | |PE+---AC---+ CE3 |
'------' | .--. '--' (b2) '-----'
+---AC--+PE| Network |
.------. | '--' .--. (b3) .-----.
| | | | | +---AC---+ |
| CE2 +----' | |PE+---AC---+ CE4 |
'------' | '--' (b3) '---+-'
| .--. | |
'----------+PE+------' |
'--' |
| |
'-----------AC----------'
(bx) = bearer Id x
Positioning the AC Network Model in the Overall Service Delivery Process shows the positioning of the AC network model in the overall service delivery process. The "ietf-ac-ntw" module is a network model that augments the SAP with a comprehensive set of parameters to reflect the ACs that are in place in a network. The model also maintains the mapping with the service references that are used to expose those ACs to customers using the "ietf-ac-svc" module defined in . Whether the same naming conventions to reference an AC are used in the service and network layers is deployment-specific.An Example of the Network AC Model Usage
.-------------.
| Customer |
'------+------'
Customer Service Models |
ietf-l2vpn-svc, ietf-l3vpn-svc, | ietf-network-slice-service,
ietf-ac-svc, ietf-ac-glue, | and ietf-bearer-svc
.------+------.
| Service |
| Orchestration |
'------+------'
Network Models |
ietf-l2vpn-ntw, ietf-l3vpn-ntw, | ietf-sap-ntw, ietf-ac-glue,
and ietf-ac-ntw |
.------+------.
| Network |
| Orchestration |
'------+------'
Network Configuration Model |
.-----------+-----------.
| |
.-------+-----. .-------+-----.
| Domain | | Domain |
| Orchestration | | Orchestration |
'--+--------+-' '-------+-----'
Device | | |
Configuration | | |
Models | | |
.---+---. | |
| Config | | |
| Manager | | |
'---+---' | |
| | |
NETCONF/CLI.......................
| | |
.--------------------------------.
.---. Bearer | | Bearer .---.
| CE1+--------+ Network +--------+ CE2|
'---' | | '---'
'--------------------------------'
Site A Site B
Similar to , the "ietf-ac-ntw" module can be used for both User-to-Network Interface (UNI) and
Network-to-Network Interface (NNI). For example, all the ACs shown in have a 'role' set
to 'ietf-sap-ntw:nni'. Typically, ASBRs of each network are directly
connected to ASBRs of a neighboring network via one or multiple links (bearers). ASBRs of "Network#1" behave as a PE and treat the other adjacent ASBRs as if it were a CE.An Example of the Network AC Model Usage Between Provider Networks
.--------------------. .-------------.
| +---AC----+ |
| | | |
| +---AC----+ Network#2 |
| | | |
| Network#1 | '-------------'
| |
| | .-------------.
| | | |
| | | |
| +---AC----+ Network#3 |
| | | |
'--------------------' '-------------'
Description of the Attachment Circuit YANG ModuleThe full tree diagram of the "ietf-ac-ntw" module is provided in . Subtrees are provided in the following subsections
for the reader's convenience.Overall Structure of the ModuleThe overall tree structure of the "ietf-ac-ntw" module is shown in .Overall Tree Structure
augment /nw:networks/nw:network:
+--rw specific-provisioning-profiles
| ...
+--rw ac-profile* [name]
...
augment /nw:networks/nw:network/nw:node:
+--rw ac* [name]
+--rw name string
+--rw svc-ref? ac-svc:attachment-circuit-reference
+--rw profile* [ac-profile-ref]
| +--rw ac-profile-ref leafref
| +--rw network-ref? -> /nw:networks/network/network-id
+--rw parent-ref
| +--rw ac-ref? leafref
| +--rw node-ref? leafref
| +--rw network-ref? -> /nw:networks/network/network-id
+--ro child-ref
| +--ro ac-ref* leafref
| +--ro node-ref? leafref
| +--ro network-ref? -> /nw:networks/network/network-id
+--rw peer-sap-id* string
+--rw group* [group-id]
| +--rw group-id string
| +--rw precedence? identityref
+--rw status
| +--rw admin-status
| | +--rw status? identityref
| | +--ro last-change? yang:date-and-time
| +--ro oper-status
| +--ro status? identityref
| +--ro last-change? yang:date-and-time
+--rw description? string
+--rw l2-connection {ac-common:layer2-ac}?
| ...
+--rw ip-connection {ac-common:layer3-ac}?
| ...
+--rw routing-protocols
| ...
+--rw oam
| ...
+--rw security
| ...
+--rw service
...
augment /nw:networks/nw:network/nw:node/sap:service/sap:sap:
+--rw ac* [ac-ref]
+--rw ac-ref leafref
+--rw node-ref? leafref
+--rw network-ref? -> /nw:networks/network/network-id
A node can host one or more SAPs. Per , a SAP is an abstraction of the network
reference point (the PE side of an AC, in the context of this document) where network services can be and/or are delivered to customers. Each SAP terminates one or multiple ACs. In turn, each AC may be terminated by one or more peer SAPs ('peer-sap'). In order to expose such AC/SAP binding information, the SAP model is augmented with the required AC-related information.Unlike the AC service model , an AC is uniquely identified by a name within the scope of a node, not a network. A textual description of the AC may be provided ('description').Also, in order to ease the correlation between the AC exposed at the service layer and the AC that is actually provisioned in the network operation, a reference to the AC exposed to the customer ('svc-ref') is stored in the "ietf-ac-ntw" module.ACs that are terminated by a SAP are listed in the 'ac' container under '/nw:networks/nw:network/nw:node/sap:service/sap:sap'. A controller may indicate a filter based on the service type (e.g., Network Slice or L3VPN) to retrieve the list of available SAPs, and thus ACs, for that service.In order to factorize common data that is provisioned for a group of ACs, a set of profiles () can be defined at the network level and then called under the node level. The information contained in a profile is thus inherited, unless the corresponding data node is refined at the AC level. In such a case, the value provided at the AC level takes precedence over the global one.In contexts where the same AC is terminated by multiple peer SAPs (e.g., an AC with multiple CEs) but a subset of them have specific information, the module allows operators to:
Define a Parent AC that may list all these CEs as peer SAPs.
Create individual ACs that are bound to the Parent AC using 'parent-ref'.
Indicate for each individual AC one or a subset of the CEs as peer SAPs. All these individual ACs will inherit the properties of the Parent AC.
Whenever a Parent AC is deleted, then all Child ACs of that AC MUST be deleted. Child ACs are referenced using 'child-ref'.An AC may belong to one or multiple groups . For example, the 'group-id' is used to associate redundancy or protection constraints with ACs.The status of an AC can be tracked using 'status'. Both operational status and administrative status are maintained. A mismatch between the administrative status vs. the operational status can be used as a trigger to detect anomalies.An AC can be characterized using Layer 2 connectivity (), Layer 3 connectivity (), routing protocols (), Operations, Administration, and Maintenance (OAM) (), security (), and service () considerations. Features are used to tag conditional portions to accommodate various deployments (support of Layer 2 ACs, Layer 3 ACs, IPv4, IPv6, routing protocols, Bidirectional Forwarding Detection (BFD), etc.).ReferencesThe AC network module defines a set of groupings depicted in for referencing purposes. These references are used within or outside the AC network module. The use of such groupings is consistent with the design in .References Groupings
grouping attachment-circuit-reference:
+-- ac-ref? leafref
+-- node-ref? leafref
+-- network-ref? -> /nw:networks/network/network-id
grouping attachment-circuit-references:
+-- ac-ref* leafref
+-- node-ref? leafref
+-- network-ref? -> /nw:networks/network/network-id
grouping ac-profile-reference:
+-- ac-profile-ref? leafref
+-- network-ref? -> /nw:networks/network/network-id
grouping encryption-profile-reference:
+-- encryption-profile-ref? leafref
+-- network-ref? -> /nw:networks/network/network-id
grouping qos-profile-reference:
+-- qos-profile-ref? leafref
+-- network-ref? -> /nw:networks/network/network-id
grouping failure-detection-profile-reference:
+-- failure-detection-profile-ref? leafref
+-- network-ref? -> /nw:networks/network/network-id
grouping forwarding-profile-reference:
+-- forwarding-profile-ref? leafref
+-- network-ref? -> /nw:networks/network/network-id
grouping routing-profile-reference:
+-- routing-profile-ref? leafref
+-- network-ref? -> /nw:networks/network/network-id
The groupings shown in contain the information necessary to reference:
an AC that is terminated by a specific node in a given network,
an AC profile of a specific network (), and
specific provisioning profiles that are bound to a specific network ().
Provisioning ProfilesThe AC and specific provisioning profiles tree structure is shown in .Profiles Tree Structure
augment /nw:networks/nw:network:
+--rw specific-provisioning-profiles
| +--rw valid-provider-identifiers
| +--rw encryption-profile-identifier* [id]
| | +--rw id string
| +--rw qos-profile-identifier* [id]
| | +--rw id string
| +--rw failure-detection-profile-identifier* [id]
| | +--rw id string
| +--rw forwarding-profile-identifier* [id]
| | +--rw id string
| +--rw routing-profile-identifier* [id]
| +--rw id string
+--rw ac-profile* [name]
+--rw name string
+--rw routing-protocols
| +--rw routing-protocol* [id]
| +--rw id string
| +--rw type? identityref
| +--rw bgp {vpn-common:rtg-bgp}?
| | +--rw peer-groups
| | +--rw peer-group* [name]
| | +--rw name string
| | +--rw description? string
| | +--rw apply-policy
| | | +--rw import-policy* leafref
| | | +--rw default-import-policy?
| | | | default-policy-type
| | | +--rw export-policy* leafref
| | | +--rw default-export-policy?
| | | default-policy-type
| | +--rw local-as? inet:as-number
| | +--rw peer-as inet:as-number
| | +--rw address-family? identityref
| | +--rw role? identityref
| | +--rw multihop? uint8
| | +--rw as-override? boolean
| | +--rw allow-own-as? uint8
| | +--rw prepend-global-as? boolean
| | +--rw send-default-route? boolean
| | +--rw site-of-origin?
| | | rt-types:route-origin
| | +--rw ipv6-site-of-origin?
| | | rt-types:ipv6-route-origin
| | +--rw redistribute-connected* [address-family]
| | | +--rw address-family identityref
| | | +--rw enabled? boolean
| | +--rw bgp-max-prefix
| | | +--rw max-prefix? uint32
| | | +--rw warning-threshold? decimal64
| | | +--rw violate-action? enumeration
| | | +--rw restart-timer? uint32
| | +--rw bgp-timers
| | +--rw keepalive? uint16
| | +--rw hold-time? uint16
| +--rw ospf {vpn-common:rtg-ospf}?
| | +--rw address-family? identityref
| | +--rw area-id yang:dotted-quad
| | +--rw metric? uint16
| | +--rw max-lsa? uint32
| | +--rw passive? boolean
| +--rw isis {vpn-common:rtg-isis}?
| | +--rw address-family? identityref
| | +--rw area-address area-address
| | +--rw level? identityref
| | +--rw metric? uint32
| | +--rw passive? boolean
| +--rw rip {vpn-common:rtg-rip}?
| | +--rw address-family? identityref
| | +--rw timers
| | | +--rw update-interval? uint16
| | | +--rw invalid-interval? uint16
| | | +--rw holddown-interval? uint16
| | | +--rw flush-interval? uint16
| | +--rw default-metric? uint8
| +--rw vrrp {vpn-common:rtg-vrrp}?
| +--rw address-family? identityref
| +--rw ping-reply? boolean
+--rw oam
+--rw bfd {vpn-common:bfd}?
+--rw session-type? identityref
+--rw desired-min-tx-interval? uint32
+--rw required-min-rx-interval? uint32
+--rw local-multiplier? uint8
+--rw holdtime? uint32
Similar to and , the exact definition of the specific provisioning profiles is local to each service provider. The model only includes an identifier for these profiles in order to ease identifying and binding local policies when building an AC. As shown in , the following identifiers can be included:
'encryption-profile-identifier':
An encryption profile refers to a set of policies related to the encryption schemes and setup that can be applied on the AC. See also .
'qos-profile-identifier':
A Quality of Service (QoS) profile refers to a set of policies such as classification, marking, and actions (e.g., ). See also .
'failure-detection-profile-identifier':
A failure detection profile refers to a set of failure detection policies such as Bidirectional Forwarding Detection (BFD) policies that can be invoked when building an AC. Such a profile can be, for example, referenced in static routes () or under the OAM level (). The use of this profile is similar to the detailed examples depicted in Appendices and of .
'forwarding-profile-identifier':
A forwarding profile refers to the policies that apply to the forwarding of packets conveyed over an AC. Such policies may consist of, for example, applying Access Control Lists (ACLs) as in .
'routing-profile-identifier':
A routing profile refers to a set of routing policies that will be invoked (e.g., BGP policies) for an AC. Refer to .
The 'ac-profile' defines parameters that can be factorized among a set of ACs. Each profile is identified by a 'name' that is unique in a network. Some of the data nodes can be adjusted at the node level. These adjusted values take precedence over the values in the profile.L2 ConnectionThe 'l2-connection' container is used to manage the Layer 2 properties of an AC (mainly, the PE side of an AC). The Layer 2 connection tree structure is shown in .Layer 2 Connection Tree Structure
augment /nw:networks/nw:network/nw:node:
+--rw ac* [name]
+--rw name string
+ ...
+--rw l2-connection {ac-common:layer2-ac}?
| +--rw encapsulation
| | +--rw encap-type? identityref
| | +--rw dot1q
| | | +--rw tag-type? identityref
| | | +--rw cvlan-id? uint16
| | | +--rw tag-operations
| | | +--rw (op-choice)?
| | | | +--:(pop)
| | | | | +--rw pop? empty
| | | | +--:(push)
| | | | | +--rw push? empty
| | | | +--:(translate)
| | | | +--rw translate? empty
| | | +--rw tag-1? dot1q-types:vlanid
| | | +--rw tag-1-type?
| | | | dot1q-types:dot1q-tag-type
| | | +--rw tag-2? dot1q-types:vlanid
| | | +--rw tag-2-type?
| | | dot1q-types:dot1q-tag-type
| | +--rw priority-tagged
| | | +--rw tag-type? identityref
| | +--rw qinq
| | +--rw tag-type? identityref
| | +--rw svlan-id? uint16
| | +--rw cvlan-id? uint16
| | +--rw tag-operations
| | +--rw (op-choice)?
| | | +--:(pop)
| | | | +--rw pop? uint8
| | | +--:(push)
| | | | +--rw push? empty
| | | +--:(translate)
| | | +--rw translate? uint8
| | +--rw tag-1? dot1q-types:vlanid
| | +--rw tag-1-type?
| | | dot1q-types:dot1q-tag-type
| | +--rw tag-2? dot1q-types:vlanid
| | +--rw tag-2-type?
| | dot1q-types:dot1q-tag-type
| +--rw (l2-service)?
| | +--:(l2-tunnel-service)
| | | +--rw l2-tunnel-service
| | | +--rw type? identityref
| | | +--rw pseudowire
| | | | +--rw vcid? uint32
| | | | +--rw far-end? union
| | | +--rw vpls
| | | | +--rw vcid? uint32
| | | | +--rw far-end* union
| | | +--rw vxlan
| | | +--rw vni-id? uint32
| | | +--rw peer-mode? identityref
| | | +--rw peer-ip-address* inet:ip-address
| | +--:(l2vpn)
| | +--rw l2vpn-id? vpn-common:vpn-id
| +--rw l2-termination-point? string
| +--rw local-bridge-reference? string
| +--rw bearer-reference? string
| | {ac-common:server-assigned-reference}?
| +--rw lag-interface {vpn-common:lag-interface}?
| +--rw lag-interface-id? string
| +--rw member-link-list
| +--rw member-link* [name]
| +--rw name string
+--rw ip-connection {ac-common:layer3-ac}?
| ...
+--rw routing-protocols
| ...
+--rw oam
| ...
+--rw security
| ...
+--rw service
...
The 'encapsulation' container specifies the Layer 2 encapsulation to use (if any) and allows the configuration of the relevant tags. Also, the model supports tag manipulation operations (e.g., tag rewrite).The 'l2-tunnel-service' container is used to specify the required parameters to set a Layer 2 tunneling service (e.g., a Virtual Private LAN Service (VPLS), a Virtual eXtensible Local Area Network (VXLAN), or a pseudowire ()). 'l2vpn-id' is used to identify a L2VPN service that is associated with an Integrated Routing and Bridging (IRB) interface.Specific Layer 2 sub-interfaces may be required to be configured in some implementations/deployments. Such a Layer-2-specific interface can be included in 'l2-termination-point'.To accommodate implementations that require internal bridging, a local bridge reference can be specified in 'local-bridge-reference'. Such a reference may be a local bridge domain.A reference to the bearer used by this AC is maintained using 'bearer-reference'.IP ConnectionThis 'ip-connection' container is used to group Layer 3 connectivity information, particularly the IP addressing information, of an AC.The Layer 3 connection tree structure is shown in .IP Connection Tree Structure
augment /nw:networks/nw:network/nw:node:
+--rw ac* [name]
+--rw name string
+ ...
+--rw l2-connection {ac-common:layer2-ac}?
| ...
