| Internet-Draft | ACSM | January 2023 |
| Boucadair, et al. | Expires 24 July 2023 | [Page] |
- Workgroup:
- OPSAWG
- Internet-Draft:
- draft-boro-opsawg-teas-attachment-circuit-01
- Published:
- Intended Status:
- Standards Track
- Expires:
YANG Service Data Models for Attachment Circuits
Abstract
This document specifies a YANG service data model for Attachment Circuits (ACs). The model can be used for the provisioning of ACs prior or during service provisioning (e.g., Network Slice Service). The document specifies also a module that updates other service and network modules with the required information to bind specific services to ACs that are created using the AC service model.¶
The AC service model is designed with the intent to be reusable. Whether a service model reuses structures defined in the AC service model or simply include an AC reference is a design choice of these service models. Relying upon the AC model to manage ACs over which a service is delivered has the merit to decorrelate the management of a service vs. upgrade the AC components to reflect recent AC technologies or features.¶
Each AC is identified with a unique identifier within a domain. The mapping between this AC and a PE that terminates the AC is hidden to the application/customer that makes use of the AC service model. Such an information is internal to the network controller. Thus, the details about the (network node-specific) attachment interfaces are not exposed in this service model.¶
Discussion Venues
This note is to be removed before publishing as an RFC.¶
Discussion of this document takes place on the Operations and Management Area Working Group Working Group mailing list (opsawg@ietf.org), which is archived at https://mailarchive.ietf.org/arch/browse/opsawg/.¶
Source for this draft and an issue tracker can be found at https://github.com/boucadair/attachment-circuit-model.¶
Status of This Memo
This Internet-Draft is submitted in full conformance with the provisions of BCP 78 and BCP 79.¶
Internet-Drafts are working documents of the Internet Engineering Task Force (IETF). Note that other groups may also distribute working documents as Internet-Drafts. The list of current Internet-Drafts is at https://datatracker.ietf.org/drafts/current/.¶
Internet-Drafts are draft documents valid for a maximum of six months and may be updated, replaced, or obsoleted by other documents at any time. It is inappropriate to use Internet-Drafts as reference material or to cite them other than as "work in progress."¶
This Internet-Draft will expire on 24 July 2023.¶
Copyright Notice
Copyright (c) 2023 IETF Trust and the persons identified as the document authors. All rights reserved.¶
This document is subject to BCP 78 and the IETF Trust's Legal Provisions Relating to IETF Documents (https://trustee.ietf.org/license-info) in effect on the date of publication of this document. Please review these documents carefully, as they describe your rights and restrictions with respect to this document. Code Components extracted from this document must include Revised BSD License text as described in Section 4.e of the Trust Legal Provisions and are provided without warranty as described in the Revised BSD License.¶
1. Introduction
This document specifies a YANG service data model for managing attachment circuits (ACs) that are exposed by a network to its customers (e.g., an enterprise site, a network function, a hosting infrastructure, a peer network provider) . The model can be used for the provisioning of ACs prior or during advanced service provisioning (e.g., Network Slice Service).¶
Also, the model is designed with the intent to be reusable. Whether a service model reuses structures defined in the AC service model or simply includes an AC reference (that was communicated during AC instantiation) is a design choice of these service models. Relying upon the AC service model to manage ACs over which services are delivered has the merit to decorrelate the management of a service vs. upgrade the AC components to reflect recent AC technologies or new features (e.g., new encryption scheme, additional routing protocol).¶
Each AC is identified with a unique identifier within a domain. From a network provider standpoint, an AC can be bound to a single or multiple SAPs [I-D.ietf-opsawg-sap]. Likewise, a SAP can be bound to one or multiple ACs. However, the mapping between this AC and a local PE that terminates the AC is hidden to the application that makes use of the AC service model. This information is internal to the Network controller. As such, the details about the (node-specific) attachment interfaces are not exposed in this service model.¶
The document specifies also a module (Appendix B) that updates other service and network modules with the required informaiton to bind specific services to ACs that are created using the AC service model.¶
The YANG data model in this document conforms to the Network Management Datastore Architecture (NMDA) defined in [RFC8342].¶
2. 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 [RFC2119] [RFC8174] when, and only when, they appear in all capitals, as shown here.¶
The meanings of the symbols in the YANG tree diagrams are defined in [RFC8340].¶
This document uses the following terms:¶
- Network controller:
-
Denotes a functional entity responsible for the management of the service provider network.¶
- Service orchestrator:
-
Refers to a functional entity that interacts with the customer of a network service. The service orchestrator is typically responsible for the attachment circuits, the Provider Edge (PE) selection, and requesting the activation of the requested service to a network controller.¶
- Service provider network:
-
A network that is able to provide network services (e.g., Network Slice Services).¶
- Service provider:
-
A service provider that offers network services (e.g., Network Slice Services).¶
3. Sample Uses of the Attachment Circuit Data Models
Figure 1 depictes two target topology flavors that may host ACs. A CE may be a physical node or a logical entity. The same AC request may include one or multiple ACs that may belong to one or both of these flavors. For the sake of simplfying the illustration, only a subset of these ACs is shown in Figure 1.¶
CEs may be dedicated to one single service or host multiple services (e.g., service functions [RFC7665]). A single AC (as seen by a network provider) may be bound to one or multiple peer SAPs.¶
3.1. Separate AC Provisioning vs. Actual Service Provisioning
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. For example, the same attachment circuit may be used to host multiple services. 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 the request a base attachment circuit to be put in place, and then refer to that base AC when requesting services that are bound to that AC.¶
Figure 2 shows the positioning of the AC service model is the overall service delivery process.¶
+---------------+
| Customer |
+-------+-------+
Customer Service Model |
e.g., slice-svc, ac-svc |
+-------+-------+
| Service |
| Orchestration |
+-------+-------+
Network Model |
e.g., l3vpn-ntw, sap, ac-ntw |
+-------+-------+
| Network |
| Orchestration |
+-------+-------+
Network Configuration Model |
+-----------+-----------+
| |
+--------+------+ +--------+------+
| Domain | | Domain |
| Orchestration | | Orchestration |
+---+-----------+ +--------+------+
Device | | |
Configuration | | |
Model | | |
+----+----+ | |
| Config | | |
| Manager | | |
+----+----+ | |
| | |
| NETCONF/CLI..................