+--rw ip-connection {ac-common:layer3-ac}?
| +--rw l3-termination-point? string
| +--rw ipv4 {vpn-common:ipv4}?
| | +--rw local-address?
| | | inet:ipv4-address
| | +--rw prefix-length? uint8
| | +--rw address-allocation-type?
| | | identityref
| | +--rw (allocation-type)?
| | +--:(dynamic)
| | | +--rw (address-assign)?
| | | | +--:(number)
| | | | | +--rw number-of-dynamic-address? uint16
| | | | +--:(explicit)
| | | | +--rw customer-addresses
| | | | +--rw address-pool* [pool-id]
| | | | +--rw pool-id string
| | | | +--rw start-address
| | | | | inet:ipv4-address
| | | | +--rw end-address?
| | | | inet:ipv4-address
| | | +--rw (provider-dhcp)?
| | | | +--:(dhcp-service-type)
| | | | | +--rw dhcp-service-type?
| | | | | enumeration
| | | | +--:(service-type)
| | | | +--rw (service-type)?
| | | | +--:(relay)
| | | | +--rw server-ip-address*
| | | | inet:ipv4-address
| | | +--rw (dhcp-relay)?
| | | +--:(customer-dhcp-servers)
| | | +--rw customer-dhcp-servers
| | | +--rw server-ip-address*
| | | inet:ipv4-address
| | +--:(static-addresses)
| | +--rw address* [address-id]
| | +--rw address-id string
| | +--rw customer-address?
| | | inet:ipv4-address
| | +--rw failure-detection-profile-ref? leafref
| | +--rw network-ref?
| | -> /nw:networks/network/network-id
| +--rw ipv6 {vpn-common:ipv6}?
| +--rw local-address?
| | inet:ipv6-address
| +--rw prefix-length? uint8
| +--rw address-allocation-type?
| | identityref
| +--rw (allocation-type)?
| +--:(dynamic)
| | +--rw (address-assign)?
| | | +--:(number)
| | | | +--rw number-of-dynamic-address? uint16
| | | +--:(explicit)
| | | +--rw customer-addresses
| | | +--rw address-pool* [pool-id]
| | | +--rw pool-id string
| | | +--rw start-address
| | | | inet:ipv6-address
| | | +--rw end-address?
| | | inet:ipv6-address
| | +--rw (provider-dhcp)?
| | | +--:(dhcp-service-type)
| | | | +--rw dhcp-service-type?
| | | | enumeration
| | | +--:(service-type)
| | | +--rw (service-type)?
| | | +--:(relay)
| | | +--rw server-ip-address*
| | | inet:ipv6-address
| | +--rw (dhcp-relay)?
| | +--:(customer-dhcp-servers)
| | +--rw customer-dhcp-servers
| | +--rw server-ip-address*
| | inet:ipv6-address
| +--:(static-addresses)
| +--rw address* [address-id]
| +--rw address-id string
| +--rw customer-address?
| | inet:ipv6-address
| +--rw failure-detection-profile-ref? leafref
| +--rw network-ref?
| -> /nw:networks/network/network-id
+--rw routing-protocols
| ...
+--rw oam
| ...
+--rw security
| ...
+--rw service
...
A distinct Layer 3 interface other than the interface indicated under the 'l2-connection' container may be needed to terminate the Layer 3 connectivity. The identifier of such an interface is included in 'l3-termination-point'. For example, this data node can be used to carry the identifier of a bridge domain interface.This container can include IPv4, IPv6, or both if dual-stack is enabled. For both IPv4 and IPv6, the IP connection supports three IP address assignment modes for customer addresses: provider DHCP, DHCP relay, and static addressing. Note that for the IPv6 case, Stateless Address Autoconfiguration (SLAAC) can be used.For both IPv4 and IPv6, 'address-allocation-type' is used to indicate the IP address allocation mode to activate for an AC. The allocated address represents the PE interface address configuration. When 'address-allocation-type' is set to 'provider-dhcp', DHCP assignments can be made locally or by an external DHCP server. Such behavior is controlled by setting 'dhcp-service-type'.For IPv6, if 'address-allocation-type' is set to 'slaac', the Prefix Information option of Router Advertisements that will be issued for SLAAC purposes will carry the IPv6 prefix that is determined by 'local-address' and 'prefix-length'. For example, if 'local-address' is set to '2001:db8:0:1::1' and 'prefix-length' is set to '64', the IPv6 prefix that will be used is '2001:db8:0:1::/64'.In some deployment contexts (e.g., network merging), multiple IP subnets may be used in a transition period. For such deployments, multiple ACs (typically, two) with overlapping information may be maintained during a transition period. The correlation between these ACs may rely upon the same 'svc-ref'.RoutingThe overall routing subtree structure is shown in .Routing Tree Structure
module: ietf-ac-ntw
augment /nw:networks/nw:network:
+--rw ac-profile* [name]
+--rw name string
+--rw routing-protocols
| +--rw routing-protocol* [id]
| +--rw id string
| +--rw type? identityref
| +--rw bgp {vpn-common:rtg-bgp}?
| | ...
| +--rw ospf {vpn-common:rtg-ospf}?
| | ...
| +--rw isis {vpn-common:rtg-isis}?
| | ...
| +--rw rip {vpn-common:rtg-rip}?
| | ...
| +--rw vrrp {vpn-common:rtg-vrrp}?
| ...
+--rw oam
...
augment /nw:networks/nw:network/nw:node:
+--rw ac* [name]
+--rw name string
...
+--rw l2-connection {ac-common:layer2-ac}?
| ...
+--rw ip-connection {ac-common:layer3-ac}?
| ...
+--rw routing-protocols
| +--rw routing-protocol* [id]
| +--rw id string
| +--rw type? identityref
| +--rw routing-profile* [routing-profile-ref]
| | +--rw routing-profile-ref leafref
| | +--rw network-ref?
| | | -> /nw:networks/network/network-id
| | +--rw type? identityref
| +--rw static
| | ...
| +--rw bgp {vpn-common:rtg-bgp}?
| | ...
| +--rw ospf {vpn-common:rtg-ospf}?
| | ...
| +--rw isis {vpn-common:rtg-isis}?
| | ...
| +--rw rip {vpn-common:rtg-rip}?
| | ...
| +--rw vrrp {vpn-common:rtg-vrrp}?
| ...
+--rw oam
| ...
+--rw security
| ...
+--rw service
...
Multiple routing instances ('routing-protocol') can be defined, each uniquely identified
by an 'id'. Specifically, each instance is uniquely identified to accommodate scenarios
where multiple instances of the same routing protocol have to be configured on the same AC.The type of a routing instance is indicated in 'type'.
The values of this attribute are those defined in (the
'routing-protocol-type' identity). Specific data nodes are then provided
as a function of the 'type'. See more details in the following subsections.One or multiple routing profiles ('routing-profile') can be provided for
a given routing instance.Static RoutingThe static routing subtree structure is shown in .Static Routing Tree Structure
module: ietf-ac-ntw
...
augment /nw:networks/nw:network/nw:node:
+--rw ac* [name]
+--rw name string
...
+--rw l2-connection {ac-common:layer2-ac}?
| ...
+--rw ip-connection {ac-common:layer3-ac}?
| ...
+--rw routing-protocols
| +--rw routing-protocol* [id]
| +--rw id string
| +--rw type? identityref
| +--rw routing-profile* [routing-profile-ref]
| | +--rw routing-profile-ref leafref
| | +--rw network-ref?
| | | -> /nw:networks/network/network-id
| | +--rw type? identityref
| +--rw static
| | +--rw cascaded-lan-prefixes
| | +--rw ipv4-lan-prefix* [lan next-hop]
| | | {vpn-common:ipv4}?
| | | +--rw lan inet:ipv4-prefix
| | | +--rw lan-tag? string
| | | +--rw next-hop union
| | | +--rw metric? uint32
| | | +--rw bfd {vpn-common:bfd}?
| | | | +--rw enabled?
| | | | | boolean
| | | | +--rw failure-detection-profile-ref?
| | | | | leafref
| | | | +--rw network-ref?
| | | | -> /nw:networks/network/network-id
| | | +--rw preference? uint32
| | | +--rw status
| | | +--rw admin-status
| | | | +--rw status? identityref
| | | | +--ro last-change? yang:date-and-time
| | | +--ro oper-status
| | | +--ro status? identityref
| | | +--ro last-change? yang:date-and-time
| | +--rw ipv6-lan-prefix* [lan next-hop]
| | {vpn-common:ipv6}?
| | +--rw lan inet:ipv6-prefix
| | +--rw lan-tag? string
| | +--rw next-hop union
| | +--rw metric? uint32
| | +--rw bfd {vpn-common:bfd}?
| | | +--rw enabled?
| | | | boolean
| | | +--rw failure-detection-profile-ref?
| | | | leafref
| | | +--rw network-ref?
| | | -> /nw:networks/network/network-id
| | +--rw preference? uint32
| | +--rw status
| | +--rw admin-status
| | | +--rw status? identityref
| | | +--ro last-change? yang:date-and-time
| | +--ro oper-status
| | +--ro status? identityref
| | +--ro last-change? yang:date-and-time
| +--rw bgp {vpn-common:rtg-bgp}?
| | ...
| +--rw ospf {vpn-common:rtg-ospf}?
| | ...
| +--rw isis {vpn-common:rtg-isis}?
| | ...
| +--rw rip {vpn-common:rtg-rip}?
| | ...
| +--rw vrrp {vpn-common:rtg-vrrp}?
| ...
+--rw oam
| ...
+--rw security
| ...
+--rw service
...
The following data nodes can be defined for a given IP prefix:
'lan-tag':
Indicates a local tag (e.g., 'myfavorite-lan') that is used
to enforce local policies.
'next-hop':
Indicates the next hop to be used for the static route.It can be identified by an IP address, a predefined next-hop
type (e.g., 'discard' or 'local-link'), etc.
'bfd':
Indicates whether BFD is enabled or disabled for this static
route entry. A BFD profile may also be provided.
'metric':
Indicates the metric associated with the static route
entry. This metric is used when the route is exported into an
IGP.
'preference':
Indicates the preference associated with the static route entry.This preference is used to select a preferred route among routes to the same destination prefix.
'status':
Used to convey the status of a static route entry. This data node can also be used to control the (de)activation of individual static route entries.
Specifies an address or a reference to an interface to use
when establishing the BGP transport session.
'description':
Includes a description of the peer group.
'apply-policy':
Lists a set of import/export policies to apply for this group.
'local-as':
Indicates a local Autonomous System Number (ASN).
'peer-as':
Indicates the peer's ASN.
'address-family':
Indicates the address family of the peer. It can be set to
'ipv4', 'ipv6', or 'dual-stack'.This address family might be used together with the service
type that uses an AC (e.g., 'vpn-type' )
to derive the appropriate Address Family Identifiers (AFIs) /
Subsequent Address Family Identifiers (SAFIs) that will be part
of the derived device configurations (e.g., unicast IPv4 MPLS
L3VPN (AFI,SAFI = 1,128) as defined in ).
'role':
Specifies the BGP role in a session. Role values are taken
from the list defined in .
'multihop':
Indicates the number of allowed IP hops to reach a BGP peer.
'as-override':
If set, this parameter indicates whether ASN override is
enabled, i.e., replacing the ASN of the customer specified in
the AS_PATH BGP attribute with the ASN identified in the 'local-
as' attribute.
'allow-own-as':
Used in some topologies (e.g., hub-and-spoke) to allow the
provider's ASN to be included in the AS_PATH BGP attribute
received from a peer. Loops are prevented by setting
'allow-own-as' to a maximum number of the provider's ASN
occurrences. By default, this parameter is set to '0' (that is,
reject any AS_PATH attribute that includes the provider's
ASN).
'prepend-global-as':
When distinct ASNs are configured at the node and AC levels,
this parameter controls whether the ASN provided at the node
level is prepended to the AS_PATH attribute.
'send-default-route':
Controls whether default routes can be advertised to the peer.
'site-of-origin':
Meant to uniquely identify the set of routes learned from a
site via a particular AC. It is used to prevent routing loops
(). The
Site of Origin attribute is encoded as a Route Origin Extended
Community.
'ipv6-site-of-origin':
Carries an IPv6 Address Specific BGP Extended Community that
is used to indicate the Site of Origin .
It is used to prevent routing loops.
'redistribute-connected':
Controls whether the AC is advertised to other PEs.
'bgp-max-prefix':
Controls the behavior when a prefix maximum is reached.
'max-prefix':
Indicates the maximum number of BGP prefixes allowed in a
session for this group. If the limit is reached, the action
indicated in 'violate-action' will be followed.
'warning-threshold':
A warning notification is triggered when this limit is reached.
'violate-action':
Indicates which action to execute when the maximum number of
BGP prefixes is reached. Examples of such actions include
sending a warning message, discarding extra paths from the peer,
or restarting the session.
'restart-timer':
Indicates, in seconds, the time interval after which the BGP
session will be reestablished.
'bgp-timers':
Two timers can be captured in this container: (1)
'hold-time', which is the time interval that will be used for
the Hold Timer () when establishing a BGP session and (2)
'keepalive', which is the time interval for the KeepaliveTimer
between a PE and a BGP peer ().Both timers are expressed in seconds.
'bfd':
Indicates whether BFD is enabled or disabled for this
neighbor. A BFD profile to apply may also be provided.
'authentication':
The module adheres to the recommendations in , as it
allows enabling the TCP Authentication Option (TCP-AO) and accommodates the installed base that
makes use of MD5.This version of the model assumes that parameters specific to
the TCP-AO are preconfigured as part of the key chain that is
referenced in the model. No assumption is made about how such a
key chain is preconfigured. However, the structure of the key
chain should cover data nodes beyond those in , mainly SendID and RecvID ().
For each neighbor, the following data nodes are supported in addition to similar parameters that are provided for a peer group:
'remote-address':
Specifies the remote IP address of a BGP neighbor.
'peer-group':
A name of a peer group.Parameters that are provided at the 'neighbor' level take
precedence over the ones provided in the peer group.
Indicates whether IPv4, IPv6, or both address families are to
be activated.When the IPv4 or dual-stack address family is requested, it
is up to the implementation (e.g., network orchestrator) to
decide whether OSPFv2 or OSPFv3 is used to announce IPv4 routes.
'area-id':
Indicates the OSPF Area ID.
'metric':
Associates a metric with OSPF routes.
'sham-links':
Used to create OSPF sham links between two ACs sharing the
same area and having a backdoor link ( and ).
'max-lsa':
Sets the maximum number of Link State Advertisements (LSAs)
that the OSPF instance will accept.
'passive':
Controls whether an OSPF interface is passive or active.
'authentication':
Controls the authentication schemes to be enabled for the
OSPF instance. The module supports authentication options that
are common to both OSPF versions: the Authentication Trailer for
OSPFv2 and
OSPFv3 ; as such, the model does not
support .
'status':
Indicates the status of the OSPF routing instance.
Indicates whether IPv4, IPv6, or both address families are to be activated.
'area-address':
Indicates the IS-IS area address.
'level':
Indicates the IS-IS level: Level 1, Level 2, or both.
'metric':
Associates a metric with IS-IS routes.
'passive':
Controls whether an IS-IS interface is passive or active.
'authentication':
Controls the authentication schemes to be enabled for the
IS-IS instance. Both the specification of a key chain and the direct specification of key and
authentication algorithms are supported.
'status':
Indicates the status of the IS-IS routing instance.
Indicates whether IPv4, IPv6, or both address families are to
be activated. This parameter is used to determine whether RIPv2
, RIP Next Generation (RIPng) , or both are to be enabled.
'timers':
Indicates the following timers (expressed in seconds):
'update-interval':
The interval at which RIP updates are sent.
'invalid-interval':
The interval before a RIP route is declared invalid.
'holddown-interval':
The interval before better RIP routes are released.
'flush-interval':
The interval before a route is removed from the routing table.
'default-metric':
Sets the default RIP metric.
'authentication':
Controls the authentication schemes to be enabled for the RIP instance.
Indicates whether IPv4, IPv6, or both address
families are to be activated. Note that VRRP version 3
supports both IPv4 and IPv6.
'vrrp-group':
Used to identify the VRRP group.
'backup-peer':
Carries the IP address of the peer.
'virtual-ip-address':
Includes virtual IP addresses for a single VRRP group.
'priority':
Assigns the VRRP election priority for the backup virtual router.
'ping-reply':
Controls whether the VRRP speaker should reply to ping requests.
'status':
Indicates the status of the VRRP instance.
Note that no authentication data node is included for VRRP, as there
isn't any type of VRRP authentication at this time (see ).OAMThe OAM subtree structure is shown in .OAM Tree Structure
augment /nw:networks/nw:network:
+--rw ac-profile* [name]
+--rw name string
+--rw routing-protocols
| ...
+--rw oam
+--rw bfd {vpn-common:bfd}?
+--rw session-type? identityref
+--rw desired-min-tx-interval? uint32
+--rw required-min-rx-interval? uint32
+--rw local-multiplier? uint8
+--rw holdtime? uint32
augment /nw:networks/nw:network/nw:node:
+--rw ac* [name]
+--rw name string
+ ...
+--rw l2-connection {ac-common:layer2-ac}?
| ...
+--rw ip-connection {ac-common:layer3-ac}?
| ...
+--rw routing-protocols
| ...
+--rw oam
| +--rw bfd {vpn-common:bfd}?
| +--rw session* [dest-addr]
| +--rw dest-addr inet:ip-address
| +--rw source-address? union
| +--rw failure-detection-profile-ref? leafref
| +--rw network-ref?
| | -> /nw:networks/network/network-id
| +--rw session-type? identityref
| +--rw desired-min-tx-interval? uint32
| +--rw required-min-rx-interval? uint32
| +--rw local-multiplier? uint8
| +--rw holdtime? uint32
| +--rw authentication!
| | +--rw key-chain? key-chain:key-chain-ref
| | +--rw meticulous? boolean
| +--rw status
| +--rw admin-status
| | +--rw status? identityref
| | +--ro last-change? yang:date-and-time
| +--ro oper-status
| +--ro status? identityref
| +--ro last-change? yang:date-and-time
+--rw security
| ...
+--rw service
...
The following OAM data nodes can be specified for each BFD session:
'dest-addr':
Specifies the BFD peer address. This data node is mapped to 'remote-address' of the BFD container in . 'dest-address' is used here to ease the mapping with the underlying device model defined in .
'source-address':
Specifies the local IP address or interface to use for the session. This data node is mapped to 'local-address' of the BFD container in . 'source-address' is used here to ease the mapping with the underlying device model defined in .