| | |
3.2. Examples
This section includes a non-exhaustive list of examples to illustrate the use of the AC service model.¶
3.2.1. Request A New Bearer
An example of a request message body to create a bearer is shown in Figure 3.¶
{
"ietf-ac-svc:bearers": {
"bearer": [
{
"id": "an-identifier",
"description": "A bearer example",
"customer-device": {
"device-id": "CE_X_SITE_Y",
"requested-type": "ietf-ac-svc:ethernet"
}
}
]
}
}
A bearer-reference is then generated by the controller for this bearer. Figure 4 shows the example of a response message body that is sent by the controller to reply to a GET request:¶
{
"ietf-ac-svc:bearers": {
"bearer": [
{
"id": "an-identifier",
"description": "A bearer example",
"customer-device": {
"device-id": "CE_X_SITE_Y",
"requested-type": "ietf-ac-svc:ethernet"
},
"bearer-reference": "line-156"
}
]
}
}
3.2.2. Request An AC over An Existing Bearer
An example of a request message body to create a simple AC over an existing bearer is shown in Figure 5. The bearer reference is assumed to be known to both the customer and the network provider. Such a reference can be retrieved, e.g., following the example described in Section 3.2.1.¶
{
"ietf-ac-svc:attachment-circuits": {
"ac": [
{
"name": "ac4585",
"description": "An AC on an existing bearer",
"requested-ac-start": "2023-12-12T05:00:00.00Z",
"l2-connection": {
"encapsulation": {
"type": "ietf-vpn-common:dot1q",
"dot1q": {
"tag-type": "ietf-vpn-common:c-vlan",
"cvlan-id": 550
}
},
"bearer-reference": "line-156"
}
}
]
}
}
3.2.3. Request An AC for a Knwon Peer SAP
An example of a request to create a simple AC, when the peer SAP is known, is shown in Figure 6. In this example, the peer SAP identifier points to an identifier of a service function. The (topological) location of that service function is assumed to be known to the network controller. For example, this can be determined as part of an on-demand procedure to instantiate a service function in a cloud. That instantiated service function can be granted a connectivity service via the provider network.¶
{
"ietf-ac-svc:attachment-circuits": {
"ac": [
{
"name": "ac4585",
"description": "An AC on an existing bearer",
"requested-ac-start": "2023-12-12T05:00:00.00Z",
"peer-sap-id": [
"nf-termination-ip"
],
"l2-connection": {
"encapsulation": {
"type": "ietf-vpn-common:dot1q",
"dot1q": {
"tag-type": "ietf-vpn-common:c-vlan",
"cvlan-id": 550
}
}
}
}
]
}
}
3.2.4. One CE, Two ACs
Lets consider the example of an eNodeB (CE) that is directly connected to the access routers of the mobile backhaul (see Figure 7). In this example, two ACs are needed to service the eNodeB.¶
An example of a request to create the ACs to service the eNodeB is shown in Figure 8. This example assumes that static addressing is used for both ACs.¶
{
"ietf-ac-svc:attachment-circuits": {
"ac": [
{
"name": "ac1",
"description": "a first ac with a same peer node",
"l2-connection": {
"encapsulation": {
"type": "ietf-vpn-common:dot1q",
"dot1q": {
"cvlan-id": 1
}
},
"bearer-reference": "line-156"
},
"ip-connection": {
"ipv4": {
"local-address": "192.0.2.1",
"prefix-length": 30,
"address": [
{
"address-id": "1",
"customer-address": "192.0.2.2"
}
]
},
"ipv6": {
"local-address": "2001:db8::1",
"prefix-length": 64,
"address": [
{
"address-id": "1",
"customer-address": "2001:db8::2"
}
]
}
},
"routing-protocols": {
"routing-protocol": [
{
"id": "1",
"type": "ietf-vpn-common:direct-routing"
}
]
}
},
{
"name": "ac2",
"description": "a second ac with a same peer node",
"l2-connection": {
"encapsulation": {
"type": "ietf-vpn-common:dot1q",
"dot1q": {
"cvlan-id": 2
}
},
"bearer-reference": "line-156"
},
"ip-connection": {
"ipv4": {
"local-address": "192.0.2.1",
"prefix-length": 30,
"address": [
{
"address-id": "1",
"customer-address": "192.0.2.2"
}
]
},
"ipv6": {
"local-address": "2001:db8::1",
"prefix-length": 64,
"address": [
{
"address-id": "1",
"customer-address": "2001:db8::2"
}
]
}
},
"routing-protocols": {
"routing-protocol": [
{
"id": "1",
"type": "ietf-vpn-common:direct-routing"
}
]
}
}
]
}
}
3.2.5. Illustrate the Use of Global Profiles
An example of a request to create two ACs to service the same CE on the same link is shown in Figure 9. Unlike Figure 8, this example factorizes some of the redundant data.¶
{
"ietf-ac-svc:attachment-circuits": {
"ac-global-profile": [
{
"id": "simple-profile",
"l2-connection": {
"encapsulation": {
"type": "ietf-vpn-common:dot1q"
}
},
"routing-protocols": {
"routing-protocol": [
{
"id": "1",
"type": "ietf-vpn-common:direct-routing"
}
]
}
}
],
"ac": [
{
"name": "ac1",
"description": "a first ac with a same peer node",
"ac-global-profile": ["simple-profile"],
"l2-connection": {
"encapsulation": {
"dot1q": {
"cvlan-id": 1
}
},
"bearer-reference": "line-156"
},
"ip-connection": {
"ipv4": {
"local-address": "192.0.2.1",
"prefix-length": 30,
"address": [
{
"address-id": "1",
"customer-address": "192.0.2.2"
}
]
},
"ipv6": {
"local-address": "2001:db8::1",
"prefix-length": 64,
"address": [
{
"address-id": "1",
"customer-address": "2001:db8::2"
}
]
}
}
},
{
"name": "ac2",
"description": "a second ac with a same peer node",
"ac-global-profile": ["simple-profile"],
"l2-connection": {
"encapsulation": {
"dot1q": {
"cvlan-id": 2
}
},
"bearer-reference": "line-156"
},
"ip-connection": {
"ipv4": {
"local-address": "192.0.2.1",
"prefix-length": 30,
"address": [
{
"address-id": "1",
"customer-address": "192.0.2.2"
}
]
},
"ipv6": {
"local-address": "2001:db8::1",
"prefix-length": 64,
"address": [
{
"address-id": "1",
"customer-address": "2001:db8::2"
}
]
}
}
}
]
}
}
3.2.6. Illustrate the Use of Per-Node Profiles
An example of a request to create two ACs to service the same CE on the same link is shown in Figure 10. Unlike Figure 8, this example factorizes all redundant data.¶
{
"ietf-ac-svc:attachment-circuits": {
"ac-node-group": [
{
"id": "simple-node-profile",
"l2-connection": {
"encapsulation": {
"type": "ietf-vpn-common:dot1q"
},
"bearer-reference": "line-156"
},
"ip-connection": {
"ipv4": {
"local-address": "192.0.2.1",
"prefix-length": 30,
"address": [
{
"address-id": "1",
"customer-address": "192.0.2.2"
}
]
},
"ipv6": {
"local-address": "2001:db8::1",
"prefix-length": 64,
"address": [
{
"address-id": "1",
"customer-address": "2001:db8::2"
}
]
}
},
"routing-protocols": {
"routing-protocol": [
{
"id": "1",
"type": "ietf-vpn-common:direct-routing"
}
]
}
}
],
"ac": [
{
"name": "ac1",
"description": "a first ac with a same peer node",
"ac-node-profile": ["simple-node-profile"],
"l2-connection": {
"encapsulation": {
"dot1q": {
"cvlan-id": 1
}
}
}
},
{
"name": "ac2",
"description": "a second ac with a same peer node",
"ac-node-profile": ["simple-node-profile"],
"l2-connection": {
"encapsulation": {
"dot1q": {
"cvlan-id": 2
}
}
}
}
]
}
}
A customer may request adding a new AC by simply referring to an existing per-node AC profile as shown in Figure 11. This AC inherites all the data that was enclosed in the indicated per-node AC profile (IP addressing, routing, etc.).¶
{
"ietf-ac-svc:attachment-circuits": {
"ac": [
{
"name": "ac3",
"description": "a third AC with a same peer node",
"ac-node-profile": [
"simple-node-profile"
],
"l2-connection": {
"encapsulation": {
"dot1q": {
"cvlan-id": 3
}
}
}
}
]
}
}
3.2.7. Multiple CEs
Figure 12 shows an example of CEs that are interconnected by a service provider network.¶
Figure 13 depicts an example of the message body of a request to instantiate the various ACs that are shown in Figure 12.¶
{
"ietf-ac-svc:attachment-circuits": {
"ac-global-profile": [
{
"id": "simple-profile",
"l2-connection": {
"encapsulation": {