'failure-detection-profile-ref':
Refers to a BFD profile in .
'network-ref':
Includes a network reference to uniquely identify a BFD profile.
'session-type':
Indicates which BFD flavor is used to set up the session (e.g., classic BFD , Seamless BFD ). By default, it is assumed that the BFD session will follow the behavior specified in .
'desired-min-tx-interval':
The minimum interval, in microseconds, to use when transmitting BFD Control packets, less any jitter applied.
'required-min-rx-interval':
The minimum interval, in microseconds, between received BFD Control packets, less any jitter applied by the sender.
'local-multiplier':
The negotiated transmit interval, multiplied by this value, provides the detection time for the peer.
'holdtime':
Used to indicate the expected BFD holddown time, in milliseconds.
'authentication':
Includes the required information to enable the BFD authentication modes discussed in . In particular, 'meticulous' controls the activation of meticulous mode as discussed in Sections and of .
'status':
Indicates the status of BFD.
SecurityThe security subtree structure is shown in . The 'security' container specifies the encryption to be applied to traffic for a given AC. The model can be used to directly control the encryption to be applied (e.g., Layer 2 or Layer 3 encryption) or invoke a local encryption profile.Security Tree Structure
augment /nw:networks/nw:network/nw:node:
+--rw ac* [name]
+--rw name string
+ ...
+--rw l2-connection {ac-common:layer2-ac}?
| ...
+--rw ip-connection {ac-common:layer3-ac}?
| ...
+--rw routing-protocols
| ...
+--rw oam
| ...
+--rw security
| +--rw encryption {vpn-common:encryption}?
| | +--rw enabled? boolean
| | +--rw layer? enumeration
| +--rw encryption-profile
| +--rw (profile)?
| +--:(provider-profile)
| | +--rw encryption-profile-ref? leafref
| | +--rw network-ref?
| | -> /nw:networks/network/network-id
| +--:(customer-profile)
| +--rw customer-key-chain? key-chain:key-chain-ref
+--rw service
...
ServiceThe service subtree structure is shown in .Service Tree Structure
augment /nw:networks/nw:network/nw:node:
+--rw ac* [name]
+--rw name string
+ ...
+--rw l2-connection {ac-common:layer2-ac}?
| ...
+--rw ip-connection {ac-common:layer3-ac}?
| ...
+--rw routing-protocols
| ...
+--rw oam
| ...
+--rw security
| ...
+--rw service
+--rw mtu? uint32
+--rw svc-pe-to-ce-bandwidth {vpn-common:inbound-bw}?
| +--rw bandwidth* [bw-type]
| +--rw bw-type identityref
| +--rw (type)?
| +--:(per-cos)
| | +--rw cos* [cos-id]
| | +--rw cos-id uint8
| | +--rw cir? uint64
| | +--rw cbs? uint64
| | +--rw eir? uint64
| | +--rw ebs? uint64
| | +--rw pir? uint64
| | +--rw pbs? uint64
| +--:(other)
| +--rw cir? uint64
| +--rw cbs? uint64
| +--rw eir? uint64
| +--rw ebs? uint64
| +--rw pir? uint64
| +--rw pbs? uint64
+--rw svc-ce-to-pe-bandwidth {vpn-common:outbound-bw}?
| +--rw bandwidth* [bw-type]
| +--rw bw-type identityref
| +--rw (type)?
| +--:(per-cos)
| | +--rw cos* [cos-id]
| | +--rw cos-id uint8
| | +--rw cir? uint64
| | +--rw cbs? uint64
| | +--rw eir? uint64
| | +--rw ebs? uint64
| | +--rw pir? uint64
| | +--rw pbs? uint64
| +--:(other)
| +--rw cir? uint64
| +--rw cbs? uint64
| +--rw eir? uint64
| +--rw ebs? uint64
| +--rw pir? uint64
| +--rw pbs? uint64
+--rw qos {vpn-common:qos}?
| +--rw qos-profiles
| +--rw qos-profile* [qos-profile-ref]
| +--rw qos-profile-ref leafref
| +--rw network-ref?
| | -> /nw:networks/network/network-id
| +--rw direction? identityref
+--rw access-control-list
+--rw acl-profiles
+--rw acl-profile* [forwarding-profile-ref]
+--rw forwarding-profile-ref leafref
+--rw network-ref?
-> /nw:networks/network/network-id
The service data nodes are defined as follows:
'mtu':
Specifies the Layer 2 MTU, in bytes, for the AC.
'svc-pe-to-ce-bandwidth' and 'svc-ce-to-pe-bandwidth':
Specify the service bandwidth for the AC.
'svc-pe-to-ce-bandwidth':
Indicates the inbound bandwidth of the connection (i.e., download bandwidth from the service provider to the site).
'svc-ce-to-pe-bandwidth':
Indicates the outbound bandwidth of the connection (i.e., upload bandwidth from the site to the service provider).
'svc-pe-to-ce-bandwidth' and 'svc-ce-to-pe-bandwidth' can be represented using the Committed Information Rate (CIR), the Committed Burst Size (CBS), the Excess Information Rate (EIR), the Excess Burst Size (EBS), the Peak Information Rate (PIR), and the Peak Burst Size (PBS). CIR, EIR, and PIR are expressed in bps, while CBS, EBS, and PBS are expressed in bytes.The following types, defined in , can be used to indicate the bandwidth type:
'bw-per-cos':
The bandwidth is per Class of Service (CoS).
'bw-per-port':
The bandwidth is per port.
'bw-per-site':
The bandwidth is for all peer SAPs that belong to the same site.
'bw-per-service':
The bandwidth is per service instance that is bound to an AC.
'qos':
Specifies a list of QoS profiles to apply for this AC.
'access-control-list':
Specifies a list of ACL profiles to apply for this AC.
YANG ModuleThis module uses types defined in , , , , , , , and .
module ietf-ac-ntw {
yang-version 1.1;
namespace "urn:ietf:params:xml:ns:yang:ietf-ac-ntw";
prefix ac-ntw;
import ietf-vpn-common {
prefix vpn-common;
reference
"RFC 9181: A Common YANG Data Model for Layer 2 and Layer 3
VPNs";
}
import ietf-inet-types {
prefix inet;
reference
"RFC 6991: Common YANG Data Types, Section 4";
}
import ietf-key-chain {
prefix key-chain;
reference
"RFC 8177: YANG Data Model for Key Chains";
}
import ietf-routing-types {
prefix rt-types;
reference
"RFC 8294: Common YANG Data Types for the Routing Area";
}
import ietf-routing-policy {
prefix rt-pol;
reference
"RFC 9067: A YANG Data Model for Routing Policy";
}
import ietf-interfaces {
prefix if;
reference
"RFC 8343: A YANG Data Model for Interface Management";
}
import ieee802-dot1q-types {
prefix dot1q-types;
reference
"IEEE Std 802.1Qcp: Bridges and Bridged Networks--
Amendment 30: YANG Data Model";
}
import ietf-network {
prefix nw;
reference
"RFC 8345: A YANG Data Model for Network Topologies,
Section 6.1";
}
import ietf-sap-ntw {
prefix sap;
reference
"RFC 9408: A YANG Network Data Model for Service Attachment
Points (SAPs)";
}
import ietf-ac-common {
prefix ac-common;
reference
"RFC 9833: A Common YANG Data Model for Attachment Circuits";
}
import ietf-ac-svc {
prefix ac-svc;
reference
"RFC 9834: YANG Data Models for Bearers and Attachment
Circuits as a Service (ACaaS)";
}
organization
"IETF OPSAWG (Operations and Management Area Working Group)";
contact
"WG Web: <https://datatracker.ietf.org/wg/opsawg/>
WG List: <mailto:opsawg@ietf.org>
Editor: Mohamed Boucadair
<mailto:mohamed.boucadair@orange.com>
Author: Richard Roberts
<mailto:rroberts@juniper.net>
Author: Oscar Gonzalez de Dios
<mailto:oscar.gonzalezdedios@telefonica.com>
Author: Samier Barguil
<mailto:ssamier.barguil_giraldo@nokia.com>
Author: Bo Wu
<mailto:lana.wubo@huawei.com>";
description
"This YANG module defines a YANG network model for the management
of attachment circuits (ACs).
Copyright (c) 2025 IETF Trust and the persons identified as
authors of the code. All rights reserved.
Redistribution and use in source and binary forms, with or
without modification, is permitted pursuant to, and subject
to the license terms contained in, the Revised BSD License
set forth in Section 4.c of the IETF Trust's Legal Provisions
Relating to IETF Documents
(https://trustee.ietf.org/license-info).
This version of this YANG module is part of RFC 9835; see the
RFC itself for full legal notices.";
revision 2025-09-29 {
description
"Initial revision.";
reference
"RFC 9835: A YANG Network Data Model for Attachment Circuits";
}
// References
/* A set of groupings to ease referencing cross-modules */
grouping attachment-circuit-reference {
description
"This grouping can be used to reference an AC in a specific
node.";
leaf ac-ref {
type leafref {
path "/nw:networks/nw:network[nw:network-id=current()/../"
+ "network-ref]/nw:node[nw:node-id=current()/../"
+ "node-ref]/ac-ntw:ac/ac-ntw:name";
require-instance false;
}
description
"An absolute reference to an AC.";
}
uses nw:node-ref;
}
grouping attachment-circuit-references {
description
"This grouping can be used to reference a list of ACs in a
specific node.";
leaf-list ac-ref {
type leafref {
path "/nw:networks/nw:network[nw:network-id=current()/../"
+ "network-ref]/nw:node[nw:node-id=current()/../"
+ "node-ref]/ac-ntw:ac/ac-ntw:name";
require-instance false;
}
description
"An absolute reference to an AC.";
}
uses nw:node-ref;
}
grouping ac-profile-reference {
description
"This grouping can be used to reference an AC profile.";
leaf ac-profile-ref {
type leafref {
path "/nw:networks/nw:network[nw:network-id=current()/../"
+ "network-ref]/ac-ntw:ac-profile/ac-ntw:name";
require-instance false;
}
description
"An absolute reference to an AC.";
}
uses nw:network-ref;
}
grouping encryption-profile-reference {
description
"This grouping can be used to reference an encryption
profile.";
leaf encryption-profile-ref {
type leafref {
path "/nw:networks/nw:network[nw:network-id=current()/../"
+ "network-ref]"
+ "/ac-ntw:specific-provisioning-profiles"
+ "/ac-ntw:valid-provider-identifiers"
+ "/ac-ntw:encryption-profile-identifier/ac-ntw:id";
require-instance false;
}
description
"An absolute reference to an encryption profile.";
}
uses nw:network-ref;
}
grouping qos-profile-reference {
description
"This grouping can be used to reference a QoS profile.";
leaf qos-profile-ref {
type leafref {
path "/nw:networks/nw:network[nw:network-id=current()/../"
+ "network-ref]"
+ "/ac-ntw:specific-provisioning-profiles"
+ "/ac-ntw:valid-provider-identifiers"
+ "/ac-ntw:qos-profile-identifier/ac-ntw:id";
require-instance false;
}
description
"An absolute reference to a QoS profile.";
}
uses nw:network-ref;
}
grouping failure-detection-profile-reference {
description
"This grouping can be used to reference a failure detection
profile.";
leaf failure-detection-profile-ref {
type leafref {
path "/nw:networks/nw:network[nw:network-id=current()/../"
+ "network-ref]"
+ "/ac-ntw:specific-provisioning-profiles"
+ "/ac-ntw:valid-provider-identifiers"
+ "/ac-ntw:failure-detection-profile-identifier/ac-ntw:id";
require-instance false;
}
description
"An absolute reference to a failure detection profile.";
}
uses nw:network-ref;
}
grouping forwarding-profile-reference {
description
"This grouping can be used to reference a forwarding profile.";
leaf forwarding-profile-ref {
type leafref {
path "/nw:networks/nw:network[nw:network-id=current()/../"
+ "network-ref]"
+ "/ac-ntw:specific-provisioning-profiles"
+ "/ac-ntw:valid-provider-identifiers"
+ "/ac-ntw:forwarding-profile-identifier/ac-ntw:id";
require-instance false;
}
description
"An absolute reference to a forwarding profile.";
}
uses nw:network-ref;
}
grouping routing-profile-reference {
description
"This grouping can be used to reference a routing profile.";
leaf routing-profile-ref {
type leafref {
path "/nw:networks/nw:network[nw:network-id=current()/../"
+ "network-ref]"
+ "/ac-ntw:specific-provisioning-profiles"
+ "/ac-ntw:valid-provider-identifiers"
+ "/ac-ntw:routing-profile-identifier/ac-ntw:id";
require-instance false;
}
description
"An absolute reference to a routing profile.";
}
uses nw:network-ref;
}
// Layer 2 connection
grouping l2-connection {
description
"Defines Layer 2 protocols and parameters that are required to
enable AC connectivity on the network side.";
container encapsulation {
description
"Container for Layer 2 encapsulation.";
leaf encap-type {
type identityref {
base vpn-common:encapsulation-type;
}
description
"Tagged interface type.";
}
container dot1q {
when "derived-from-or-self(../encap-type, "
+ "'vpn-common:dot1q')" {
description
"Only applies when the type of the tagged interface is
'dot1q'.";
}
description
"Tagged interface.";
uses ac-common:dot1q;
container tag-operations {
description
"Sets the tag manipulation policy for this AC. It
defines a set of tag manipulations that allow for the
insertion, removal, or rewriting of 802.1Q VLAN tags.
These operations are indicated for the CE-PE direction.
By default, tag operations are symmetric. As such, the
reverse tag operation is assumed on the PE-CE
direction.";
choice op-choice {
description
"Selects the tag rewriting policy for an AC.";
leaf pop {
type empty;
description
"Pop the outer tag.";
}
leaf push {
type empty;
description
"Pushes one or two tags defined by the tag-1 and
tag-2 leaves. It is assumed that, absent any
policy, the default value of 0 will be used for
the Priority Code Point (PCP) setting.";
}
leaf translate {
type empty;
description
"Translates the outer tag to one or two tags. PCP
bits are preserved.";
}
}
leaf tag-1 {
when 'not(../pop)';
type dot1q-types:vlanid;
description
"A first tag to be used for push or translate
operations. This tag will be used as the outermost
tag as a result of the tag operation.";
}
leaf tag-1-type {
type dot1q-types:dot1q-tag-type;
default "dot1q-types:s-vlan";
description
"Specifies a specific 802.1Q tag type of tag-1.";
}
leaf tag-2 {
when '(../translate)';
type dot1q-types:vlanid;
description
"A second tag to be used for translation.";
}
leaf tag-2-type {
type dot1q-types:dot1q-tag-type;
default "dot1q-types:c-vlan";
description
"Specifies a specific 802.1Q tag type of tag-2.";
}
}
}
container priority-tagged {
when "derived-from-or-self(../encap-type, "
+ "'vpn-common:priority-tagged')" {
description
"Only applies when the type of the tagged interface is
'priority-tagged'.";
}
description
"Priority tagged container.";
uses ac-common:priority-tagged;
}
container qinq {
when "derived-from-or-self(../encap-type, "
+ "'vpn-common:qinq')" {
description
"Only applies when the type of the tagged interface is
'QinQ'.";
}
description
"Includes QinQ parameters.";
uses ac-common:qinq;
container tag-operations {
description
"Sets the tag manipulation policy for this AC. It
defines a set of tag manipulations that allow for the
insertion, removal, or rewriting of 802.1Q VLAN tags.
These operations are indicated for the CE-PE direction.
By default, tag operations are symmetric. As such, the
reverse tag operation is assumed on the PE-CE
direction.";
choice op-choice {
description
"Selects the tag rewriting policy for an AC.";
leaf pop {
type uint8 {
range "1|2";
}
description
"Pops one or two tags as a function of the indicated
pop value.";
}
leaf push {
type empty;
description
"Pushes one or two tags defined by the tag-1 and
tag-2 leaves. It is assumed that, absent any
policy, the default value of 0 will be used for
PCP setting.";
}
leaf translate {
type uint8 {
range "1|2";
}
description
"Translates one or two outer tags. PCP bits are
preserved. The following operations are supported:
- translate 1 with tag-1 leaf is provided: only the
outermost tag is translated to the value in tag-1.
- translate 2 with both tag-1 and tag-2 leaves are
provided: both outer and inner tags are translated
to the values in tag-1 and tag-2, respectively.
- translate 2 with tag-1 leaf is provided: the
outer tag is popped while the inner tag is
translated to the value in tag-1.";
}
}
leaf tag-1 {
when 'not(../pop)';
type dot1q-types:vlanid;
description
"A first tag to be used for push or translate
operations. This tag will be used as the outermost
tag as a result of the tag operation.";
}
leaf tag-1-type {
type dot1q-types:dot1q-tag-type;
default "dot1q-types:s-vlan";
description
"Specifies a specific 802.1Q tag type of tag-1.";
}
leaf tag-2 {
when 'not(../pop)';
type dot1q-types:vlanid;
description
"A second tag to be used for push or translate
operations.";
}
leaf tag-2-type {
type dot1q-types:dot1q-tag-type;
default "dot1q-types:c-vlan";
description
"Specifies a specific 802.1Q tag type of tag-2.";
}
}
}
}
choice l2-service {
description
"The Layer 2 connectivity service can be provided by
indicating a pointer to an L2VPN or by specifying a Layer 2
tunnel service.";
container l2-tunnel-service {
description
"Defines a Layer 2 tunnel termination.";
uses ac-common:l2-tunnel-service;
}
case l2vpn {
leaf l2vpn-id {
type vpn-common:vpn-id;
description
"Indicates the L2VPN service associated with an
Integrated Routing and Bridging (IRB) interface.";
}
}
}
}
grouping l2-connection-if-ref {
description
"Specifies Layer 2 connection parameters with interface
references.";
uses l2-connection;
leaf l2-termination-point {
type string;
description
"Specifies a reference to a local Layer 2 termination point,
such as a Layer 2 sub-interface.";
}
leaf local-bridge-reference {
type string;
description
"Specifies a local bridge reference to accommodate, e.g.,
implementations that require internal bridging.
A reference may be a local bridge domain.";
}
leaf bearer-reference {
if-feature "ac-common:server-assigned-reference";
type string;
description
"This is an internal reference for the service provider to
identify the bearer associated with this AC.";
}
container lag-interface {
if-feature "vpn-common:lag-interface";
description
"Container for configuration of Link Aggregation Group (LAG)
interface attributes.";
leaf lag-interface-id {
type string;
description
"LAG interface identifier.";
}
container member-link-list {
description
"Container for the member link list.";
list member-link {
key "name";
description
"Member link.";
leaf name {
type string;
description
"Member link name.";
}
}
}
}
}
// IPv4 connection
grouping ipv4-connection {
description
"IPv4-specific connection parameters.";
leaf local-address {
type inet:ipv4-address;
description
"The IPv4 address used at the provider's interface.";
}
uses ac-common:ipv4-allocation-type;
choice allocation-type {
description
"Choice of the IPv4 address allocation.";
case dynamic {
description
"When the addresses are allocated by DHCP or other
dynamic means local to the infrastructure.";
choice address-assign {
description
"A choice for how IPv4 addresses are assigned.";
case number {
leaf number-of-dynamic-address {
type uint16;
description
"Specifies the number of IP addresses to be
assigned to the customer on this access.";
}
}
case explicit {
container customer-addresses {
description
"Container for customer addresses to be allocated
using DHCP.";
list address-pool {
key "pool-id";
description
"Describes IP addresses to be dynamically
allocated.
When only 'start-address' is present, it
represents a single address.
When both 'start-address' and 'end-address' are
specified, it implies a range inclusive of both
addresses.";
leaf pool-id {
type string;
description
"A pool identifier for the address range from
'start-address' to 'end-address'.";
}
leaf start-address {
type inet:ipv4-address;
mandatory true;
description
"Indicates the first address in the pool.";
}
leaf end-address {
type inet:ipv4-address;
description
"Indicates the last address in the pool.";
}
}
}
}
}
choice provider-dhcp {
description
"Parameters related to DHCP-allocated addresses.
IP addresses are allocated by DHCP, which is provided
by the operator.";
leaf dhcp-service-type {
type enumeration {
enum server {
description
"Local DHCP server.";
}
enum relay {
description
"Local DHCP relay. DHCP requests are relayed to a
provider's server.";
}
}
description
"Indicates the type of DHCP service to be enabled on
this access.";
}
choice service-type {
description
"Choice based on the DHCP service type.";
case relay {
description
"Container for a list of the provider's DHCP servers
(i.e., 'dhcp-service-type' is set to 'relay').";
leaf-list server-ip-address {
type inet:ipv4-address;
description
"IPv4 addresses of the provider's DHCP server, for
use by the local DHCP relay.";
}
}
}
}
choice dhcp-relay {
description
"The DHCP relay is provided by the operator.";
container customer-dhcp-servers {
description
"Container for a list of the customer's DHCP servers.";
leaf-list server-ip-address {
type inet:ipv4-address;
description
"IPv4 addresses of the customer's DHCP server.";
}
}
}
}
case static-addresses {
description
"Lists the static IPv4 addresses that are used.";
list address {
key "address-id";
ordered-by user;
description
"Lists the IPv4 addresses that are used. The first
address of the list is the primary address of the
connection.";
leaf address-id {
type string;
description
"An identifier of the static IPv4 address.";
}
leaf customer-address {
type inet:ipv4-address;
description
"An IPv4 address of the customer side.";
}
uses failure-detection-profile-reference;
}
}
}
}
grouping ipv6-connection {
description
"IPv6-specific connection parameters.";
leaf local-address {
type inet:ipv6-address;
description
"IPv6 address of the provider side.";
}
uses ac-common:ipv6-allocation-type;
choice allocation-type {
description
"Choice of the IPv6 address allocation.";
case dynamic {
description
"When the addresses are allocated by DHCP or other
dynamic means local to the infrastructure.";
choice address-assign {
description
"A choice for how IPv6 addresses are assigned.";
case number {
leaf number-of-dynamic-address {
type uint16;
description
"Specifies the number of IP addresses to be
assigned to the customer on this access.";
}
}
case explicit {
container customer-addresses {
description
"Container for customer addresses to be allocated
using DHCP.";
list address-pool {
key "pool-id";
description
"Describes IPv6 addresses to be dynamically
allocated.
When only 'start-address' is present, it
represents a single address.
When both 'start-address' and 'end-address' are
specified, it implies a range inclusive of both
addresses.";
leaf pool-id {
type string;
description
"A pool identifier for the address range from
'start-address' to 'end-address'.";
}
leaf start-address {
type inet:ipv6-address;
mandatory true;
description
"Indicates the first address in the pool.";
}
leaf end-address {
type inet:ipv6-address;
description
"Indicates the last address in the pool.";
}
}
}
}
}
choice provider-dhcp {
description
"Parameters related to DHCP-allocated addresses.
IP addresses are allocated by DHCP, which is provided
by the operator.";
leaf dhcp-service-type {
type enumeration {
enum server {
description
"Local DHCP server.";
}
enum relay {
description
"Local DHCP relay. DHCP requests are relayed to
a provider's server.";
}
}
description
"Indicates the type of DHCP service to be enabled on
this access.";
}
choice service-type {
description
"Choice based on the DHCP service type.";
case relay {
description
"Container for a list of the provider's DHCP servers
(i.e., 'dhcp-service-type' is set to 'relay').";
leaf-list server-ip-address {
type inet:ipv6-address;
description
"IPv6 addresses of the provider's DHCP server, for
use by the local DHCP relay.";
}
}
}
}
choice dhcp-relay {
description
"The DHCP relay is provided by the operator.";
container customer-dhcp-servers {
description
"Container for a list of the customer's DHCP servers.";
leaf-list server-ip-address {
type inet:ipv6-address;
description
"IPv6 addresses of the customer's DHCP servers.";
}
}
}
}
case static-addresses {
description
"Lists the static IPv6 addresses that are used.";
list address {
key "address-id";
ordered-by user;
description
"Lists the IPv6 addresses that are used. The first
address of the list is the primary address of
the connection.";
leaf address-id {
type string;
description
"An identifier of the static IPv6 address.";
}
leaf customer-address {
type inet:ipv6-address;
description
"An IPv6 address of the customer side.";
}
uses failure-detection-profile-reference;
}
}
}
}
grouping ip-connection {
description
"Defines IP connection parameters.";
leaf l3-termination-point {
type string;
description
"Specifies a reference to a local Layer 3 termination point,
such as a bridge domain interface.";
}
container ipv4 {
if-feature "vpn-common:ipv4";
description
"IPv4-specific connection parameters.";
uses ipv4-connection;
}
container ipv6 {
if-feature "vpn-common:ipv6";
description
"IPv6-specific connection parameters.";
uses ipv6-connection;
}
}
/* Routing */
//BGP base parameters
grouping bgp-base {
description
"Configuration specific to BGP.";
leaf description {
type string;
description
"Includes a description of the BGP session. This description
is meant to be used for diagnostic purposes. The semantics
of the description are local to an implementation.";
}
uses rt-pol:apply-policy-group;
leaf local-as {
type inet:as-number;
description
"Indicates a local Autonomous System Number (ASN), if an ASN
distinct from the ASN configured at the AC level is
needed.";
}
leaf peer-as {
type inet:as-number;
mandatory true;
description
"Indicates the customer's ASN when the customer requests BGP
routing.";
}
leaf address-family {
type identityref {
base vpn-common:address-family;
}
description
"This node contains the address families to be activated.
'dual-stack' means that both IPv4 and IPv6 will be
activated.";
}
leaf role {
type identityref {
base ac-common:bgp-role;
}
description
"Specifies the BGP role (provider, customer, peer, etc.).";
}
leaf multihop {
type uint8;
description
"Describes the number of IP hops allowed between a given BGP
neighbor and the PE.";
}
leaf as-override {
type boolean;
description
"Defines whether ASN override is enabled, i.e., replacing the
ASN of the customer specified in the AS_PATH attribute with
the local ASN.";
}
leaf allow-own-as {
type uint8;
description
"If set, specifies the maximum number of occurrences of the
provider's ASN that are permitted within the AS_PATH
before it is rejected.";
}
leaf prepend-global-as {
type boolean;
description
"In some situations, the ASN that is provided at the node
level may be distinct from the ASN configured at the AC.
When such ASNs are provided, they are both prepended to the
BGP route updates for this AC. To disable that behavior,
'prepend-global-as' must be set to 'false'. In such a
case, the ASN that is provided at the node level is not
prepended to the BGP route updates for this access.";
}
leaf send-default-route {
type boolean;
description
"Defines whether default routes can be advertised to a peer.
If set to 'true', the default routes are advertised to
a peer.";
}
leaf site-of-origin {
when "derived-from-or-self(../address-family, "
+ "'vpn-common:ipv4' or 'vpn-common:dual-stack')" {
description
"Only applies if IPv4 is activated.";
}
type rt-types:route-origin;
description
"The Site of Origin attribute is encoded as a Route Origin
Extended Community. It is meant to uniquely identify the
set of routes learned from a site via a particular AC and
is used to prevent routing loops.";
reference
"RFC 4364: BGP/MPLS IP Virtual Private Networks (VPNs),
Section 7";
}
leaf ipv6-site-of-origin {
when "derived-from-or-self(../address-family, "
+ "'vpn-common:ipv6' or 'vpn-common:dual-stack')" {
description
"Only applies if IPv6 is activated.";
}
type rt-types:ipv6-route-origin;
description
"The IPv6 Site of Origin attribute is encoded as an IPv6
Route Origin Extended Community. It is meant to uniquely
identify the set of routes learned from a site.";
reference
"RFC 5701: IPv6 Address Specific BGP Extended Community
Attribute";
}
list redistribute-connected {
key "address-family";
description
"Indicates, per address family, the policy to follow for
connected routes.";
leaf address-family {
type identityref {
base vpn-common:address-family;
}
description
"Indicates the address family.";
}
leaf enabled {
type boolean;
description
"Enables, when set to 'true', the redistribution of
connected routes.";
}
}
container bgp-max-prefix {
description
"Controls the behavior when a prefix maximum is reached.";
leaf max-prefix {
type uint32;
description
"Indicates the maximum number of BGP prefixes allowed in
the BGP session.
It allows control of how many prefixes can be received
from a neighbor.
If the limit is exceeded, the action indicated in
'violate-action' will be followed.";
reference
"RFC 4271: A Border Gateway Protocol 4 (BGP-4),
Section 8.2.2";
}
leaf warning-threshold {
type decimal64 {
fraction-digits 5;
range "0..100";
}
units "percent";
description
"When this value is reached, a warning notification will be
triggered.";
}
leaf violate-action {
type enumeration {
enum warning {
description
"Only a warning message is sent to the peer when the
limit is exceeded.";
}
enum discard-extra-paths {
description
"Discards extra paths when the limit is exceeded.";
}
enum restart {
description
"The BGP session restarts after the indicated time
interval.";
}
}
description
"If the BGP neighbor 'max-prefix' limit is reached, the
action indicated in 'violate-action' will be followed.";
}
leaf restart-timer {
type uint32;
units "seconds";
description
"Time interval after which the BGP session will be
reestablished.";
}
}
container bgp-timers {
description
"Includes two BGP timers.";
leaf keepalive {
type uint16 {
range "0..21845";
}
units "seconds";
description
"This timer indicates the KEEPALIVE messages' frequency
between a PE and a BGP peer.
If set to '0', it indicates that KEEPALIVE messages are
disabled.
It is suggested that the maximum time between KEEPALIVE
messages be one-third of the Hold Time interval.";
reference
"RFC 4271: A Border Gateway Protocol 4 (BGP-4),
Section 4.4";
}
leaf hold-time {
type uint16 {
range "0 | 3..65535";
}
units "seconds";
description
"Indicates the maximum number of seconds that may elapse
between the receipt of successive KEEPALIVE and/or UPDATE
messages from the peer.
The Hold Time must be either zero or at least three
seconds.";
reference
"RFC 4271: A Border Gateway Protocol 4 (BGP-4),
Section 4.2";
}
}
}
grouping bgp-base-peer-group {
description
"Grouping for a basic BGP peer group.";
leaf name {
type string;
description
"Name of the BGP peer group.";
}
uses bgp-base;
}
grouping bgp-base-peer-group-list {
description
"Grouping for a list of basic BGP peer groups.";
list peer-group {
key "name";
description
"List of BGP peer groups uniquely identified by a name.";
uses bgp-base-peer-group;
}
}
grouping bgp-peer-group {
description
"Grouping for BGP peer group.";
leaf name {
type string;
description
"Name of the BGP peer group";
}
leaf local-address {
type union {
type inet:ip-address;
type if:interface-ref;
}
description
"Sets the local IP address to use for the BGP transport
session. This may be expressed as either an IP
address or a reference to an interface.";
}
uses bgp-base;
uses ac-common:bgp-authentication;
}
grouping bgp-peer-group-list {
description
"Grouping for a list of BGP peer groups.";
list peer-group {
key "name";
description
"List of BGP peer groups uniquely identified by a name.";
uses bgp-peer-group;
}
}
// RIP base parameters
grouping rip-base {
description
"Configuration specific to RIP routing.";
leaf address-family {
type identityref {
base vpn-common:address-family;
}
description
"Indicates whether IPv4, IPv6, or both address families are
to be activated.";
}
container timers {
description
"Indicates the RIP timers.";
reference
"RFC 2080: RIPng for IPv6
RFC 2453: RIP Version 2";
leaf update-interval {
type uint16 {
range "1..32767";
}
units "seconds";
description
"Indicates the RIP update time, i.e., the amount of time
for which RIP updates are sent.";
}
leaf invalid-interval {
type uint16 {
range "1..32767";
}
units "seconds";
description
"The interval before a route is declared invalid after no
updates are received. This value is at least three times
the value for the 'update-interval' argument.";
}
leaf holddown-interval {
type uint16 {
range "1..32767";
}
units "seconds";
description
"Specifies the interval before better routes are
released.";
}
leaf flush-interval {
type uint16 {
range "1..32767";
}
units "seconds";
description
"Indicates the RIP flush timer, i.e., the amount of time
that must elapse before a route is removed from the
routing table.";
}
}
leaf default-metric {
type uint8 {
range "0..16";
}
description
"Sets the default metric.";
}
}
// Routing profile
grouping routing-profile {
description
"Defines profiles for routing protocols.";
list routing-protocol {
key "id";
description
"List of routing protocols used on the AC.";
leaf id {
type string;
description
"Unique identifier for the routing protocol.";
}
leaf type {
type identityref {
base vpn-common:routing-protocol-type;
}
description
"Type of routing protocol.";
}
container bgp {
when "derived-from-or-self(../type, "
+ "'vpn-common:bgp-routing')" {
description
"Only applies when the protocol is BGP.";
}
if-feature "vpn-common:rtg-bgp";
description
"Configuration specific to BGP.";
container peer-groups {
description
"Lists a set of BGP peer groups.";
uses bgp-base-peer-group-list;
}
}
container ospf {
when "derived-from-or-self(../type, "
+ "'vpn-common:ospf-routing')" {
description
"Only applies when the protocol is OSPF.";
}
if-feature "vpn-common:rtg-ospf";
description
"Configuration specific to OSPF.";
uses ac-common:ospf-basic;
leaf max-lsa {
type uint32 {
range "1..4294967294";
}
description
"Maximum number of allowed Link State Advertisements
(LSAs) that the OSPF instance will accept.";
}
leaf passive {
type boolean;
description
"When set to 'true', enables a passive interface. It is
active when set to 'false'. A passive interface's
prefix will be advertised, but no neighbor adjacencies
will be formed on the interface.";
}
}
container isis {
when "derived-from-or-self(../type, "
+ "'vpn-common:isis-routing')" {
description
"Only applies when the protocol is IS-IS.";
}
if-feature "vpn-common:rtg-isis";
description
"Configuration specific to IS-IS.";
uses ac-common:isis-basic;
leaf level {
type identityref {
base vpn-common:isis-level;
}
description
"Can be 'level-1', 'level-2', or 'level-1-2'.";
reference
"RFC 9181: A Common YANG Data Model for Layer 2
and Layer 3 VPNs";
}
leaf metric {
type uint32 {
range "0 .. 16777215";
}
description
"Metric of the AC. It is used in the routing state
calculation and path selection.";
}
leaf passive {
type boolean;
description
"When set to 'false', the interface is active. In such
mode, the interface sends or receives IS-IS protocol
control packets.