"type": "ietf-vpn-common:dot1q",
"dot1q": {
"cvlan-id": 1
}
}
}
}
],
"ac": [
{
"name": "ac1",
"description": "Connect a first site",
"ac-global-profile": [
"simple-node-profile"
],
"l2-connection": {
"bearer-reference": "ce1-network"
}
},
{
"name": "ac2",
"description": "Connect a second Site",
"ac-global-profile": [
"simple-node-profile"
],
"l2-connection": {
"bearer-reference": "ce2-network"
}
},
{
"name": "ac3",
"description": "Connect a third site",
"ac-global-profile": [
"simple-node-profile"
],
"l2-connection": {
"bearer-reference": "ce3-network"
}
},
{
"name": "ac4",
"description": "Connect a forth site",
"ac-global-profile": [
"simple-node-profile"
],
"l2-connection": {
"bearer-reference": "ce4-network"
}
}
]
}
}
3.3. Binding Attachment Circuits to an IETF Network Slice
This example shows how the AC service model complements [I-D.ietf-teas-ietf-network-slice-nbi-yang] to connect a site to a slice service.¶
Firstly, Figure 14 describes the end-to-end network topology as well the orchestration scopes:¶
- The topology is made up of two sites (site1 and site2), interconnected via a Transport Network (e.g. IP/MPLS Network). A Network Function is deployed within each site in a dedicated IP Subnet.¶
- A 5G SMO is responsible for the deployment Network Functions and the indirect management of a local Gateway (i.e., CE device).¶
- An IETF Network Slice Controller is responsible for the deployment of IETF Network Slices accross the TN.¶
Network Functions are deployed within each site.¶
5G SMO IETF NSC 5G SMO
│ (TN ORCHESTRATOR) │
│ │ │
◄─────┴─────► ◄─────────┴────────► ◄────┴─────►
Site1 TRANSPORT NETWORK Site2
┌───┐ ┌──────────────┐ ┌───┐
│NF1│ │ │ │NF2│
└─┬─┘ ┌───┐ ┌─┴─┐ ┌─┴─┐ ┌───┐ └─┬─┘
│ │ │ │ │ │ │ │ │ │
──┴─────┤GW1├────────┤PE1│ │PE2├────────┤GW2├────┴──
▲ │ │ ▲ │ │ │ │ ▲ │ │ ▲
│ └───┘ │ └─┬─┘ └─┬─┘ │ └───┘ │
│ │ │ │ │ │
│ │ └──────────────┘ │ │
LAN1 │ │ LAN2
198.51.100.0/24 │ │ 203.0.113.0/24
│ │
│ │
Physical Link ID: Physical Link ID:
bearerX@site1 bearerX@site2
Figure 15 describes the logical connectivity enforced thanks to both IETF Network Slice and Attachment Circuit models.¶
AS 65536 ◄────BGP───► AS 65550
┌───┐ ┌────────┐ ┌───┐
│NF1│ 192.0.2.0/30 │ │ 192.0.2.4/30 │NF2│
└─┬─┘ ┌───┐ ┌──┴┐ ┌┴──┐ ┌───┐ └─┬─┘
│ │ │.1 .2│ │ │ │.5 .6│ │ │
──┴─────┤GW1│----------│PE1│ │PE2│----------│GW2├────┴──
│ │ vlan-id │ │ │ │ vlan-id │ │
└───┘ 100 └──┬┘ └┬──┘ 200 └───┘
198.51.100.0/24 │ │ 203.0.113.0/24
└────────┘
sdp1 sdp2
◄─────────► ◄────────────► ◄─────────►
Attachment Ietf Network Attachment
Circuit Slice Circuit
ac1 EMBB_UP ac2
ac1 properties:
- bearer-reference: bearerX@site1
- vlan-id: 100
- CE-address: 192.0.2.1/30
- PE-address: 192.0.2.2/30
- Routing: static 198.51.100.0/24 via
192.0.2.1 tag primary_UP_slice
ac2 properties:
- bearer-reference: bearerY@site2
- vlan-id: 200
- CE-address: 192.0.2.5/30
- PE-address: 192.0.2.6/30
- Routing: BGP local-as:65536
customer-as:65550
customer-address: 192.0.2.6
Figure 16 shows the message body of the request to create the required ACs using the Attachment Circuit module.¶
=============== NOTE: '\' line wrapping per RFC 8792 ================
{
"ietf-ac-svc:attachment-circuits": {
"ac": [
{
"name": "ac1",
"description": "Connection to site1 on vlan 100 for slice \
EMBB_UP",
"requested-ac-start": "2023-12-12T05:00:00.00Z",
"l2-connection": {
"encapsulation": {
"type": "ietf-vpn-common:dot1q",
"dot1q": {
"tag-type": "ietf-vpn-common:c-vlan",
"cvlan-id": 100
}
},
"bearer-reference": "bearerX@site1"
},
"ip-connection": {
"ipv4": {
"local-address": "192.0.2.2",
"prefix-length": 30,
"address": [
{
"address-id": "1",
"customer-address": "192.0.2.1"
}
]
}
},
"routing-protocols": {
"routing-protocol": [
{
"id": "1",
"type": "ietf-vpn-common:bgp-routing",
"static": {
"cascaded-lan-prefixes": {
"ipv4-lan-prefixes": [
{
"lan": "198.51.100.0/24",
"next-hop": "192.0.2.1",
"lan-tag": "primary_UP_slice"
}
]
}
}
}
]
}
},
{
"name": "ac2",
"description": "Connection to site2 on vlan 200 for slice \
EMBB_UP",
"requested-ac-start": "2023-12-12T05:00:00.00Z",
"l2-connection": {
"encapsulation": {
"type": "ietf-vpn-common:dot1q",
"dot1q": {
"tag-type": "ietf-vpn-common:c-vlan",
"cvlan-id": 200
}
},
"bearer-reference": "bearerY@site2"
},
"ip-connection": {
"ipv4": {
"local-address": "192.0.2.6",
"prefix-length": 30,
"address": [
{
"address-id": "1",
"customer-address": "192.0.2.5"
}
]
}
},
"routing-protocols": {
"routing-protocol": [
{
"id": "1",
"type": "ietf-vpn-common:bgp-routing",
"bgp": {
"neighbor": [
{
"id": "1",
"local-as": "65536",
"peer-as": "65550"
}
]
}
}
]
}
}
]
}
}
Figure 17 shows the message body of the request to create the a slice service bound to the ACs created using Figure 16. Only references to these ACs are included in the Slice Service request. This example assumes that the module defined Appendix B is also supported by the NSC.¶
=============== NOTE: '\' line wrapping per RFC 8792 ================
{
"ietf-network-slice-service:network-slice-services": {
"slo-sle-templates": {
"slo-sle-template": [
{
"id": "low-latency-template",
"template-description": "Lowest possible latencey \
forwarding behavior"
}
]
},
"slice-service": [
{
"service-id": "Slice EMBB_UP",
"service-description": "Dedicate TN Slice for EMBB-UP",
"slo-sle-template": "low-latency-template",
"status": {},
"sdps": {
"sdp": [
{
"sdp-id": "sdp1",
"ietf-ac-glue:ac-ref": [
"ac1"
]
},
{
"sdp-id": "sdp2",
"ietf-ac-glue:ac-ref": [
"ac2"
]
}
]
}
}
]
}
}
4. Description of the Attachment Circuit YANG Module
4.1. Overall Structure of the Module
The overall tree structure of the AC service module is shown in Figure 18.¶
+--rw specific-provisioning-profiles
| ...
+--rw service-provisioning-profiles
| ...
+--rw bearers
| ...
+--rw attachment-circuits
+--rw ac-global-profile* [id]
| ...
+--rw ac-node-group* [id]
| ...
+--rw ac* [name]
...
+--rw l2-connection
| ...
+--rw ip-connection
| ...
+--rw routing-protocols
| ...
+--rw oam
| ...
+--rw security
...
The full tree structure is provided in Appendix A.¶
Each AC is identified with a unique identifier within a domain. The mapping between this AC and a local PE that terminates the AC is hidden to the application that makes use of the AC service model. This information is internal to the Network controller. As such, the details about the (node-specific) attachment interfaces are not exposed in this service model.¶
4.2. Service Profiles
4.2.1. Description
The 'specific-provisioning-profiles' container (Figure 19) can be used by a service provider to maintain a set of specific profiles that are similar to those defined in [RFC9181]. The exact definition of the profiles is local to each service provider. The model only includes an identifier for these profiles in order to facilitate identifying and binding local policies when building an AC.¶
module: ietf-ac-svc
+--rw specific-provisioning-profiles
| +--rw valid-provider-identifiers
| +--rw external-connectivity-identifier* [id]
| | {external-connectivity}?
| | +--rw id string
| +--rw encryption-profile-identifier* [id]
| | +--rw id string
| +--rw qos-profile-identifier* [id]
| | +--rw id string
| +--rw bfd-profile-identifier* [id]
| | +--rw id string
| +--rw forwarding-profile-identifier* [id]
| | +--rw id string
| +--rw routing-profile-identifier* [id]
| +--rw id string
+--rw service-provisioning-profiles
| +--rw service-profile-identifier* [id]
| +--rw id string
+--rw bearers
| ...
+--rw attachment-circuits
+--rw ac-global-profile* [id]
| ...
+--rw ac-node-group* [id]
| ...
+--rw ac* [name]
...
+--rw l2-connection
| ...
+--rw ip-connection
| ...
+--rw routing-protocols
| ...
+--rw oam
| ...