When set to 'true', the interface is passive. That
is, it suppresses the sending of IS-IS updates through
the specified interface.";
}
}
container rip {
when "derived-from-or-self(../type, "
+ "'vpn-common:rip-routing')" {
description
"Only applies when the protocol is RIP.";
}
if-feature "vpn-common:rtg-rip";
description
"Configuration specific to RIP routing.";
uses rip-base;
}
container vrrp {
when "derived-from-or-self(../type, "
+ "'vpn-common:vrrp-routing')" {
description
"Only applies when the protocol is the Virtual Router
Redundancy Protocol (VRRP).";
}
if-feature "vpn-common:rtg-vrrp";
description
"Configuration specific to VRRP.";
reference
"RFC 9568: Virtual Router Redundancy Protocol (VRRP)
Version 3 for IPv4 and IPv6";
leaf address-family {
type identityref {
base vpn-common:address-family;
}
description
"Indicates whether IPv4, IPv6, or both address families
are to be enabled.";
}
leaf ping-reply {
type boolean;
description
"Controls whether the VRRP speaker should reply to ping
requests. Such behavior is enabled, if set to 'true'.";
}
}
}
}
grouping routing {
description
"Defines routing protocols.";
list routing-protocol {
key "id";
description
"List of routing protocols used on the AC.";
leaf id {
type string;
description
"Unique identifier for the routing protocol.";
}
leaf type {
type identityref {
base vpn-common:routing-protocol-type;
}
description
"Type of routing protocol.";
}
list routing-profile {
key "routing-profile-ref";
description
"Routing profiles.";
uses routing-profile-reference;
leaf type {
type identityref {
base vpn-common:ie-type;
}
description
"Import, export, or both.";
}
}
container static {
when "derived-from-or-self(../type, "
+ "'vpn-common:static-routing')" {
description
"Only applies when the protocol is static routing.";
}
description
"Configuration specific to static routing.";
container cascaded-lan-prefixes {
description
"LAN prefixes from the customer.";
list ipv4-lan-prefix {
if-feature "vpn-common:ipv4";
key "lan next-hop";
description
"List of LAN prefixes for the site.";
uses ac-common:ipv4-static-rtg-entry;
uses bfd-routing;
leaf preference {
type uint32;
description
"Indicates the preference associated with the static
route.";
}
uses ac-common:service-status;
}
list ipv6-lan-prefix {
if-feature "vpn-common:ipv6";
key "lan next-hop";
description
"List of LAN prefixes for the site.";
uses ac-common:ipv6-static-rtg-entry;
uses bfd-routing;
leaf preference {
type uint32;
description
"Indicates the preference associated with the static
route.";
}
uses ac-common:service-status;
}
}
}
container bgp {
when "derived-from-or-self(../type, "
+ "'vpn-common:bgp-routing')" {
description
"Only applies when the protocol is BGP.";
}
if-feature "vpn-common:rtg-bgp";
description
"Configuration specific to BGP.";
container peer-groups {
description
"Configuration for BGP peer groups";
uses bgp-peer-group-list;
}
list neighbor {
key "remote-address";
description
"List of BGP neighbors.";
leaf remote-address {
type inet:ip-address;
description
"The remote IP address of this entry's BGP peer.";
}
leaf local-address {
type union {
type inet:ip-address;
type if:interface-ref;
}
description
"Sets the local IP address to use for the BGP transport
session. This may be expressed as either an IP
address or a reference to an interface.";
}
leaf peer-group {
type leafref {
path "../../peer-groups/peer-group/name";
}
description
"The peer group with which this neighbor is
associated.";
}
uses bgp-base;
uses bfd-routing;
uses ac-common:bgp-authentication;
uses ac-common:service-status;
}
}
container ospf {
when "derived-from-or-self(../type, "
+ "'vpn-common:ospf-routing')" {
description
"Only applies when the protocol is OSPF.";
}
if-feature "vpn-common:rtg-ospf";
description
"Configuration specific to OSPF.";
uses ac-common:ospf-basic;
container sham-links {
if-feature "vpn-common:rtg-ospf-sham-link";
description
"List of sham links.";
reference
"RFC 4577: OSPF as the Provider/Customer Edge Protocol
for BGP/MPLS IP Virtual Private Networks
(VPNs), Section 4.2.7
RFC 6565: OSPFv3 as a Provider Edge to Customer Edge
(PE-CE) Routing Protocol, Section 5";
list sham-link {
key "target-site";
description
"Creates a sham link with another site.";
leaf target-site {
type string;
description
"Target site for the sham link connection. The site
is referred to by its identifier.";
}
leaf metric {
type uint16;
description
"Metric of the sham link. It is used in the routing
state calculation and path selection.";
reference
"RFC 4577: OSPF as the Provider/Customer Edge
Protocol for BGP/MPLS IP Virtual Private
Networks (VPNs), Section 4.2.7.3
RFC 6565: OSPFv3 as a Provider Edge to Customer Edge
(PE-CE) Routing Protocol, Section 5.2";
}
}
}
leaf max-lsa {
type uint32 {
range "1..4294967294";
}
description
"Maximum number of allowed Link State Advertisements
(LSAs) that the OSPF instance will accept.";
}
leaf passive {
type boolean;
description
"When set to 'true', enables a passive interface. It is
active when set to 'false'. A passive interface's
prefix will be advertised, but no neighbor adjacencies
will be formed on the interface.";
}
uses ac-common:ospf-authentication;
uses ac-common:service-status;
}
container isis {
when "derived-from-or-self(../type, "
+ "'vpn-common:isis-routing')" {
description
"Only applies when the protocol is IS-IS.";
}
if-feature "vpn-common:rtg-isis";
description
"Configuration specific to IS-IS.";
uses ac-common:isis-basic;
leaf level {
type identityref {
base vpn-common:isis-level;
}
description
"Can be 'level-1', 'level-2', or 'level-1-2'.";
reference
"RFC 9181: A Common YANG Data Model for Layer 2 and
Layer 3 VPNs";
}
leaf metric {
type uint32 {
range "0 .. 16777215";
}
description
"Metric of the AC. It is used in the routing state
calculation and path selection.";
}
leaf passive {
type boolean;
description
"When set to 'false', the interface is active. In such
mode, the interface sends or receives IS-IS protocol
control packets.
When set to 'true', the interface is passive. That
is, it suppresses the sending of IS-IS updates through
the specified interface.";
}
uses ac-common:isis-authentication;
uses ac-common:service-status;
}
container rip {
when "derived-from-or-self(../type, "
+ "'vpn-common:rip-routing')" {
description
"Only applies when the protocol is RIP.
For IPv4, the model assumes that RIP version 2
is used.";
}
if-feature "vpn-common:rtg-rip";
description
"Configuration specific to RIP routing.";
uses rip-base;
uses ac-common:rip-authentication;
uses ac-common:service-status;
}
container vrrp {
when "derived-from-or-self(../type, "
+ "'vpn-common:vrrp-routing')" {
description
"Only applies when the protocol is VRRP.";
}
if-feature "vpn-common:rtg-vrrp";
description
"Configuration specific to VRRP.";
reference
"RFC 9568: Virtual Router Redundancy Protocol (VRRP)
Version 3 for IPv4 and IPv6";
leaf address-family {
type identityref {
base vpn-common:address-family;
}
description
"Indicates whether IPv4, IPv6, or both address families
are to be enabled.";
}
leaf vrrp-group {
type uint8 {
range "1..255";
}
description
"Includes the VRRP group identifier.";
}
leaf backup-peer {
type inet:ip-address;
description
"Indicates the IP address of the peer.";
}
leaf-list virtual-ip-address {
type inet:ip-address;
description
"Virtual IP addresses for a single VRRP group.";
reference
"RFC 9568: Virtual Router Redundancy Protocol (VRRP)
Version 3 for IPv4 and IPv6, Sections 1.2
and 1.3";
}
leaf priority {
type uint8 {
range "1..254";
}
description
"Sets the local priority of the VRRP speaker.";
}
leaf ping-reply {
type boolean;
description
"Controls whether the VRRP speaker should reply to ping
requests.";
}
uses ac-common:service-status;
}
}
}
// OAM
grouping bfd {
description
"Grouping for BFD.";
leaf session-type {
type identityref {
base vpn-common:bfd-session-type;
}
description
"Specifies the BFD session type.";
}
leaf desired-min-tx-interval {
type uint32;
units "microseconds";
description
"The minimum interval between transmissions of BFD Control
packets, as desired by the operator.";
reference
"RFC 5880: Bidirectional Forwarding Detection (BFD),
Section 6.8.7";
}
leaf required-min-rx-interval {
type uint32;
units "microseconds";
description
"The minimum interval between received BFD Control packets
that the PE should support.";
reference
"RFC 5880: Bidirectional Forwarding Detection (BFD),
Section 6.8.7";
}
leaf local-multiplier {
type uint8 {
range "1..255";
}
description
"Specifies the detection multiplier that is transmitted to a
BFD peer.
The detection interval for the receiving BFD peer is
calculated by multiplying the value of the negotiated
transmission interval by the received detection multiplier
value.";
reference
"RFC 5880: Bidirectional Forwarding Detection (BFD),
Section 6.8.7";
}
leaf holdtime {
type uint32;
units "milliseconds";
description
"Expected BFD holdtime.
The customer may impose some fixed values for the holdtime
period if the provider allows the customer to use this
function.";
reference
"RFC 5880: Bidirectional Forwarding Detection (BFD),
Section 6.8.18";
}
}
grouping bfd-routing {
description
"Defines a basic BFD grouping for routing configuration.";
container bfd {
if-feature "vpn-common:bfd";
description
"BFD control for this neighbor.";
leaf enabled {
type boolean;
description
"Enables BFD if set to 'true'. BFD is disabled if set to
'false'.";
}
uses failure-detection-profile-reference;
}
}
grouping oam {
description
"Defines the Operations, Administration, and Maintenance
(OAM) mechanisms used.";
container bfd {
if-feature "vpn-common:bfd";
description
"Container for BFD.";
list session {
key "dest-addr";
description
"List of IP sessions.";
leaf dest-addr {
type inet:ip-address;
description
"IP address of the peer.";
}
leaf source-address {
type union {
type inet:ip-address;
type if:interface-ref;
}
description
"Sets the local IP address to use for the BFD session.
This may be expressed as either an IP address or
a reference to an interface.";
}
uses failure-detection-profile-reference;
uses bfd;
container authentication {
presence "Enables BFD authentication";
description
"Parameters for BFD authentication.";
leaf key-chain {
type key-chain:key-chain-ref;
description
"Name of the key chain.";
}
leaf meticulous {
type boolean;
description
"Enables meticulous mode, if set to 'true'.";
reference
"RFC 5880: Bidirectional Forwarding Detection (BFD),
Section 6.7";
}
}
uses ac-common:service-status;
}
}
}
// Security
grouping security {
description
"Security parameters for an AC.";
container encryption {
if-feature "vpn-common:encryption";
description
"Container for AC encryption.";
leaf enabled {
type boolean;
description
"If set to 'true', traffic encryption on the connection is
required. Otherwise, it is disabled.";
}
leaf layer {
when "../enabled = 'true'" {
description
"Included only when encryption is enabled.";
}
type enumeration {
enum layer2 {
description
"Encryption occurs at Layer 2.";
}
enum layer3 {
description
"Encryption occurs at Layer 3. For example, IPsec
may be used when a customer requests Layer 3
encryption.";
}
}
description
"Indicates the layer on which encryption is applied.";
}
}
container encryption-profile {
when "../encryption/enabled = 'true'" {
description
"Indicates the layer on which encryption is enabled.";
}
description
"Container for the encryption profile.";
choice profile {
description
"Choice for the encryption profile.";
case provider-profile {
uses encryption-profile-reference;
}
case customer-profile {
leaf customer-key-chain {
type key-chain:key-chain-ref;
description
"Customer-supplied key chain.";
}
}
}
}
}
// AC profile
grouping ac-profile {
description
"Grouping for AC profiles.";
container routing-protocols {
description
"Defines routing protocols.";
uses routing-profile;
}
container oam {
description
"Defines the OAM mechanisms used for the AC profile.";
container bfd {
if-feature "vpn-common:bfd";
description
"Container for BFD.";
uses bfd;
}
}
}
// Parent and Child ACs
grouping ac-hierarchy {
description
"Container for Parent and Child AC references.";
container parent-ref {
description
"Specifies the Parent AC that is inherited by an AC.
Parent ACs are used, e.g., in contexts where multiple
CEs are terminating the same AC, but some specific
information is required for each peer SAP.";
uses ac-ntw:attachment-circuit-reference;
}
container child-ref {
config false;
description
"Specifies a Child AC that relies upon a Parent AC.";
uses ac-ntw:attachment-circuit-references;
}
}
// AC network provisioning
grouping ac {
description
"Grouping for ACs.";
leaf description {
type string;
description
"Associates a description with an AC.";
}
container l2-connection {
if-feature "ac-common:layer2-ac";
description
"Defines Layer 2 protocols and parameters that are required
to enable AC connectivity.";
uses l2-connection-if-ref;
}
container ip-connection {
if-feature "ac-common:layer3-ac";
description
"Defines IP connection parameters.";
uses ip-connection;
}
container routing-protocols {
description
"Defines routing protocols.";
uses routing;
}
container oam {
description
"Defines the OAM mechanisms used for the AC.";
uses oam;
}
container security {
description
"AC-specific security parameters.";
uses security;
}
container service {
description
"AC-specific bandwidth parameters.";
leaf mtu {
type uint32;
units "bytes";
description
"Layer 2 MTU.";
}
uses ac-svc:bandwidth;
container qos {
if-feature "vpn-common:qos";
description
"QoS configuration.";
container qos-profiles {
description
"QoS profile configuration.";
list qos-profile {
key "qos-profile-ref";
description
"Points to a QoS profile.";
uses qos-profile-reference;
leaf direction {
type identityref {
base vpn-common:qos-profile-direction;
}
description
"The direction to which the QoS profile is applied.";
}
}
}
}
container access-control-list {
description
"Container for the Access Control List (ACL).";
container acl-profiles {
description
"ACL profile configuration.";
list acl-profile {
key "forwarding-profile-ref";
description
"Points to an ACL profile.";
uses forwarding-profile-reference;
}
}
}
}
}
augment "/nw:networks/nw:network" {
description
"Add a list of profiles.";
container specific-provisioning-profiles {
description
"Contains a set of valid profiles to reference in the AC
activation.";
uses ac-common:ac-profile-cfg;
}
list ac-profile {
key "name";
description
"Specifies a list of AC profiles.";
leaf name {
type string;
description
"Name of the AC.";
}
uses ac-ntw:ac-profile;
}
}
augment "/nw:networks/nw:network/nw:node" {
when '../nw:network-types/sap:sap-network' {
description
"Augmentation parameters apply only for SAP networks.";
}
description
"Augments nodes with AC provisioning details.";
list ac {
key "name";
description
"List of ACs.";
leaf name {
type string;
description
"A name that identifies the AC locally.";
}
leaf svc-ref {
type ac-svc:attachment-circuit-reference;
description
"A reference to the AC as exposed at the service level.";
}
list profile {
key "ac-profile-ref";
description
"List of AC profiles.";
uses ac-profile-reference;
}
uses ac-hierarchy;
leaf-list peer-sap-id {
type string;
description
"One or more peer SAPs can be indicated.";
}
uses ac-common:redundancy-group;
uses ac-common:service-status;
uses ac-ntw:ac;
}
}
augment "/nw:networks/nw:network/nw:node"
+ "/sap:service/sap:sap" {
when '../../../nw:network-types/sap:sap-network' {
description
"Augmentation parameters apply only for SAP networks.";
}
description
"Augments SAPs with AC provisioning details.";
list ac {
key "ac-ref";
description
"Specifies the ACs that are terminated by the SAP.";
uses ac-ntw:attachment-circuit-reference;
}
}
}
Security ConsiderationsThis section is modeled after the template described in .The "ietf-ac-ntw" YANG module defines a data model that is
designed to be accessed via YANG-based management protocols, such as
NETCONF and RESTCONF . These protocols have to
use a secure transport layer (e.g., SSH , TLS , and
QUIC ) and have to use mutual authentication.The Network Configuration Access Control Model (NACM)
provides the means to restrict access for particular NETCONF or
RESTCONF users to a preconfigured subset of all available NETCONF or
RESTCONF protocol operations and content.There are a number of data nodes defined in this YANG module that are
writable/creatable/deletable (i.e., "config true", which is the
default). All writable data nodes are likely to be reasonably sensitive or vulnerable
in some network environments. Write operations (e.g., edit-config)
and delete operations to these data nodes without proper protection
or authentication can have a negative effect on network operations.
The following
subtrees and data nodes have particular sensitivities/vulnerabilities:
'specific-provisioning-profiles':
This container includes a set of sensitive data that
influences how an AC is delivered. For example, an
attacker who has access to these data nodes may be able to
manipulate routing policies, QoS policies, or encryption
properties. These data nodes are defined with "nacm:default-deny-
write" tagging .
'ac':
An attacker who is able to access network nodes can
undertake various attacks, such as modify the attributes of an AC (e.g.,
QoS, bandwidth, routing protocols, keying material), leading to
malfunctioning of services that are delivered over that AC and therefore to Service Level
Agreement (SLA) violations. In addition, an attacker could
attempt to add a new AC.
By also using NACM to prevent unauthorized access, such
activity can be detected by adequately monitoring and tracking
network configuration changes.
Some of the readable data nodes in this YANG module may be considered
sensitive or vulnerable in some network environments. It is thus
important to control read access (e.g., via get, get-config, or
notification) to these data nodes. Specifically, the following
subtrees and data nodes have particular sensitivities/vulnerabilities:
'ac':
Unauthorized access to this subtree can disclose the identity
of a customer 'peer-sap-id'.
'l2-connection' and 'ip-connection':
An attacker can retrieve
privacy-related information, which can be used to track a
customer. Disclosing such information may be considered a
violation of the customer-provider trust relationship.
'keying-material' and 'customer-key-chain':
An attacker can retrieve the cryptographic keys
protecting an AC (routing, in particular). These keys could
be used to inject spoofed routing advertisements.
There are no particularly sensitive RPC or action operations.Several data nodes ('bgp', 'ospf', 'isis', 'rip', and 'customer-key-chain') rely upon the key chains described in for authentication purposes. As such, the AC network module inherits the security considerations discussed in . Also, these data nodes support supplying explicit keys as strings in ASCII format. The use of keys in hexadecimal string format would afford greater key entropy with the same number of key-string octets. However, such a format is not included in this version of the AC network model, because it is not supported by the underlying device modules (e.g., ). specifies the encryption to be applied to traffic for a given AC.IANA ConsiderationsIANA has registered the following URI in the "ns" subregistry within
the "IETF XML Registry" :
URI:
urn:ietf:params:xml:ns:yang:ietf-ac-ntw
Registrant Contact:
The IESG.
XML:
N/A; the requested URI is an XML namespace.