+--rw security
...
As shown in Figure 19, two profile types can be defined: 'specific-provisioning-profiles' and 'service-provisioning-profiles'. Whether only specific profiles, service profiles, or a combination thereff are used is local to each service provider.¶
The following specific rovisioning profiles can be defined:¶
- 'external-connectivity-identifier':
-
Refers to a profile that defines the external connectivity provided to a site that is connected via an AC. External connectivity may be access to the Internet or restricted connectivity, such as access to a public/private cloud.¶
- 'encryption-profile-identifier':
-
Refers to a set of policies related to the encryption setup that can be applied when provisioning an AC.¶
- 'qos-profile-identifier':
-
Refers to a set of policies, such as classification, marking, and actions (e.g., [RFC3644]).¶
- 'bfd-profile-identifier':
-
Refers to a set of Bidirectional Forwarding Detection (BFD) policies [RFC5880] that can be invoked when building an AC.¶
- 'forwarding-profile-identifier':
-
Refers to the policies that apply to the forwarding of packets conveyed within an AC. Such policies may consist, for example, of applying Access Control Lists (ACLs).¶
- 'routing-profile-identifier':
-
Refers to a set of routing policies that will be invoked (e.g., BGP policies) when building an AC.¶
4.2.2. Referencing Service/Specific Profiles
All these profiles are uniquely identified by the NETCONF/RESTCONF server by an identifier. To ease referencing these profiles by other data models, specific typedefs are defined for each of these profiles. Likewise, an attachment circuit referenc typedef is defiened when referencing a (global) attachment circuit by its name is required. These typedefs SHOULD be used when other modules need a reference to one of these profiles or attahment circuits.¶
4.5. Bearers
Figure 20 shows the sub-tree for managing the bearers (that is, the properties of the attachment that are below Layer 3). A bearer can be a wireless or wired link. A reference to a bearer is generated by the operator. Such a reference can be used, e.g., in a subsequent service request to create an AC. The anchroing of the AC can also be achieved by indicating (with or without a bearer reference), a peer SAP identifier (e.g., An identifier of a Service Function).¶
+--rw specific-provisioning-profiles
| ...
+--rw service-provisioning-profiles
| ...
+--rw bearers
| +--rw bearer* [id]
| +--rw id string
| +--rw description? string
| +--rw customer-device
| | +--rw device-id? string
| | +--rw location
| | +--rw address? string
| | +--rw postal-code? string
| | +--rw state? string
| | +--rw city? string
| | +--rw country-code? string
| +--rw requested-type? identityref
| +--ro bearer-reference? string
| | {vpn-common:bearer-reference}?
| +--rw requested-start? yang:date-and-time
| +--rw requested-stop? yang:date-and-time
| +--ro actual-start? yang:date-and-time
| +--ro actual-stop? yang:date-and-time
+--rw attachment-circuits
...
4.6. Attachment Circuits
The structure of 'attachment-circuits' is shown in Figure 21.¶
+--rw specific-provisioning-profiles
| ...
+--rw service-provisioning-profiles
| ...
+--rw bearers
| ...
+--rw attachment-circuits
+--rw ac-global-profile* [id]
| ...
+--rw ac-node-group* [id]
| ...
+--rw ac* [name]
+--rw customer-name? string
+--rw description? string
+--rw requested-start? yang:date-and-time
+--rw requested-stop? yang:date-and-time
+--ro actual-start? yang:date-and-time
+--ro actual-stop? yang:date-and-time
+--rw peer-sap-id* string
+--rw ac-global-profile* ac-global-profile-reference
+--rw ac-node-profile* ac-node-group-reference
+--rw name string
+--rw l2-connection
| ...
+--rw ip-connection
| ...
+--rw routing-protocols
| ...
+--rw oam
| ...
+--rw security
...
4.6.1. Layer 2 Connection Structure
As shown in the tree depicted in Figure 22, the 'l2-connection' container defines service parameters to enable such connectivity at Layer 2.¶
+--rw specific-provisioning-profiles
| ...
+--rw service-provisioning-profiles
| ...
+--rw bearers
| ...
+--rw attachment-circuits
+--rw ac-global-profile* [id]
| ...
+--rw ac-node-group* [id]
| ...
+--rw ac* [name]
+--rw customer-name? string
+--rw description? string
+--rw requested-start? yang:date-and-time
+--rw requested-stop? yang:date-and-time
+--ro actual-start? yang:date-and-time
+--ro actual-stop? yang:date-and-time
+--rw peer-sap-id* string
+--rw ac-global-profile* ac-global-profile-reference
+--rw ac-node-profile* ac-node-group-reference
+--rw name string
+--rw l2-connection
| +--rw encapsulation
| | +--rw type? identityref
| | +--rw dot1q
| | | +--rw tag-type? identityref
| | | +--rw cvlan-id? uint16
| | +--rw priority-tagged
| | | +--rw tag-type? identityref
| | +--rw qinq
| | +--rw tag-type? identityref
| | +--rw svlan-id uint16
| | +--rw cvlan-id uint16
| +--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 bearer-reference? string
| {vpn-common:bearer-reference}?
+--rw ip-connection
| ...
+--rw routing-protocols
| ...
+--rw oam
| ...
+--rw security
...
4.6.2. Layer 3 Connection Structure
The 'l3-connection' container defines a set of service parameters to enable Layer 3 connectivity for an AC. Both IPv4 and IPv6 parameters are supported.¶
Figure 23 shows the structure of the IPv4 connection.¶
+--rw specific-provisioning-profiles
| ...
+--rw service-provisioning-profiles
| ...
+--rw bearers
| ...
+--rw attachment-circuits
+--rw ac-global-profile* [id]
| ...
+--rw ac-node-group* [id]
| ...
+--rw ac* [name]
+--rw customer-name? string
+--rw description? string
+--rw requested-start? yang:date-and-time
+--rw requested-stop? yang:date-and-time
+--ro actual-start? yang:date-and-time
+--ro actual-stop? yang:date-and-time
+--rw peer-sap-id* string
+--rw ac-global-profile* ac-global-profile-reference
+--rw ac-node-profile* ac-node-group-reference
+--rw name string
+--rw l2-connection
| ...
+--rw ip-connection
| +--rw ipv4 {vpn-common:ipv4}?
| | +--rw local-address?
| | | inet:ipv4-address
| | +--rw virtual-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
| | | +--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 ipv6 {vpn-common:ipv6}?
| ...
+--rw routing-protocols
| ...
+--rw oam
| ...
+--rw security
...
Figure 24 shows the structure of the IPv6 connection.¶
+--rw specific-provisioning-profiles
| ...
+--rw service-provisioning-profiles
| ...
+--rw bearers
| ...
+--rw attachment-circuits
+--rw ac-global-profile* [id]
| ...
+--rw ac-node-group* [id]
| ...
+--rw ac* [name]
+--rw customer-name? string
+--rw description? string
+--rw requested-start? yang:date-and-time
+--rw requested-stop? yang:date-and-time
+--ro actual-start? yang:date-and-time
+--ro actual-stop? yang:date-and-time
+--rw peer-sap-id* string
+--rw ac-global-profile* ac-global-profile-reference
+--rw ac-node-profile* ac-node-group-reference
+--rw name string
+--rw l2-connection
| ...
+--rw ip-connection
| +--rw ipv4 {vpn-common:ipv4}?
| | ...
| +--rw ipv6 {vpn-common:ipv6}?
| +--rw local-address?
| | inet:ipv6-address
| +--rw virtual-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
| | +--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 routing-protocols
| ...
+--rw oam
| ...
+--rw security
...
4.6.3. Routing
As shown in the tree depicted in Figure 25, the 'routing-protocols' container defines th erequired parameters to enable the required routing features for an AC. One or more routing protocols can be associated with an AC. Such routing protocols are then enabled between a PE and the CE. Each routing instance is uniquely identified to accommodate scenarios where multiple instances of the same routing protocol have to be configured on the same link.¶
In addition to static routing, the module supports the following routing protocols:¶
The model also supports the Virtual Router Redundancy Protocol (VRRP) [RFC5798] on an AC.¶
+--rw specific-provisioning-profiles
| ...
+--rw service-provisioning-profiles
| ...
+--rw bearers
| ...
+--rw attachment-circuits
+--rw ac-global-profile* [id]
| ...
+--rw ac-node-group* [id]
| ...
+--rw ac* [name]
+--rw customer-name? string
+--rw description? string
+--rw requested-start? yang:date-and-time
+--rw requested-stop? yang:date-and-time
+--ro actual-start? yang:date-and-time
+--ro actual-stop? yang:date-and-time
+--rw peer-sap-id* string
+--rw ac-global-profile* ac-global-profile-reference
+--rw ac-node-profile* ac-node-group-reference
+--rw name string
+--rw l2-connection
| ...
+--rw ip-connection
| ...
+--rw routing-protocols
| +--rw routing-protocol* [id]
| +--rw id string
| +--rw type? identityref
| +--rw routing-profiles* [id]
| | +--rw id routing-profile-reference
| | +--rw type? identityref
| +--rw static
| | +--rw cascaded-lan-prefixes
| | +--rw ipv4-lan-prefixes* [lan next-hop]
| | | {vpn-common:ipv4}?
| | | +--rw lan inet:ipv4-prefix
| | | +--rw lan-tag? string
| | | +--rw next-hop union
| | | +--rw metric? uint32
| | | +--rw status
| | | +--rw admin-status
| | | | +--rw status? identityref
| | | | +--rw last-change? yang:date-and-time
| | | +--ro oper-status
| | | +--ro status? identityref
| | | +--ro last-change? yang:date-and-time
| | +--rw ipv6-lan-prefixes* [lan next-hop]
| | {vpn-common:ipv6}?
| | +--rw lan inet:ipv6-prefix
| | +--rw lan-tag? string
| | +--rw next-hop union
| | +--rw metric? uint32
| | +--rw status
| | +--rw admin-status
| | | +--rw status? identityref
| | | +--rw last-change? yang:date-and-time
| | +--ro oper-status
| | +--ro status? identityref
| | +--ro last-change? yang:date-and-time
| +--rw bgp
| | +--rw peer-groups
| | | +--rw peer-group* [name]
| | | +--rw name string
| | | +--ro local-address? inet:ip-address
| | | +--ro local-as? inet:as-number
| | | +--rw peer-as? inet:as-number
| | | +--rw address-family? identityref
| | | +--rw authentication
| | | +--rw enable? 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* [id]
| | +--rw id string
| | +--rw remote-address? inet:ip-address
| | +--ro local-address? inet:ip-address
| | +--rw peer-group?
| | | -> ../../peer-groups/peer-group/name
| | +--ro local-as? inet:as-number
| | +--rw peer-as? inet:as-number
| | +--rw address-family? identityref
| | +--rw authentication
| | | +--rw enable? 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
| | | +--rw last-change? yang:date-and-time
| | +--ro oper-status
| | +--ro status? identityref
| | +--ro last-change? yang:date-and-time
| +--rw ospf
| | +--rw address-family? identityref
| | +--rw area-id yang:dotted-quad
| | +--rw metric? uint16
| | +--rw authentication
| | | +--rw enable? 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
| | | +--rw last-change? yang:date-and-time
| | +--ro oper-status
| | +--ro status? identityref
| | +--ro last-change? yang:date-and-time
| +--rw isis
| | +--rw address-family? identityref
| | +--rw area-address area-address
| | +--rw authentication
| | | +--rw enable? 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
| | | +--rw last-change? yang:date-and-time
| | +--ro oper-status
| | +--ro status? identityref
| | +--ro last-change? yang:date-and-time
| +--rw rip
| | +--rw address-family? identityref
| | +--rw authentication
| | | +--rw enable? 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
| | | +--rw last-change? yang:date-and-time
| | +--ro oper-status
| | +--ro status? identityref
| | +--ro last-change? yang:date-and-time
| +--rw vrrp
| +--rw address-family? identityref
| +--rw status
| +--rw admin-status
| | +--rw status? identityref
| | +--rw last-change? yang:date-and-time
| +--ro oper-status
| +--ro status? identityref
| +--ro last-change? yang:date-and-time
+--rw oam
| ...
+--rw security
...
For all supported routing protocols, 'address-family' indicates whether IPv4, IPv6, or both address families are to be activated. For example, this parameter is used to determine whether RIPv2 [RFC2453], RIP Next Generation (RIPng), or both are to be enabled [RFC2080].¶
4.6.4. OAM
As shown in the tree depicted in Figure 26, the 'oam' container defines OAM-related parameters of an AC.¶
+--rw specific-provisioning-profiles
| ...
+--rw service-provisioning-profiles
| ...
+--rw bearers
| ...
+--rw attachment-circuits
+--rw ac-global-profile* [id]
| ...
+--rw ac-node-group* [id]
| ...
+--rw ac* [name]
...
+--rw l2-connection
| ...
+--rw ip-connection
| ...
+--rw routing-protocols
| ...
+--rw oam
| +--rw bfd {vpn-common:bfd}?
| +--rw holdtime? uint32
| +--rw status
| +--rw admin-status
| | +--rw status? identityref
| | +--rw last-change? yang:date-and-time
| +--ro oper-status
| +--ro status? identityref
| +--ro last-change? yang:date-and-time
+--rw security
...
4.6.5. Security
As shown in the tree depicted in Figure 27, the 'security' container defines a set of AC security parameters.¶
+--rw specific-provisioning-profiles
| ...
+--rw service-provisioning-profiles
| ...
+--rw bearers
| ...
+--rw attachment-circuits
+--rw ac-global-profile* [id]
| ...
+--rw ac-node-group* [id]
| ...
+--rw ac* [name]
...
+--rw l2-connection
| ...
+--rw ip-connection
| ...
+--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 provider-profile?
| ac-svc:encryption-profile-reference
+--:(customer-profile)
+--rw customer-key-chain?
key-chain:key-chain-ref
5. YANG Module
This module uses types defined in [RFC6991], [RFC9181], and [RFC8177].¶
<CODE BEGINS> file "ietf-ac-svc@2022-11-30.yang"
module ietf-ac-svc {
yang-version 1.1;
namespace "urn:ietf:params:xml:ns:yang:ietf-ac-svc";
prefix ac-svc;
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-yang-types {
prefix yang;
reference
"RFC 6991: Common YANG Data Types, Section 3";
}
import ietf-key-chain {
prefix key-chain;
reference
"RFC 8177: YANG Data Model for Key Chains";
}
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 generic YANG model for exposing
attachment circuits as a service.
Copyright (c) 2023 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 xxx; see the
RFC itself for full legal notices.";
revision 2022-11-30 {
description
"Initial revision.";
reference
"RFC xxxx: A YANG Service Data Model for Attachment Circuits";
}
// Identities
identity bearer-type {
description
"Base identity for bearers type.";
}
identity ethernet {
base bearer-type;
description
"Ethernet.";
}
identity wireless {
base bearer-type;
description
"Wireless.";
}
identity address-allocation-type {
description
"Base identity for address allocation type in the AC.";
}
identity provider-dhcp {
base address-allocation-type;
description
"The provider's network provides a DHCP service to the
customer.";
}
identity provider-dhcp-relay {
base address-allocation-type;
description
"The provider's network provides a DHCP relay service to the
customer.";
}
identity provider-dhcp-slaac {
if-feature "vpn-common:ipv6";
base address-allocation-type;
description
"The provider's network provides a DHCP service to the
customer as well as IPv6 Stateless Address
Autoconfiguration (SLAAC).";
reference
"RFC 4862: IPv6 Stateless Address Autoconfiguration";
}
identity static-address {
base address-allocation-type;
description
"The provider's network provides static IP addressing to the
customer.";
}
identity slaac {
if-feature "vpn-common:ipv6";
base address-allocation-type;
description
"The provider's network uses IPv6 SLAAC to provide
addressing to the customer.";
reference
"RFC 4862: IPv6 Stateless Address Autoconfiguration";
}
identity dynamic-infra {
base address-allocation-type;
description
"The IP address is dynamically allocated by the hosting
infrastrcture.";
}
identity local-defined-next-hop {
description
"Base identity of local defined next hops.";
}
identity discard {
base local-defined-next-hop;
description
"Indicates an action to discard traffic for the
corresponding destination.