IANA has registered the following YANG module in the "YANG Module
Names" registry within the "YANG Parameters" registry group:
Name:
ietf-ac-ntw
Maintained by IANA?
N
Namespace:
urn:ietf:params:xml:ns:yang:ietf-ac-ntw
Prefix:
ac-ntw
Reference:
RFC 9835
ReferencesNormative ReferencesIEEE Standard for Local and metropolitan area networks--Bridges and Bridged Networks--Amendment 30: YANG Data ModelIEEERIPng for IPv6This document specifies a routing protocol for an IPv6 internet. It is based on protocols and algorithms currently in wide use in the IPv4 Internet [STANDARDS-TRACK]Key words for use in RFCs to Indicate Requirement LevelsIn many standards track documents several words are used to signify the requirements in the specification. These words are often capitalized. This document defines these words as they should be interpreted in IETF documents. This document specifies an Internet Best Current Practices for the Internet Community, and requests discussion and suggestions for improvements.RIP Version 2This document specifies an extension of the Routing Information Protocol (RIP) to expand the amount of useful information carried in RIP messages and to add a measure of security. [STANDARDS-TRACK]The IETF XML RegistryThis document describes an IANA maintained registry for IETF standards which use Extensible Markup Language (XML) related items such as Namespaces, Document Type Declarations (DTDs), Schemas, and Resource Description Framework (RDF) Schemas.A Border Gateway Protocol 4 (BGP-4)This document discusses the Border Gateway Protocol (BGP), which is an inter-Autonomous System routing protocol.The primary function of a BGP speaking system is to exchange network reachability information with other BGP systems. This network reachability information includes information on the list of Autonomous Systems (ASes) that reachability information traverses. This information is sufficient for constructing a graph of AS connectivity for this reachability from which routing loops may be pruned, and, at the AS level, some policy decisions may be enforced.BGP-4 provides a set of mechanisms for supporting Classless Inter-Domain Routing (CIDR). These mechanisms include support for advertising a set of destinations as an IP prefix, and eliminating the concept of network "class" within BGP. BGP-4 also introduces mechanisms that allow aggregation of routes, including aggregation of AS paths.This document obsoletes RFC 1771. [STANDARDS-TRACK]BGP/MPLS IP Virtual Private Networks (VPNs)This document describes a method by which a Service Provider may use an IP backbone to provide IP Virtual Private Networks (VPNs) for its customers. This method uses a "peer model", in which the customers' edge routers (CE routers) send their routes to the Service Provider's edge routers (PE routers); there is no "overlay" visible to the customer's routing algorithm, and CE routers at different sites do not peer with each other. Data packets are tunneled through the backbone, so that the core routers do not need to know the VPN routes. [STANDARDS-TRACK]OSPF as the Provider/Customer Edge Protocol for BGP/MPLS IP Virtual Private Networks (VPNs)Many Service Providers offer Virtual Private Network (VPN) services to their customers, using a technique in which customer edge routers (CE routers) are routing peers of provider edge routers (PE routers). The Border Gateway Protocol (BGP) is used to distribute the customer's routes across the provider's IP backbone network, and Multiprotocol Label Switching (MPLS) is used to tunnel customer packets across the provider's backbone. This is known as a "BGP/MPLS IP VPN". The base specification for BGP/MPLS IP VPNs presumes that the routing protocol on the interface between a PE router and a CE router is BGP. This document extends that specification by allowing the routing protocol on the PE/CE interface to be the Open Shortest Path First (OSPF) protocol.This document updates RFC 4364. [STANDARDS-TRACK]IPv6 Address Specific BGP Extended Community AttributeCurrent specifications of BGP Extended Communities (RFC 4360) support the IPv4 Address Specific Extended Community, but do not support an IPv6 Address Specific Extended Community. The lack of an IPv6 Address Specific Extended Community may be a problem when an application uses the IPv4 Address Specific Extended Community, and one wants to use this application in a pure IPv6 environment. This document defines a new BGP attribute, the IPv6 Address Specific Extended Community, that addresses this problem. The IPv6 Address Specific Extended Community is similar to the IPv4 Address Specific Extended Community, except that it carries an IPv6 address rather than an IPv4 address. [STANDARDS TRACK]OSPFv2 HMAC-SHA Cryptographic AuthenticationThis document describes how the National Institute of Standards and Technology (NIST) Secure Hash Standard family of algorithms can be used with OSPF version 2's built-in, cryptographic authentication mechanism. This updates, but does not supercede, the cryptographic authentication mechanism specified in RFC 2328. [STANDARDS-TRACK]Bidirectional Forwarding Detection (BFD)This document describes a protocol intended to detect faults in the bidirectional path between two forwarding engines, including interfaces, data link(s), and to the extent possible the forwarding engines themselves, with potentially very low latency. It operates independently of media, data protocols, and routing protocols. [STANDARDS-TRACK]The TCP Authentication OptionThis document specifies the TCP Authentication Option (TCP-AO), which obsoletes the TCP MD5 Signature option of RFC 2385 (TCP MD5). TCP-AO specifies the use of stronger Message Authentication Codes (MACs), protects against replays even for long-lived TCP connections, and provides more details on the association of security with TCP connections than TCP MD5. TCP-AO is compatible with either a static Master Key Tuple (MKT) configuration or an external, out-of-band MKT management mechanism; in either case, TCP-AO also protects connections when using the same MKT across repeated instances of a connection, using traffic keys derived from the MKT, and coordinates MKT changes between endpoints. The result is intended to support current infrastructure uses of TCP MD5, such as to protect long-lived connections (as used, e.g., in BGP and LDP), and to support a larger set of MACs with minimal other system and operational changes. TCP-AO uses a different option identifier than TCP MD5, even though TCP-AO and TCP MD5 are never permitted to be used simultaneously. TCP-AO supports IPv6, and is fully compatible with the proposed requirements for the replacement of TCP MD5. [STANDARDS-TRACK]YANG - A Data Modeling Language for the Network Configuration Protocol (NETCONF)YANG is a data modeling language used to model configuration and state data manipulated by the Network Configuration Protocol (NETCONF), NETCONF remote procedure calls, and NETCONF notifications. [STANDARDS-TRACK]OSPFv3 as a Provider Edge to Customer Edge (PE-CE) Routing ProtocolMany Service Providers (SPs) offer Virtual Private Network (VPN) services to their customers using a technique in which Customer Edge (CE) routers are routing peers of Provider Edge (PE) routers. The Border Gateway Protocol (BGP) is used to distribute the customer's routes across the provider's IP backbone network, and Multiprotocol Label Switching (MPLS) is used to tunnel customer packets across the provider's backbone. Support currently exists for both IPv4 and IPv6 VPNs; however, only Open Shortest Path First version 2 (OSPFv2) as PE-CE protocol is specified. This document extends those specifications to support OSPF version 3 (OSPFv3) as a PE-CE routing protocol. The OSPFv3 PE-CE functionality is identical to that of OSPFv2 except for the differences described in this document. [STANDARDS-TRACK]Common YANG Data TypesThis document introduces a collection of common data types to be used with the YANG data modeling language. This document obsoletes RFC 6021.Supporting Authentication Trailer for OSPFv3Currently, OSPF for IPv6 (OSPFv3) uses IPsec as the only mechanism for authenticating protocol packets. This behavior is different from authentication mechanisms present in other routing protocols (OSPFv2, Intermediate System to Intermediate System (IS-IS), RIP, and Routing Information Protocol Next Generation (RIPng)). In some environments, it has been found that IPsec is difficult to configure and maintain and thus cannot be used. This document defines an alternative mechanism to authenticate OSPFv3 protocol packets so that OSPFv3 does not depend only upon IPsec for authentication.The OSPFv3 Authentication Trailer was originally defined in RFC 6506. This document obsoletes RFC 6506 by providing a revised definition, including clarifications and refinements of the procedures.Security Extension for OSPFv2 When Using Manual Key ManagementThe current OSPFv2 cryptographic authentication mechanism as defined in RFCs 2328 and 5709 is vulnerable to both inter-session and intra- session replay attacks when using manual keying. Additionally, the existing cryptographic authentication mechanism does not cover the IP header. This omission can be exploited to carry out various types of attacks.This document defines changes to the authentication sequence number mechanism that will protect OSPFv2 from both inter-session and intra- session replay attacks when using manual keys for securing OSPFv2 protocol packets. Additionally, we also describe some changes in the cryptographic hash computation that will eliminate attacks resulting from OSPFv2 not protecting the IP header.The YANG 1.1 Data Modeling LanguageYANG is a data modeling language used to model configuration data, state data, Remote Procedure Calls, and notifications for network management protocols. This document describes the syntax and semantics of version 1.1 of the YANG language. YANG version 1.1 is a maintenance release of the YANG language, addressing ambiguities and defects in the original specification. There are a small number of backward incompatibilities from YANG version 1. This document also specifies the YANG mappings to the Network Configuration Protocol (NETCONF).Pseudowire Setup and Maintenance Using the Label Distribution Protocol (LDP)Layer 2 services (such as Frame Relay, Asynchronous Transfer Mode, and Ethernet) can be emulated over an MPLS backbone by encapsulating the Layer 2 Protocol Data Units (PDUs) and then transmitting them over pseudowires (PWs). It is also possible to use pseudowires to provide low-rate Time-Division Multiplexed and Synchronous Optical NETworking circuit emulation over an MPLS-enabled network. This document specifies a protocol for establishing and maintaining the pseudowires, using extensions to the Label Distribution Protocol (LDP). Procedures for encapsulating Layer 2 PDUs are specified in other documents.This document is a rewrite of RFC 4447 for publication as an Internet Standard.Ambiguity of Uppercase vs Lowercase in RFC 2119 Key WordsRFC 2119 specifies common key words that may be used in protocol specifications. This document aims to reduce the ambiguity by clarifying that only UPPERCASE usage of the key words have the defined special meanings.YANG Data Model for Key ChainsThis document describes the key chain YANG data model. Key chains are commonly used for routing protocol authentication and other applications requiring symmetric keys. A key chain is a list containing one or more elements containing a Key ID, key string, send/accept lifetimes, and the associated authentication or encryption algorithm. By properly overlapping the send and accept lifetimes of multiple key chain elements, key strings and algorithms may be gracefully updated. By representing them in a YANG data model, key distribution can be automated.Common YANG Data Types for the Routing AreaThis document defines a collection of common data types using the YANG data modeling language. These derived common types are designed to be imported by other modules defined in the routing area.Network Configuration Access Control ModelThe standardization of network configuration interfaces for use with the Network Configuration Protocol (NETCONF) or the RESTCONF protocol requires a structured and secure operating environment that promotes human usability and multi-vendor interoperability. There is a need for standard mechanisms to restrict NETCONF or RESTCONF protocol access for particular users to a preconfigured subset of all available NETCONF or RESTCONF protocol operations and content. This document defines such an access control model.This document obsoletes RFC 6536.Network Management Datastore Architecture (NMDA)Datastores are a fundamental concept binding the data models written in the YANG data modeling language to network management protocols such as the Network Configuration Protocol (NETCONF) and RESTCONF. This document defines an architectural framework for datastores based on the experience gained with the initial simpler model, addressing requirements that were not well supported in the initial model. This document updates RFC 7950.A YANG Data Model for Interface ManagementThis document defines a YANG data model for the management of network interfaces. It is expected that interface-type-specific data models augment the generic interfaces data model defined in this document. The data model includes definitions for configuration and system state (status information and counters for the collection of statistics).The YANG data model in this document conforms to the Network Management Datastore Architecture (NMDA) defined in RFC 8342.This document obsoletes RFC 7223.A YANG Data Model for Network TopologiesThis document defines an abstract (generic, or base) YANG data model for network/service topologies and inventories. The data model serves as a base model that is augmented with technology-specific details in other, more specific topology and inventory data models.A YANG Data Model for Routing PolicyThis document defines a YANG data model for configuring and managing routing policies in a vendor-neutral way. The model provides a generic routing policy framework that can be extended for specific routing protocols using the YANG 'augment' mechanism.A Common YANG Data Model for Layer 2 and Layer 3 VPNsThis document defines a common YANG module that is meant to be reused by various VPN-related modules such as Layer 3 VPN and Layer 2 VPN network models.A YANG Network Data Model for Layer 3 VPNsAs a complement to the Layer 3 Virtual Private Network Service Model (L3SM), which is used for communication between customers and service providers, this document defines an L3VPN Network Model (L3NM) that can be used for the provisioning of Layer 3 Virtual Private Network (L3VPN) services within a service provider network. The model provides a network-centric view of L3VPN services.The L3NM is meant to be used by a network controller to derive the configuration information that will be sent to relevant network devices. The model can also facilitate communication between a service orchestrator and a network controller/orchestrator.A YANG Network Data Model for Layer 2 VPNsThis document defines an L2VPN Network Model (L2NM) that can be used to manage the provisioning of Layer 2 Virtual Private Network (L2VPN) services within a network (e.g., a service provider network). The L2NM complements the L2VPN Service Model (L2SM) by providing a network-centric view of the service that is internal to a service provider. The L2NM is particularly meant to be used by a network controller to derive the configuration information that will be sent to relevant network devices.Also, this document defines a YANG module to manage Ethernet segments and the initial versions of two IANA-maintained modules that include a set of identities of BGP Layer 2 encapsulation types and pseudowire types.A YANG Network Data Model for Service Attachment Points (SAPs)This document defines a YANG data model for representing an abstract view of the provider network topology that contains the points from which its services can be attached (e.g., basic connectivity, VPN, network slices). Also, the model can be used to retrieve the points where the services are actually being delivered to customers (including peer networks).This document augments the 'ietf-network' data model defined in RFC 8345 by adding the concept of Service Attachment Points (SAPs). The SAPs are the network reference points to which network services, such as Layer 3 Virtual Private Network (L3VPN) or Layer 2 Virtual Private Network (L2VPN), can be attached. One or multiple services can be bound to the same SAP. Both User-to-Network Interface (UNI) and Network-to-Network Interface (NNI) are supported in the SAP data model.Virtual Router Redundancy Protocol (VRRP) Version 3 for IPv4 and IPv6This document defines version 3 of the Virtual Router Redundancy Protocol (VRRP) for IPv4 and IPv6. It obsoletes RFC 5798, which previously specified VRRP (version 3). RFC 5798 obsoleted RFC 3768, which specified VRRP (version 2) for IPv4. VRRP specifies an election protocol that dynamically assigns responsibility for a Virtual Router to one of the VRRP Routers on a LAN. The VRRP Router controlling the IPv4 or IPv6 address(es) associated with a Virtual Router is called the Active Router, and it forwards packets routed to these IPv4 or IPv6 addresses. Active Routers are configured with virtual IPv4 or IPv6 addresses, and Backup Routers infer the address family of the virtual addresses being advertised based on the IP protocol version. Within a VRRP Router, the Virtual Routers in each of the IPv4 and IPv6 address families are independent of one another and always treated as separate Virtual Router instances. The election process provides dynamic failover in the forwarding responsibility should the Active Router become unavailable. For IPv4, the advantage gained from using VRRP is a higher-availability default path without requiring configuration of dynamic routing or router discovery protocols on every end-host. For IPv6, the advantage gained from using VRRP for IPv6 is a quicker switchover to Backup Routers than can be obtained with standard IPv6 Neighbor Discovery mechanisms.A Common YANG Data Model for Attachment CircuitsOrangeJuniperTelefonicaNokiaHuawei TechnologiesYANG Data Models