For example, this can be used to black-hole traffic.";
}
identity local-link {
base local-defined-next-hop;
description
"Treat traffic towards addresses within the specified
next-hop prefix as though they are connected to a local
link.";
}
identity l2-tunnel-type {
description
"Base identity for Layer 2 tunnel selection under the VPN
network access.";
}
identity pseudowire {
base l2-tunnel-type;
description
"Pseudowire tunnel termination in the VPN network access.";
}
identity vpls {
base l2-tunnel-type;
description
"Virtual Private LAN Service (VPLS) tunnel termination in
the VPN network access.";
}
identity vxlan {
base l2-tunnel-type;
description
"Virtual eXtensible Local Area Network (VXLAN) tunnel
termination in the VPN network access.";
}
/* Typedefs */
typedef predefined-next-hop {
type identityref {
base local-defined-next-hop;
}
description
"Predefined next-hop designation for locally generated
routes.";
}
typedef area-address {
type string {
pattern '[0-9A-Fa-f]{2}(\.[0-9A-Fa-f]{4}){0,6}';
}
description
"This type defines the area address format.";
}
typedef attachment-circuit-reference {
type leafref {
path "/ac-svc:attachment-circuits/ac-svc:ac/ac-svc:name";
}
description
"Defines a reference to an attachment circuit that can be used
by other modules.";
}
typedef ac-global-profile-reference {
type leafref {
path "/ac-svc:attachment-circuits/ac-svc:ac-global-profile"
+ "/ac-svc:id";
}
description
"Defines a reference to a gloabl attachment circuit that can be used
by other modules.";
}
typedef ac-node-group-reference {
type leafref {
path "/ac-svc:attachment-circuits/ac-svc:ac-node-group"
+ "/ac-svc:id";
}
description
"Defines a reference to a per-node attachment circuit that can be used
by other modules.";
}
typedef encryption-profile-reference {
type leafref {
path "/ac-svc:specific-provisioning-profiles/ac-svc:valid-provider-identifiers"
+ "/ac-svc:encryption-profile-identifier/ac-svc:id";
}
description
"Defines a type to an encryption profile for referencing
purposes.";
}
typedef qos-profile-reference {
type leafref {
path "/ac-svc:specific-provisioning-profiles/ac-svc:valid-provider-identifiers"
+ "/ac-svc:qos-profile-identifier/ac-svc:id";
}
description
"Defines a type to a QoS profile for referencing purposes.";
}
typedef bfd-profile-reference {
type leafref {
path "/ac-svc:specific-provisioning-profiles/ac-svc:valid-provider-identifiers"
+ "/ac-svc:bfd-profile-identifier/ac-svc:id";
}
description
"Defines a type to a BFD profile for referencing purposes.";
}
typedef forwarding-profile-reference {
type leafref {
path "/ac-svc:specific-provisioning-profiles/ac-svc:valid-provider-identifiers"
+ "/ac-svc:forwarding-profile-identifier/ac-svc:id";
}
description
"Defines a type to a forwarding profile for referencing purposes.";
}
typedef routing-profile-reference {
type leafref {
path "/ac-svc:specific-provisioning-profiles/ac-svc:valid-provider-identifiers"
+ "/ac-svc:routing-profile-identifier/id";
}
description
"Defines a type to a routing profile for referencing purposes.";
}
/*
typedef bearer-reference {
type leafref {
path "/ac-svc:bearers/ac-svc:bearer/ac-svc:id";
}
description
"Defines a type to a bearer for referencing purposes.";
}*/
// L2 connection
grouping l2-connection-profile {
description
"Defines Layer 2 protocols and parameters that can be
factorized when provisioning Layer 2 connectivity.";
container encapsulation {
description
"Container for Layer 2 encapsulation.";
leaf type {
type identityref {
base vpn-common:encapsulation-type;
}
//default "vpn-common:priority-tagged";
description
"Encapsulation type. By default, the type
of the tagged interface is 'priority-tagged'.";
}
container dot1q {
when "derived-from-or-self(../type, 'vpn-common:dot1q')" {
description
"Only applies when the type of the tagged interface
is 'dot1q'.";
}
description
"Tagged interface.";
leaf tag-type {
type identityref {
base vpn-common:tag-type;
}
default "vpn-common:c-vlan";
description
"Tag type. By default, the tag type is 'c-vlan'.";
}
leaf cvlan-id {
type uint16 {
range "1..4094";
}
description
"VLAN identifier.";
}
}
container qinq {
when "derived-from-or-self(../type, 'vpn-common:qinq')" {
description
"Only applies when the type of the tagged interface
is 'qinq'.";
}
description
"Includes QinQ parameters.";
leaf tag-type {
type identityref {
base vpn-common:tag-type;
}
default "vpn-common:s-c-vlan";
description
"Tag type.";
}
leaf svlan-id {
type uint16;
mandatory true;
description
"Service VLAN (S-VLAN) identifier.";
}
leaf cvlan-id {
type uint16;
mandatory true;
description
"Customer VLAN (C-VLAN) identifier.";
}
}
}
}
grouping l2-connection {
description
"Defines Layer 2 protocols and parameters that are used to enable
AC connectivity.";
container encapsulation {
description
"Container for Layer 2 encapsulation.";
leaf type {
type identityref {
base vpn-common:encapsulation-type;
}
//default "vpn-common:priority-tagged";
description
"Encapsulation type. By default, the type of the tagged
interface is 'priority-tagged'.";
}
container dot1q {
when "derived-from-or-self(../type, 'vpn-common:dot1q')" {
description
"Only applies when the type of the tagged interface
is 'dot1q'.";
}
description
"Tagged interface.";
leaf tag-type {
type identityref {
base vpn-common:tag-type;
}
default "vpn-common:c-vlan";
description
"Tag type. By default, the tag type is 'c-vlan'.";
}
leaf cvlan-id {
type uint16 {
range "1..4094";
}
description
"VLAN identifier.";
}
}
container priority-tagged {
when "derived-from-or-self(../type, "
+ "'vpn-common:priority-tagged')" {
description
"Only applies when the type of the tagged interface is
'priority-tagged'.";
}
description
"Priority tagged.";
leaf tag-type {
type identityref {
base vpn-common:tag-type;
}
default "vpn-common:c-vlan";
description
"Tag type. By default, the tag type is 'c-vlan'.";
}
}
container qinq {
when "derived-from-or-self(../type, 'vpn-common:qinq')" {
description
"Only applies when the type of the tagged interface
is 'qinq'.";
}
description
"Includes QinQ parameters.";
leaf tag-type {
type identityref {
base vpn-common:tag-type;
}
default "vpn-common:s-c-vlan";
description
"Tag type.";
}
leaf svlan-id {
type uint16;
mandatory true;
description
"Service VLAN (S-VLAN) identifier.";
}
leaf cvlan-id {
type uint16;
mandatory true;
description
"Customer VLAN (C-VLAN) identifier.";
}
}
}
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.
It is only applicable when a tunnel is required.
The supported values are 'pseudowire', 'vpls', and 'vxlan'.
Other values may be defined, if needed.";
leaf type {
type identityref {
base l2-tunnel-type;
}
description
"Selects the tunnel termination option for each AC
Endpoint.";
}
container pseudowire {
when "derived-from-or-self(../type, 'pseudowire')" {
description
"Only applies when the Layer 2 service type is
'pseudowire'.";
}
description
"Includes pseudowire termination parameters.";
leaf vcid {
type uint32;
description
"Indicates a pseudowire (PW) or virtual circuit (VC)
identifier.";
}
leaf far-end {
type union {
type uint32;
type inet:ip-address;
}
description
"Neighbor reference.";
reference
"RFC 8077: Pseudowire Setup and Maintenance
Using the Label Distribution Protocol
(LDP), Section 6.1";
}
}
container vpls {
when "derived-from-or-self(../type, 'vpls')" {
description
"Only applies when the Layer 2 service type is 'vpls'.";
}
description
"VPLS termination parameters.";
leaf vcid {
type uint32;
description
"VC identifier.";
}
leaf-list far-end {
type union {
type uint32;
type inet:ip-address;
}
description
"Neighbor reference.";
}
}
container vxlan {
when "derived-from-or-self(../type, 'vxlan')" {
description
"Only applies when the Layer 2 service type is 'vxlan'.";
}
description
"VXLAN termination parameters.";
leaf vni-id {
type uint32;
mandatory true;
description
"VXLAN Network Identifier (VNI).";
}
leaf peer-mode {
type identityref {
base vpn-common:vxlan-peer-mode;
}
default "vpn-common:static-mode";
description
"Specifies the VXLAN access mode. By default,
the peer mode is set to 'static-mode'.";
}
leaf-list peer-ip-address {
type inet:ip-address;
description
"List of a peer's IP addresses.";
}
}
}
case l2vpn {
leaf l2vpn-id {
type vpn-common:vpn-id;
description
"Indicates the L2VPN service associated with an Integrated
Routing and Bridging (IRB) interface.";
}
}
}
leaf bearer-reference {
if-feature "vpn-common:bearer-reference";
type string;
description
"This is an internal reference for the service provider
to identify the bearer associated with this AC.";
}
}
grouping ip-connection-global-profile {
description
"Defines IP connection parameters.";
container ipv4 {
if-feature "vpn-common:ipv4";
description
"IPv4-specific parameters.";
leaf prefix-length {
type uint8 {
range "0..32";
}
description
"Subnet prefix length expressed in bits.
It is applied to both local and customer addresses.";
}
leaf address-allocation-type {
type identityref {
base address-allocation-type;
}
must "not(derived-from-or-self(current(), 'slaac') or "
+ "derived-from-or-self(current(), "
+ "'provider-dhcp-slaac'))" {
error-message "SLAAC is only applicable to IPv6.";
}
default "static-address";
description
"Defines how addresses are allocated to the peer site.
If there is no value for the address allocation type,
then IPv4 addressing is not enabled.";
}
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 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 AC.";
}
}
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.";
}
}
}
}
}
}
container ipv6 {
if-feature "vpn-common:ipv6";
description
"IPv6-specific parameters.";
leaf prefix-length {
type uint8 {
range "0..128";
}
description
"Subnet prefix length expressed in bits.
It is applied to both local and customer addresses.";
}
leaf address-allocation-type {
type identityref {
base address-allocation-type;
}
default "static-address";
description
"Defines how addresses are allocated.
If there is no value for the address allocation type,
then IPv6 addressing is disabled.";
}
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 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 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 server.";
}
}
}
}
}
}
}
grouping ip-connection {
description
"Defines IP connection parameters.";
container ipv4 {
if-feature "vpn-common:ipv4";
description
"IPv4-specific parameters.";
leaf local-address {
type inet:ipv4-address;
description
"The IP address used at the provider's interface.";
}
leaf virtual-address {
type inet:ipv4-address;
description
"This addresss may be used for redundancy purposes.";
}
leaf prefix-length {
type uint8 {
range "0..32";
}
description
"Subnet prefix length expressed in bits.
It is applied to both local and customer addresses.";
}
leaf address-allocation-type {
type identityref {
base address-allocation-type;
}
must "not(derived-from-or-self(current(), 'slaac') or "
+ "derived-from-or-self(current(), "
+ "'provider-dhcp-slaac'))" {
error-message "SLAAC is only applicable to IPv6.";
}
default "static-address";
description
"Defines how addresses are allocated to the peer site.
If there is no value for the address allocation type,
then IPv4 addressing is not enabled.";
}
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 {
default "number";
description
"A choice for how IPv4 addresses are assigned.";
case number {
leaf number-of-dynamic-address {
type uint16;
default "1";
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 dyncamically 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 AC.";
}
}
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 IPv4 addresses that are used.";
/*leaf primary-address {
type leafref {
path "../address/address-id";
}
description
"Primary IP address of the connection.";
}*/
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.";
}
}
}
}
}
container ipv6 {
if-feature "vpn-common:ipv6";
description
"IPv6-specific parameters.";
leaf local-address {
type inet:ipv6-address;
description
"IPv6 address of the provider side.";
}
leaf virtual-address {
type inet:ipv6-address;
description
"This addresss may be used for redundancy purposes.";
}
leaf prefix-length {
type uint8 {
range "0..128";
}
description
"Subnet prefix length expressed in bits.
It is applied to both local and customer addresses.";
}
leaf address-allocation-type {
type identityref {
base address-allocation-type;
}
default "static-address";
description
"Defines how addresses are allocated.
If there is no value for the address allocation type,
then IPv6 addressing is disabled.";
}
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 {
default "number";
description
"A choice for how IPv6 addresses are assigned.";
case number {
leaf number-of-dynamic-address {
type uint16;
default "1";
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 dyncamically 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 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 server.";
}
}
}
}
case static-addresses {
description
"Lists the IPv6 addresses that are used.";
/*leaf primary-address {
type leafref {
path "../address/address-id";
}
description
"Primary IP address of the connection.";
}*/
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 IP 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.";
}
}
}
}
}
}
/* Routing */
grouping routing-profile {
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-profiles {
key "id";
description
"Routing profiles.";
leaf id {
type routing-profile-reference;
description
"Reference to the routing profile to be used.";
}
leaf type {
type identityref {
base vpn-common:ie-type;
}
description
"Import, export, or both.";
}
}
container bgp {
when "derived-from-or-self(../type, 'vpn-common:bgp-routing')" {
description
"Only applies when the protocol is BGP.";
}
description
"Configuration specific to BGP.";
container peer-groups {
description
"Configuration for BGP peer-groups";
list peer-group {
key "name";
description
"List of BGP peer-groups configured on the local system -
uniquely identified by peer-group name";
leaf name {
type string;
description
"Name of the BGP peer-group";
}
leaf local-as {
type inet:as-number;
config false;
description
"Indicates a local AS Number (ASN). This ASN is exposed
to a customer so that it knows which ASN to use
to set up a BGP session.";
}
leaf peer-as {
type inet:as-number;
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 IPv6e
will b activated.";
}
}
}
}
container ospf {
when "derived-from-or-self(../type, "
+ "'vpn-common:ospf-routing')" {
description
"Only applies when the protocol is OSPF.";
}
description
"Configuration specific to OSPF.";
leaf address-family {
type identityref {
base vpn-common:address-family;
}
description
"Indicates whether IPv4, IPv6, or both are to be
activated.";
}
leaf area-id {
type yang:dotted-quad;
mandatory true;
description
"Area ID.";
reference
"RFC 4577: OSPF as the Provider/Customer Edge Protocol
for BGP/MPLS IP Virtual Private Networks
(VPNs), Section 4.2.3
RFC 6565: OSPFv3 as a Provider Edge to Customer Edge
(PE-CE) Routing Protocol, Section 4.2";
}
leaf metric {
type uint16;
default "1";
description
"Metric of the AC. It is used in the routing state
calculation and path selection.";
}
}
container isis {
when "derived-from-or-self(../type, "
+ "'vpn-common:isis-routing')" {
description
"Only applies when the protocol is IS-IS.";
}
description
"Configuration specific to IS-IS.";
leaf address-family {
type identityref {
base vpn-common:address-family;
}
description
"Indicates whether IPv4, IPv6, or both are to
be activated.";
}
leaf area-address {
type area-address;
mandatory true;
description
"Area address.";
}
}
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.";
}
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 vrrp {
when "derived-from-or-self(../type, "
+ "'vpn-common:vrrp-routing')" {
description
"Only applies when the protocol is the
Virtual Router Redundancy Protocol (VRRP).";
}
description
"Configuration specific to VRRP.";
reference
"RFC 5798: 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.";
}
}
}
}
grouping encryption-choice {
description
"Container for the encryption profile.";
choice profile {
description
"Choice for the encryption profile.";
case provider-profile {
leaf provider-profile {
type ac-svc:encryption-profile-reference;
description
"Reference to a provider encryption profile.";
}
}
case customer-profile {
leaf customer-key-chain {
type key-chain:key-chain-ref;
description
"Customer-supplied key chain.";
}
}
}
}
grouping bgp-authentication {
description
"Grouping for BGP authentication parameters.";
container authentication {
description
"Container for BGP authentication parameters.";
leaf enable {
type boolean;
default "false";
description
"Enables or disables authentication.";
}
container keying-material {
when "../enable = 'true'";
description
"Container for describing how a BGP
routing session is to be secured
between a PE and a CE.";
choice option {
description
"Choice of authentication options.";
case ao {
description
"Uses the TCP Authentication Option (TCP-AO).";
reference
"RFC 5925: The TCP Authentication Option";
leaf enable-ao {
type boolean;
description
"Enables the TCP-AO.";
}
leaf ao-keychain {
type key-chain:key-chain-ref;
description
"Reference to the TCP-AO key chain.";
reference
"RFC 8177: YANG Data Model for Key Chains";
}
}
case md5 {
description
"Uses MD5 to secure the session.";
reference
"RFC 4364: BGP/MPLS IP Virtual Private Networks
(VPNs), Section 13.2";
leaf md5-keychain {
type key-chain:key-chain-ref;
description
"Reference to the MD5 key chain.";
reference
"RFC 8177: YANG Data Model for Key Chains";
}
}
case explicit {
leaf key-id {
type uint32;
description
"Key identifier.";
}
leaf key {
type string;
description
"BGP authentication key.