for Bearers and Attachment Circuits as a Service (ACaaS)OrangeJuniperTelefonicaNokiaHuawei TechnologiesInformative ReferencesPolicy Quality of Service (QoS) Information ModelThis document presents an object-oriented information model for representing Quality of Service (QoS) network management policies. This document is based on the IETF Policy Core Information Model and its extensions. It defines an information model for QoS enforcement for differentiated and integrated services using policy. It is important to note that this document defines an information model, which by definition is independent of any particular data storage mechanism and access protocol.The Secure Shell (SSH) Authentication ProtocolThe Secure Shell Protocol (SSH) is a protocol for secure remote login and other secure network services over an insecure network. This document describes the SSH authentication protocol framework and public key, password, and host-based client authentication methods. Additional authentication methods are described in separate documents. The SSH authentication protocol runs on top of the SSH transport layer protocol and provides a single authenticated tunnel for the SSH connection protocol. [STANDARDS-TRACK]Authentication/Confidentiality for OSPFv3This document describes means and mechanisms to provide authentication/confidentiality to OSPFv3 using an IPv6 Authentication Header/Encapsulating Security Payload (AH/ESP) extension header. [STANDARDS-TRACK]IPv6 Stateless Address AutoconfigurationThis document specifies the steps a host takes in deciding how to autoconfigure its interfaces in IP version 6. The autoconfiguration process includes generating a link-local address, generating global addresses via stateless address autoconfiguration, and the Duplicate Address Detection procedure to verify the uniqueness of the addresses on a link. [STANDARDS-TRACK]Network Configuration Protocol (NETCONF)The Network Configuration Protocol (NETCONF) defined in this document provides mechanisms to install, manipulate, and delete the configuration of network devices. It uses an Extensible Markup Language (XML)-based data encoding for the configuration data as well as the protocol messages. The NETCONF protocol operations are realized as remote procedure calls (RPCs). This document obsoletes RFC 4741. [STANDARDS-TRACK]Service Function Chaining (SFC) ArchitectureThis document describes an architecture for the specification, creation, and ongoing maintenance of Service Function Chains (SFCs) in a network. It includes architectural concepts, principles, and components used in the construction of composite services through deployment of SFCs, with a focus on those to be standardized in the IETF. This document does not propose solutions, protocols, or extensions to existing protocols.Seamless Bidirectional Forwarding Detection (S-BFD)This document defines Seamless Bidirectional Forwarding Detection (S-BFD), a simplified mechanism for using BFD with a large proportion of negotiation aspects eliminated, thus providing benefits such as quick provisioning, as well as improved control and flexibility for network nodes initiating path monitoring.This document updates RFC 5880.RESTCONF ProtocolThis document describes an HTTP-based protocol that provides a programmatic interface for accessing data defined in YANG, using the datastore concepts defined in the Network Configuration Protocol (NETCONF).YANG Data Model for L3VPN Service DeliveryThis document defines a YANG data model that can be used for communication between customers and network operators and to deliver a Layer 3 provider-provisioned VPN service. This document is limited to BGP PE-based VPNs as described in RFCs 4026, 4110, and 4364. This model is intended to be instantiated at the management system to deliver the overall service. It is not a configuration model to be used directly on network elements. This model provides an abstracted view of the Layer 3 IP VPN service configuration components. It will be up to the management system to take this model as input and use specific configuration models to configure the different network elements to deliver the service. How the configuration of network elements is done is out of scope for this document.This document obsoletes RFC 8049; it replaces the unimplementable module in that RFC with a new module with the same name that is not backward compatible. The changes are a series of small fixes to the YANG module and some clarifications to the text.YANG Tree DiagramsThis document captures the current syntax used in YANG module tree diagrams. The purpose of this document is to provide a single location for this definition. This syntax may be updated from time to time based on the evolution of the YANG language.The Transport Layer Security (TLS) Protocol Version 1.3This document specifies version 1.3 of the Transport Layer Security (TLS) protocol. TLS allows client/server applications to communicate over the Internet in a way that is designed to prevent eavesdropping, tampering, and message forgery.This document updates RFCs 5705 and 6066, and obsoletes RFCs 5077, 5246, and 6961. This document also specifies new requirements for TLS 1.2 implementations.A YANG Data Model for Layer 2 Virtual Private Network (L2VPN) Service DeliveryThis document defines a YANG data model that can be used to configure a Layer 2 provider-provisioned VPN service. It is up to a management system to take this as an input and generate specific configuration models to configure the different network elements to deliver the service. How this configuration of network elements is done is out of scope for this document.The YANG data model defined in this document includes support for point-to-point Virtual Private Wire Services (VPWSs) and multipoint Virtual Private LAN Services (VPLSs) that use Pseudowires signaled using the Label Distribution Protocol (LDP) and the Border Gateway Protocol (BGP) as described in RFCs 4761 and 6624.The YANG data model defined in this document conforms to the Network Management Datastore Architecture defined in RFC 8342.A YANG Data Model for the Routing Information Protocol (RIP)This document describes a data model for the management of the Routing Information Protocol (RIP). Both RIP version 2 and RIPng are covered. The data model includes definitions for configuration, operational state, and Remote Procedure Calls (RPCs).The YANG data model in this document conforms to the Network Management Datastore Architecture (NMDA).A Framework for Automating Service and Network Management with YANGData models provide a programmatic approach to represent services and networks. Concretely, they can be used to derive configuration information for network and service components, and state information that will be monitored and tracked. Data models can be used during the service and network management life cycle (e.g., service instantiation, service provisioning, service optimization, service monitoring, service diagnosing, and service assurance). Data models are also instrumental in the automation of network management, and they can provide closed-loop control for adaptive and deterministic service creation, delivery, and maintenance.This document describes a framework for service and network management automation that takes advantage of YANG modeling technologies. This framework is drawn from a network operator perspective irrespective of the origin of a data model; thus, it can accommodate YANG modules that are developed outside the IETF.QUIC: A UDP-Based Multiplexed and Secure TransportThis document defines the core of the QUIC transport protocol. QUIC provides applications with flow-controlled streams for structured communication, low-latency connection establishment, and network path migration. QUIC includes security measures that ensure confidentiality, integrity, and availability in a range of deployment circumstances. Accompanying documents describe the integration of TLS for key negotiation, loss detection, and an exemplary congestion control algorithm.YANG Data Model for Bidirectional Forwarding Detection (BFD)This document defines a YANG data model that can be used to configure and manage Bidirectional Forwarding Detection (BFD).The YANG modules in this document conform to the Network Management Datastore Architecture (NMDA) (RFC 8342).Route Leak Prevention and Detection Using Roles in UPDATE and OPEN MessagesRoute leaks are the propagation of BGP prefixes that violate assumptions of BGP topology relationships, e.g., announcing a route learned from one transit provider to another transit provider or a lateral (i.e., non-transit) peer or announcing a route learned from one lateral peer to another lateral peer or a transit provider. These are usually the result of misconfigured or absent BGP route filtering or lack of coordination between autonomous systems (ASes). Existing approaches to leak prevention rely on marking routes by operator configuration, with no check that the configuration corresponds to that of the External BGP (eBGP) neighbor, or enforcement of the two eBGP speakers agreeing on the peering relationship. This document enhances the BGP OPEN message to establish an agreement of the peering relationship on each eBGP session between autonomous systems in order to enforce appropriate configuration on both sides. Propagated routes are then marked according to the agreed relationship, allowing both prevention and detection of route leaks.A Framework for Network Slices in Networks Built from IETF TechnologiesThis document describes network slicing in the context of networks built from IETF technologies. It defines the term "IETF Network Slice" to describe this type of network slice and establishes the general principles of network slicing in the IETF context.The document discusses the general framework for requesting and operating IETF Network Slices, the characteristics of an IETF Network Slice, the necessary system components and interfaces, and the mapping of abstract requests to more specific technologies. The document also discusses related considerations with monitoring and security.This document also provides definitions of related terms to enable consistent usage in other IETF documents that describe or use aspects of IETF Network Slices.A YANG Data Model for Augmenting VPN Service and Network Models with Attachment CircuitsOrangeJuniperNokiaTelefonicaGuidelines for Authors and Reviewers of Documents Containing YANG Data ModelsYumaWorksOrangeHuaweiThis document provides guidelines for authors and reviewers of specifications containing YANG data models, including IANA-maintained modules. Recommendations and procedures are defined, which are intended to increase interoperability and usability of Network Configuration Protocol (NETCONF) and RESTCONF Protocol implementations that utilize YANG modules. This document obsoletes RFC 8407. Also, this document updates RFC 8126 by providing additional guidelines for writing the IANA considerations for RFCs that specify IANA-maintained modules.Work in ProgressExamplesVPLSLet us consider the example depicted in with two customer terminating points (CE1 and CE2). Let us also assume that the bearers to attach these CEs to the provider network are already in place. References to identify these bearers are shown in the figure.Topology Example
.-----. .--------------. .-----.
.---. | PE1 +===+ +===+ PE2 | .---.
| CE1+------+"450"| | MPLS | |"451"+------+ CE2|
'---' ^ '-----' | | '-----' ^ '---'
| | Core | |
Bearer:1234 '--------------' Bearer:5678
The AC service model can be used by the provider to manage and expose the ACs over existing bearers as shown in .ACs Created Using ACaaS
{
"ietf-ac-svc:attachment-circuits": {
"ac-group-profile": [
{
"name": "an-ac-profile",
"l2-connection": {
"encapsulation": {
"type": "ietf-vpn-common:dot1q",
"dot1q": {
"tag-type": "ietf-vpn-common:c-vlan",
"cvlan-id": 550
}
}
},
"service": {
"mtu": 1550,
"svc-pe-to-ce-bandwidth": {
"bandwidth": [
{
"bw-type": "ietf-vpn-common:bw-per-port",
"cir": "20480000"
}
]
},
"svc-ce-to-pe-bandwidth": {
"bandwidth": [
{
"bw-type": "ietf-vpn-common:bw-per-port",
"cir": "20480000"
}
]
},
"qos": {
"qos-profiles": {
"qos-profile": [
{
"profile": "QoS_Profile_A",
"direction": "ietf-vpn-common:both"
}
]
}
}
}
}
],
"ac": [
{
"name": "ac-1",
"description": "First attachment",
"ac-group-profile": [
"an-ac-profile"
],
"l2-connection": {
"bearer-reference": "1234"
}
},
{
"name": "ac-2",
"description": "Second attachment",
"ac-group-profile": [
"an-ac-profile"
],
"l2-connection": {
"bearer-reference": "5678"
}
}
]
}
}
The provisioned AC at PE1 can be retrieved using the AC network model as depicted in . A similar query can be used for the AC at PE2.Example of AC Network Response (Message Body)
{
"ietf-ac-ntw:ac":[
{
"name":"ac-11",
"svc-ref":"ac-1",
"peer-sap-id":[
"ce-1"
],
"status":{
"admin-status":{
"status":"ietf-vpn-common:admin-up"
},
"oper-status":{
"status":"ietf-vpn-common:op-up"
}
},
"l2-connection":{
"encapsulation":{
"encap-type":"ietf-vpn-common:dot1q",
"dot1q":{
"tag-type":"ietf-vpn-common:c-vlan",
"cvlan-id":550
}
},
"bearer-reference":"1234"
},
"service":{
"mtu":1550,
"svc-pe-to-ce-bandwidth":{
"bandwidth":[
{
"bw-type": "ietf-vpn-common:bw-per-port",
"cir":"20480000"
}
]
},
"svc-ce-to-pe-bandwidth":{
"bandwidth":[
{
"bw-type": "ietf-vpn-common:bw-per-port",
"cir":"20480000"
}
]
},
"qos":{
"qos-profiles":{
"qos-profile":[
{
"qos-profile-ref":"QoS_Profile_A",
"network-ref":"example:an-id",
"direction":"ietf-vpn-common:both"
}
]
}
}
}
}
]
}
Also, the AC network model can be used to retrieve the list of SAPs to which the ACs are bound as shown in .Example of AC Network Response to Retrieve the SAP (Message Body)
{
"ietf-sap-ntw:service":[
{
"service-type":"ietf-vpn-common:vpls",
"sap":[
{
"sap-id":"sap#1",
"peer-sap-id":[
"ce-1"
],
"description":"A parent SAP",
"attachment-interface":"GE0/6/1",
"interface-type":"ietf-sap-ntw:phy",
"role":"ietf-sap-ntw:uni",
"allows-child-saps":true,
"sap-status":{
"status":"ietf-vpn-common:op-up"
}
},
{
"sap-id":"sap#11",
"description":"A child SAP",
"parent-termination-point":"GE0/6/4",
"attachment-interface":"GE0/6/4.2",
"interface-type":"ietf-sap-ntw:logical",
"encapsulation-type":"ietf-vpn-common:vlan-type",
"sap-status":{
"status":"ietf-vpn-common:op-up"
},
"ietf-ac-ntw:ac":[
{
"ac-ref":"ac-1",
"node-ref":"example:pe2",
"network-ref":"example:an-id"
}
]
}
]
}
]
}
Parent ACIn reference to the topology depicted in , PE2 has a SAP that terminates an AC with two peer SAPs (CE2 and CE5). In order to control data that is specific to each of these peer SAPs over the same AC, Child ACs can be instantiated as depicted in .Example of Child ACs
{
"ietf-ac-ntw:ac":[
{
"name":"ac-1",
"peer-sap-id":[
"CE2",
"CE5"
],
"status":{
"admin-status":{
"status":"ietf-vpn-common:admin-up"
},
"oper-status":{
"status":"ietf-vpn-common:op-up"
}
},
"l2-connection":{
"encapsulation":{
"encap-type":"ietf-vpn-common:dot1q",
"dot1q":{
"tag-type":"ietf-vpn-common:c-vlan",
"cvlan-id":550
}
},
"bearer-reference":"1234"
}
},
{
"name":"ac-1-to-ce2",
"parent-ref":{
"ac-ref":"ac-1",
"node-ref":"example:pe2",
"network-ref":"example:an-id"
},
"peer-sap-id":[
"CE2"
]
},
{
"name":"ac-1-to-ce5",
"parent-ref":{
"ac-ref":"ac-1",
"node-ref":"example:pe2",
"network-ref":"example:an-id"
},
"peer-sap-id":[
"CE5"
]
}
]
}
shows how to bind the Parent AC to a SAP.Example of Binding Parent ACs to SAPs
{
"ietf-sap-ntw:service":[
{
"service-type":"ietf-vpn-common:l3vpn",
"sap":[
{
"sap-id":"sap#14587",
"description":"A SAP",
"parent-termination-point":"GE0/6/4",
"attachment-interface":"GE0/6/4.2",
"interface-type":"ietf-sap-ntw:logical",
"encapsulation-type":"ietf-vpn-common:vlan-type",
"sap-status":{
"status":"ietf-vpn-common:op-up"
},
"ietf-ac-ntw:ac":[
{
"ac-ref":"ac-1",
"node-ref":"example:pe2",
"network-ref":"example:an-id"
}
]
}
]
}
]
}
Full Tree
module: ietf-ac-ntw
augment /nw:networks/nw:network:
+--rw specific-provisioning-profiles
| +--rw valid-provider-identifiers
| +--rw encryption-profile-identifier* [id]
| | +--rw id string
| +--rw qos-profile-identifier* [id]
| | +--rw id string
| +--rw failure-detection-profile-identifier* [id]
| | +--rw id string
| +--rw forwarding-profile-identifier* [id]
| | +--rw id string
| +--rw routing-profile-identifier* [id]
| +--rw id string
+--rw ac-profile* [name]
+--rw name string
+--rw routing-protocols
| +--rw routing-protocol* [id]
| +--rw id string
| +--rw type? identityref
| +--rw bgp {vpn-common:rtg-bgp}?
| | +--rw peer-groups
| | +--rw peer-group* [name]
| | +--rw name string
| | +--rw description? string
| | +--rw apply-policy
| | | +--rw import-policy* leafref
| | | +--rw default-import-policy?
| | | | default-policy-type
| | | +--rw export-policy* leafref
| | | +--rw default-export-policy?
| | | default-policy-type
| | +--rw local-as? inet:as-number
| | +--rw peer-as inet:as-number
| | +--rw address-family? identityref
| | +--rw role? identityref
| | +--rw multihop? uint8
| | +--rw as-override? boolean
| | +--rw allow-own-as? uint8
| | +--rw prepend-global-as? boolean
| | +--rw send-default-route? boolean
| | +--rw site-of-origin?
| | | rt-types:route-origin
| | +--rw ipv6-site-of-origin?
| | | rt-types:ipv6-route-origin
| | +--rw redistribute-connected* [address-family]
| | | +--rw address-family identityref
| | | +--rw enabled? boolean
| | +--rw bgp-max-prefix
| | | +--rw max-prefix? uint32
| | | +--rw warning-threshold? decimal64
| | | +--rw violate-action? enumeration
| | | +--rw restart-timer? uint32
| | +--rw bgp-timers
| | +--rw keepalive? uint16
| | +--rw hold-time? uint16
| +--rw ospf {vpn-common:rtg-ospf}?
| | +--rw address-family? identityref
| | +--rw area-id yang:dotted-quad
| | +--rw metric? uint16
| | +--rw max-lsa? uint32
| | +--rw passive? boolean
| +--rw isis {vpn-common:rtg-isis}?
| | +--rw address-family? identityref
| | +--rw area-address area-address
| | +--rw level? identityref
| | +--rw metric? uint32
| | +--rw passive? boolean
| +--rw rip {vpn-common:rtg-rip}?
| | +--rw address-family? identityref
| | +--rw timers
| | | +--rw update-interval? uint16
| | | +--rw invalid-interval? uint16
| | | +--rw holddown-interval? uint16
| | | +--rw flush-interval? uint16
| | +--rw default-metric? uint8
| +--rw vrrp {vpn-common:rtg-vrrp}?
| +--rw address-family? identityref
| +--rw ping-reply? boolean
+--rw oam
+--rw bfd {vpn-common:bfd}?
+--rw session-type? identityref
+--rw desired-min-tx-interval? uint32
+--rw required-min-rx-interval? uint32
+--rw local-multiplier? uint8
+--rw holdtime? uint32
augment /nw:networks/nw:network/nw:node:
+--rw ac* [name]
+--rw name string
+--rw svc-ref? ac-svc:attachment-circuit-reference
+--rw profile* [ac-profile-ref]
| +--rw ac-profile-ref leafref
| +--rw network-ref? -> /nw:networks/network/network-id
+--rw parent-ref
| +--rw ac-ref? leafref
| +--rw node-ref? leafref
| +--rw network-ref? -> /nw:networks/network/network-id
+--ro child-ref
| +--ro ac-ref* leafref
| +--ro node-ref? leafref
| +--ro network-ref? -> /nw:networks/network/network-id
+--rw peer-sap-id* string
+--rw group* [group-id]
| +--rw group-id string
| +--rw precedence? identityref
+--rw status
| +--rw admin-status
| | +--rw status? identityref
| | +--ro last-change? yang:date-and-time
| +--ro oper-status
| +--ro status? identityref
| +--ro last-change? yang:date-and-time
+--rw description? string
+--rw l2-connection {ac-common:layer2-ac}?
| +--rw encapsulation
| | +--rw encap-type? identityref
| | +--rw dot1q
| | | +--rw tag-type? identityref
| | | +--rw cvlan-id? uint16
| | | +--rw tag-operations
| | | +--rw (op-choice)?
| | | | +--:(pop)
| | | | | +--rw pop? empty
| | | | +--:(push)
| | | | | +--rw push? empty
| | | | +--:(translate)
| | | | +--rw translate? empty
| | | +--rw tag-1? dot1q-types:vlanid
| | | +--rw tag-1-type? dot1q-types:dot1q-tag-type
| | | +--rw tag-2? dot1q-types:vlanid
| | | +--rw tag-2-type? dot1q-types:dot1q-tag-type
| | +--rw priority-tagged
| | | +--rw tag-type? identityref
| | +--rw qinq
| | +--rw tag-type? identityref
| | +--rw svlan-id? uint16
| | +--rw cvlan-id? uint16
| | +--rw tag-operations
| | +--rw (op-choice)?
| | | +--:(pop)
| | | | +--rw pop? uint8
| | | +--:(push)
| | | | +--rw push? empty
| | | +--:(translate)
| | | +--rw translate? uint8
| | +--rw tag-1? dot1q-types:vlanid
| | +--rw tag-1-type? dot1q-types:dot1q-tag-type
| | +--rw tag-2? dot1q-types:vlanid
| | +--rw tag-2-type? dot1q-types:dot1q-tag-type
| +--rw (l2-service)?
| | +--:(l2-tunnel-service)
| | | +--rw l2-tunnel-service
| | | +--rw type? identityref
| | | +--rw pseudowire
| | | | +--rw vcid? uint32
| | | | +--rw far-end? union
| | | +--rw vpls
| | | | +--rw vcid? uint32
| | | | +--rw far-end* union
| | | +--rw vxlan
| | | +--rw vni-id? uint32
| | | +--rw peer-mode? identityref
| | | +--rw peer-ip-address* inet:ip-address
| | +--:(l2vpn)
| | +--rw l2vpn-id? vpn-common:vpn-id
| +--rw l2-termination-point? string
| +--rw local-bridge-reference? string
| +--rw bearer-reference? string
| | {ac-common:server-assigned-reference}?
| +--rw lag-interface {vpn-common:lag-interface}?
| +--rw lag-interface-id? string
| +--rw member-link-list
| +--rw member-link* [name]
| +--rw name string
+--rw ip-connection {ac-common:layer3-ac}?
| +--rw l3-termination-point? string
| +--rw ipv4 {vpn-common:ipv4}?
| | +--rw local-address?
| | | inet:ipv4-address
| | +--rw prefix-length? uint8
| | +--rw address-allocation-type?
| | | identityref
| | +--rw (allocation-type)?
| | +--:(dynamic)
| | | +--rw (address-assign)?
| | | | +--:(number)
| | | | | +--rw number-of-dynamic-address? uint16
| | | | +--:(explicit)
| | | | +--rw customer-addresses
| | | | +--rw address-pool* [pool-id]
| | | | +--rw pool-id string
| | | | +--rw start-address
| | | | | inet:ipv4-address
| | | | +--rw end-address?
| | | | inet:ipv4-address
| | | +--rw (provider-dhcp)?
| | | | +--:(dhcp-service-type)
| | | | | +--rw dhcp-service-type?
| | | | | enumeration
| | | | +--:(service-type)
| | | | +--rw (service-type)?
| | | | +--:(relay)
| | | | +--rw server-ip-address*
| | | | inet:ipv4-address
| | | +--rw (dhcp-relay)?
| | | +--:(customer-dhcp-servers)
| | | +--rw customer-dhcp-servers
| | | +--rw server-ip-address*
| | | inet:ipv4-address
| | +--:(static-addresses)
| | +--rw address* [address-id]
| | +--rw address-id string
| | +--rw customer-address?
| | | inet:ipv4-address
| | +--rw failure-detection-profile-ref? leafref
| | +--rw network-ref?
| | -> /nw:networks/network/network-id
| +--rw ipv6 {vpn-common:ipv6}?
| +--rw local-address?
| | inet:ipv6-address
| +--rw prefix-length? uint8
| +--rw address-allocation-type?
| | identityref
| +--rw (allocation-type)?
| +--:(dynamic)
| | +--rw (address-assign)?
| | | +--:(number)
| | | | +--rw number-of-dynamic-address? uint16
| | | +--:(explicit)
| | | +--rw customer-addresses
| | | +--rw address-pool* [pool-id]
| | | +--rw pool-id string
| | | +--rw start-address
| | | | inet:ipv6-address
| | | +--rw end-address?
| | | inet:ipv6-address
| | +--rw (provider-dhcp)?
| | | +--:(dhcp-service-type)
| | | | +--rw dhcp-service-type?
| | | | enumeration
| | | +--:(service-type)
| | | +--rw (service-type)?
| | | +--:(relay)
| | | +--rw server-ip-address*
| | | inet:ipv6-address
| | +--rw (dhcp-relay)?
| | +--:(customer-dhcp-servers)
| | +--rw customer-dhcp-servers
| | +--rw server-ip-address*
| | inet:ipv6-address
| +--:(static-addresses)
| +--rw address* [address-id]
| +--rw address-id string
| +--rw customer-address?
| | inet:ipv6-address
| +--rw failure-detection-profile-ref? leafref
| +--rw network-ref?
| -> /nw:networks/network/network-id
+--rw routing-protocols
| +--rw routing-protocol* [id]
| +--rw id string
| +--rw type? identityref
| +--rw routing-profile* [routing-profile-ref]
| | +--rw routing-profile-ref leafref
| | +--rw network-ref?
| | | -> /nw:networks/network/network-id
| | +--rw type? identityref
| +--rw static
| | +--rw cascaded-lan-prefixes
| | +--rw ipv4-lan-prefix* [lan next-hop]
| | | {vpn-common:ipv4}?
| | | +--rw lan inet:ipv4-prefix
| | | +--rw lan-tag? string
| | | +--rw next-hop union
| | | +--rw metric? uint32
| | | +--rw bfd {vpn-common:bfd}?
| | | | +--rw enabled?
| | | | | boolean
| | | | +--rw failure-detection-profile-ref?
| | | | | leafref
| | | | +--rw network-ref?
| | | | -> /nw:networks/network/network-id
| | | +--rw preference? uint32
| | | +--rw status
| | | +--rw admin-status
| | | | +--rw status? identityref
| | | | +--ro last-change? yang:date-and-time
| | | +--ro oper-status
| | | +--ro status? identityref
| | | +--ro last-change? yang:date-and-time
| | +--rw ipv6-lan-prefix* [lan next-hop]
| | {vpn-common:ipv6}?
| | +--rw lan inet:ipv6-prefix
| | +--rw lan-tag? string
| | +--rw next-hop union
| | +--rw metric? uint32
| | +--rw bfd {vpn-common:bfd}?
| | | +--rw enabled?
| | | | boolean
| | | +--rw failure-detection-profile-ref?
| | | | leafref
| | | +--rw network-ref?
| | | -> /nw:networks/network/network-id
| | +--rw preference? uint32
| | +--rw status
| | +--rw admin-status
| | | +--rw status? identityref
| | | +--ro last-change? yang:date-and-time
| | +--ro oper-status
| | +--ro status? identityref
| | +--ro last-change? yang:date-and-time
| +--rw bgp {vpn-common:rtg-bgp}?
| | +--rw peer-groups
| | | +--rw peer-group* [name]
| | | +--rw name string
| | | +--rw local-address? union
| | | +--rw description? string
| | | +--rw apply-policy
| | | | +--rw import-policy* leafref
| | | | +--rw default-import-policy?
| | | | | default-policy-type
| | | | +--rw export-policy* leafref
| | | | +--rw default-export-policy?
| | | | default-policy-type
| | | +--rw local-as? inet:as-number
| | | +--rw peer-as inet:as-number
| | | +--rw address-family? identityref
| | | +--rw role? identityref
| | | +--rw multihop? uint8
| | | +--rw as-override? boolean
| | | +--rw allow-own-as? uint8
| | | +--rw prepend-global-as? boolean
| | | +--rw send-default-route? boolean
| | | +--rw site-of-origin?
| | | | rt-types:route-origin
| | | +--rw ipv6-site-of-origin?
| | | | rt-types:ipv6-route-origin
| | | +--rw redistribute-connected* [address-family]
| | | | +--rw address-family identityref
| | | | +--rw enabled? boolean
| | | +--rw bgp-max-prefix
| | | | +--rw max-prefix? uint32
| | | | +--rw warning-threshold? decimal64
| | | | +--rw violate-action? enumeration
| | | | +--rw restart-timer? uint32
| | | +--rw bgp-timers
| | | | +--rw keepalive? uint16
| | | | +--rw hold-time? uint16
| | | +--rw authentication
| | | +--rw enabled? boolean
| | | +--rw keying-material
| | | +--rw (option)?
| | | +--:(ao)
| | | | +--rw enable-ao? boolean
| | | | +--rw ao-keychain?
| | | | key-chain:key-chain-ref
| | | +--:(md5)
| | | | +--rw md5-keychain?
| | | | key-chain:key-chain-ref
| | | +--:(explicit)
| | | +--rw key-id? uint32
| | | +--rw key? string
| | | +--rw crypto-algorithm?
| | | identityref
| | +--rw neighbor* [remote-address]
| | +--rw remote-address inet:ip-address
| | +--rw local-address? union
| | +--rw peer-group?
| | | -> ../../peer-groups/peer-group/name
| | +--rw description? string
| | +--rw apply-policy
| | | +--rw import-policy* leafref
| | | +--rw default-import-policy?
| | | | default-policy-type
| | | +--rw export-policy* leafref
| | | +--rw default-export-policy?
| | | default-policy-type
| | +--rw local-as? inet:as-number
| | +--rw peer-as inet:as-number
| | +--rw address-family? identityref
| | +--rw role? identityref
| | +--rw multihop? uint8
| | +--rw as-override? boolean
| | +--rw allow-own-as? uint8
| | +--rw prepend-global-as? boolean
| | +--rw send-default-route? boolean
| | +--rw site-of-origin?
| | | rt-types:route-origin
| | +--rw ipv6-site-of-origin?
| | | rt-types:ipv6-route-origin
| | +--rw redistribute-connected* [address-family]
| | | +--rw address-family identityref
| | | +--rw enabled? boolean
| | +--rw bgp-max-prefix
| | | +--rw max-prefix? uint32
| | | +--rw warning-threshold? decimal64
| | | +--rw violate-action? enumeration
| | | +--rw restart-timer? uint32
| | +--rw bgp-timers
| | | +--rw keepalive? uint16
| | | +--rw hold-time? uint16
| | +--rw bfd {vpn-common:bfd}?
| | | +--rw enabled? boolean
| | | +--rw failure-detection-profile-ref? leafref
| | | +--rw network-ref?
| | | -> /nw:networks/network/network-id
| | +--rw authentication
| | | +--rw enabled? boolean
| | | +--rw keying-material
| | | +--rw (option)?
| | | +--:(ao)
| | | | +--rw enable-ao? boolean
| | | | +--rw ao-keychain?
| | | | key-chain:key-chain-ref
| | | +--:(md5)
| | | | +--rw md5-keychain?
| | | | key-chain:key-chain-ref
| | | +--:(explicit)
| | | +--rw key-id? uint32
| | | +--rw key? string
| | | +--rw crypto-algorithm? identityref
| | +--rw status
| | +--rw admin-status
| | | +--rw status? identityref
| | | +--ro last-change? yang:date-and-time
| | +--ro oper-status
| | +--ro status? identityref
| | +--ro last-change? yang:date-and-time
| +--rw ospf {vpn-common:rtg-ospf}?
| | +--rw address-family? identityref
| | +--rw area-id yang:dotted-quad
| | +--rw metric? uint16
| | +--rw sham-links {vpn-common:rtg-ospf-sham-link}?
| | | +--rw sham-link* [target-site]
| | | +--rw target-site string
| | | +--rw metric? uint16
| | +--rw max-lsa? uint32
| | +--rw passive? boolean
| | +--rw authentication
| | | +--rw enabled? boolean
| | | +--rw keying-material
| | | +--rw (option)?
| | | +--:(auth-key-chain)
| | | | +--rw key-chain?
| | | | key-chain:key-chain-ref
| | | +--:(auth-key-explicit)
| | | +--rw key-id? uint32
| | | +--rw key? string
| | | +--rw crypto-algorithm? identityref
| | +--rw status
| | +--rw admin-status
| | | +--rw status? identityref
| | | +--ro last-change? yang:date-and-time
| | +--ro oper-status
| | +--ro status? identityref
| | +--ro last-change? yang:date-and-time
| +--rw isis {vpn-common:rtg-isis}?
| | +--rw address-family? identityref
| | +--rw area-address area-address
| | +--rw level? identityref
| | +--rw metric? uint32
| | +--rw passive? boolean
| | +--rw authentication
| | | +--rw enabled? boolean
| | | +--rw keying-material
| | | +--rw (option)?
| | | +--:(auth-key-chain)
| | | | +--rw key-chain?
| | | | key-chain:key-chain-ref
| | | +--:(auth-key-explicit)
| | | +--rw key-id? uint32
| | | +--rw key? string
| | | +--rw crypto-algorithm? identityref
| | +--rw status
| | +--rw admin-status
| | | +--rw status? identityref
| | | +--ro last-change? yang:date-and-time
| | +--ro oper-status
| | +--ro status? identityref
| | +--ro last-change? yang:date-and-time
| +--rw rip {vpn-common:rtg-rip}?
| | +--rw address-family? identityref
| | +--rw timers
| | | +--rw update-interval? uint16
| | | +--rw invalid-interval? uint16
| | | +--rw holddown-interval? uint16
| | | +--rw flush-interval? uint16
| | +--rw default-metric? uint8
| | +--rw authentication
| | | +--rw enabled? boolean
| | | +--rw keying-material
| | | +--rw (option)?
| | | +--:(auth-key-chain)
| | | | +--rw key-chain?
| | | | key-chain:key-chain-ref
| | | +--:(auth-key-explicit)
| | | +--rw key? string
| | | +--rw crypto-algorithm? identityref
| | +--rw status
| | +--rw admin-status
| | | +--rw status? identityref
| | | +--ro last-change? yang:date-and-time
| | +--ro oper-status
| | +--ro status? identityref
| | +--ro last-change? yang:date-and-time
| +--rw vrrp {vpn-common:rtg-vrrp}?
| +--rw address-family? identityref
| +--rw vrrp-group? uint8
| +--rw backup-peer? inet:ip-address
| +--rw virtual-ip-address* inet:ip-address
| +--rw priority? uint8
| +--rw ping-reply? boolean
| +--rw status
| +--rw admin-status
| | +--rw status? identityref
| | +--ro last-change? yang:date-and-time
| +--ro oper-status
| +--ro status? identityref
| +--ro last-change? yang:date-and-time
+--rw oam
| +--rw bfd {vpn-common:bfd}?
| +--rw session* [dest-addr]
| +--rw dest-addr inet:ip-address
| +--rw source-address? union
| +--rw failure-detection-profile-ref? leafref
| +--rw network-ref?
| | -> /nw:networks/network/network-id
| +--rw session-type? identityref
| +--rw desired-min-tx-interval? uint32
| +--rw required-min-rx-interval? uint32
| +--rw local-multiplier? uint8
| +--rw holdtime? uint32
| +--rw authentication!
| | +--rw key-chain? key-chain:key-chain-ref
| | +--rw meticulous? boolean
| +--rw status
| +--rw admin-status
| | +--rw status? identityref
| | +--ro last-change? yang:date-and-time
| +--ro oper-status
| +--ro status? identityref
| +--ro last-change? yang:date-and-time
+--rw security
| +--rw encryption {vpn-common:encryption}?
| | +--rw enabled? boolean
| | +--rw layer? enumeration
| +--rw encryption-profile
| +--rw (profile)?
| +--:(provider-profile)
| | +--rw encryption-profile-ref? leafref
| | +--rw network-ref?
| | -> /nw:networks/network/network-id
| +--:(customer-profile)
| +--rw customer-key-chain?
| key-chain:key-chain-ref
+--rw service
+--rw mtu? uint32
+--rw svc-pe-to-ce-bandwidth {vpn-common:inbound-bw}?
| +--rw bandwidth* [bw-type]
| +--rw bw-type identityref
| +--rw (type)?
| +--:(per-cos)
| | +--rw cos* [cos-id]
| | +--rw cos-id uint8
| | +--rw cir? uint64
| | +--rw cbs? uint64
| | +--rw eir? uint64
| | +--rw ebs? uint64
| | +--rw pir? uint64
| | +--rw pbs? uint64
| +--:(other)
| +--rw cir? uint64
| +--rw cbs? uint64
| +--rw eir? uint64
| +--rw ebs? uint64
| +--rw pir? uint64
| +--rw pbs? uint64
+--rw svc-ce-to-pe-bandwidth {vpn-common:outbound-bw}?
| +--rw bandwidth* [bw-type]
| +--rw bw-type identityref
| +--rw (type)?
| +--:(per-cos)
| | +--rw cos* [cos-id]
| | +--rw cos-id uint8
| | +--rw cir? uint64
| | +--rw cbs? uint64
| | +--rw eir? uint64
| | +--rw ebs? uint64
| | +--rw pir? uint64
| | +--rw pbs? uint64
| +--:(other)
| +--rw cir? uint64
| +--rw cbs? uint64
| +--rw eir? uint64
| +--rw ebs? uint64
| +--rw pir? uint64
| +--rw pbs? uint64
+--rw qos {vpn-common:qos}?
| +--rw qos-profiles
| +--rw qos-profile* [qos-profile-ref]
| +--rw qos-profile-ref leafref
| +--rw network-ref?
| | -> /nw:networks/network/network-id
| +--rw direction? identityref
+--rw access-control-list
+--rw acl-profiles
+--rw acl-profile* [forwarding-profile-ref]
+--rw forwarding-profile-ref leafref
+--rw network-ref?
-> /nw:networks/network/network-id
augment /nw:networks/nw:network/nw:node/sap:service/sap:sap:
+--rw ac* [ac-ref]
+--rw ac-ref leafref
+--rw node-ref? leafref
+--rw network-ref? -> /nw:networks/network/network-id
AcknowledgmentsThis document builds on and .Thanks to for the review and comments.Thanks to for the YANG Doctors
review, for an early RTGDIR review,
for the RTGDIR review, for the OPSDIR review, and for the SECDIR
review.Thanks to for the shepherd review.Thanks for for the AD review.ContributorsNokiavictor.lopez@nokia.comRibbon CommunicationsIvan.Bykov@rbbn.comHuaweibill.wu@huawei.comKDDIke-oogaki@kddi.comVodafoneluis-angel.munoz@vodafone.comAuthors' AddressesOrangemohamed.boucadair@orange.comJuniperrroberts@juniper.netTelefonicaoscar.gonzalezdedios@telefonica.comNokiasamier.barguil_giraldo@nokia.comHuawei Technologieslana.wubo@huawei.com