This model only supports the subset of keys that
are representable as ASCII strings.";
}
leaf crypto-algorithm {
type identityref {
base key-chain:crypto-algorithm;
}
description
"Indicates the cryptographic algorithm associated
with the key.";
}
}
}
}
}
}
grouping ospf-authentication {
description
"Authentication configuration.";
container authentication {
description
"Container for OSPF authentication parameters.";
leaf enable {
type boolean;
default "false";
description
"Enables or disables authentication.";
}
container keying-material {
when "../enable = 'true'";
description
"Container for describing how an OSPF session is to be secured
for this AC.";
choice option {
description
"Options for OSPF authentication.";
case auth-key-chain {
leaf key-chain {
type key-chain:key-chain-ref;
description
"Name of the key chain.";
}
}
case auth-key-explicit {
leaf key-id {
type uint32;
description
"Key identifier.";
}
leaf key {
type string;
description
"OSPF authentication key.
This model only supports the subset of keys that
are representable as ASCII strings.";
}
leaf crypto-algorithm {
type identityref {
base key-chain:crypto-algorithm;
}
description
"Indicates the cryptographic algorithm associated with
the key.";
}
}
}
}
}
}
grouping isis-authentication {
description
"IS-IS authentication configuration.";
container authentication {
description
"Container for IS-IS authentication parameters.";
leaf enable {
type boolean;
default "false";
description
"Enables or disables authentication.";
}
container keying-material {
when "../enable = 'true'";
description
"Container for describing how an IS-IS session for an AC.";
choice option {
description
"Options for IS-IS authentication.";
case auth-key-chain {
leaf key-chain {
type key-chain:key-chain-ref;
description
"Name of the key chain.";
}
}
case auth-key-explicit {
leaf key-id {
type uint32;
description
"Key identifier.";
}
leaf key {
type string;
description
"IS-IS authentication key.
This model only supports the subset of keys that
are representable as ASCII strings.";
}
leaf crypto-algorithm {
type identityref {
base key-chain:crypto-algorithm;
}
description
"Indicates the cryptographic algorithm associated with
the key.";
}
}
}
}
}
}
grouping rip-authentication {
description
"RIP authentication configuration.";
container authentication {
description
"Container for RIP authentication parameters.";
leaf enable {
type boolean;
default "false";
description
"Enables or disables authentication.";
}
container keying-material {
when "../enable = 'true'";
description
"Container for describing how a RIP
session is to be secured between a CE
and a PE.";
choice option {
description
"Specifies the authentication
scheme.";
case auth-key-chain {
leaf key-chain {
type key-chain:key-chain-ref;
description
"Name of the key chain.";
}
}
case auth-key-explicit {
leaf key {
type string;
description
"RIP authentication key.
This model only supports the subset of keys that
are representable as ASCII strings.";
}
leaf crypto-algorithm {
type identityref {
base key-chain:crypto-algorithm;
}
description
"Indicates the cryptographic algorithm associated with
the key.";
}
}
}
}
}
}
grouping ac-security {
description
"AC-specific security parameters.";
container encryption {
if-feature "vpn-common:encryption";
description
"Container for AC security encryption.";
leaf enabled {
type boolean;
default "false";
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.";
uses encryption-choice;
}
}
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-profiles {
key "id";
description
"Routing profiles.";
leaf id {
type routing-profile-reference;
description
"Reference to the routing profile to be used.";
}
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 a
static routing protocol.";
}
description
"Configuration specific to static
routing.";
container cascaded-lan-prefixes {
description
"LAN prefixes from the customer.";
list ipv4-lan-prefixes {
if-feature "vpn-common:ipv4";
key "lan next-hop";
description
"List of LAN prefixes for the site.";
leaf lan {
type inet:ipv4-prefix;
description
"LAN prefixes.";
}
leaf lan-tag {
type string;
description
"Internal tag to be used in VPN policies.";
}
leaf next-hop {
type union {
type inet:ip-address;
type predefined-next-hop;
}
description
"The next hop that is to be used for the static route.
This may be specified as an IP address or a
predefined next-hop type (e.g., 'discard' or
'local-link').";
}
leaf metric {
type uint32;
description
"Indicates the metric associated with the static route.";
}
uses vpn-common:service-status;
}
list ipv6-lan-prefixes {
if-feature "vpn-common:ipv6";
key "lan next-hop";
description
"List of LAN prefixes for the site.";
leaf lan {
type inet:ipv6-prefix;
description
"LAN prefixes.";
}
leaf lan-tag {
type string;
description
"Internal tag to be used in VPN policies.";
}
leaf next-hop {
type union {
type inet:ip-address;
type predefined-next-hop;
}
description
"The next hop that is to be used for the static route.
This may be specified as an IP address or a predefined
next-hop type (e.g., 'discard' or 'local-link').";
}
leaf metric {
type uint32;
description
"Indicates the metric associated with the static route.";
}
uses vpn-common:service-status;
}
}
}
container bgp {
when "derived-from-or-self(../type, "
+ "'vpn-common:bgp-routing')" {
description
"Only applies when the protocol is BGP.";
}
description
"Configuration specific to BGP.";
container peer-groups {
description
"Configuration for BGP peer-groups";
list peer-group {
key "name";
description
"List of BGP peer-groups configured on the local system -
uniquely identified by peer-group name";
leaf name {
type string;
description
"Name of the BGP peer-group.";
}
leaf local-address {
type inet:ip-address;
config false;
description
"The local IP address that will be used to establish
the BGP session.";
}
leaf local-as {
type inet:as-number;
config false;
description
"Indicates a local AS Number (ASN), if
an ASN distinct from the ASN configured
at the peer group level is needed.";
}
leaf peer-as {
type inet:as-number;
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.";
}
uses bgp-authentication;
}
}
list neighbor {
key "id";
description
"List of BGP neighbors.";
leaf id {
type string;
description
"A neighbor identifier.";
}
leaf remote-address {
type inet:ip-address;
description
"The remote IP address of this entry's BGP peer.
If this leaf is not present, this means that the primary
customer IP address is used as remote IP address.";
}
leaf local-address {
type inet:ip-address;
config false;
description
"The local IP address that will be used to establish
the BGP session.";
}
leaf peer-group {
type leafref {
path "../../peer-groups/peer-group/name";
}
description
"The peer-group with which this neighbor is
associated.";
}
leaf local-as {
type inet:as-number;
config false;
description
"Indicates a local ASN.";
}
leaf peer-as {
type inet:as-number;
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.";
}
uses bgp-authentication;
uses vpn-common:service-status;
}
}
container ospf {
when "derived-from-or-self(../type, "
+ "'vpn-common:ospf-routing')" {
description
"Only applies when the protocol is OSPF.";
}
description
"Configuration specific to OSPF.";
leaf address-family {
type identityref {
base vpn-common:address-family;
}
description
"Indicates whether IPv4, IPv6, or
both are to be activated.";
}
leaf area-id {
type yang:dotted-quad;
mandatory true;
description
"Area ID.";
reference
"RFC 4577: OSPF as the Provider/Customer Edge Protocol
for BGP/MPLS IP Virtual Private Networks
(VPNs), Section 4.2.3
RFC 6565: OSPFv3 as a Provider Edge to Customer Edge
(PE-CE) Routing Protocol, Section 4.2";
}
leaf metric {
type uint16;
default "1";
description
"Metric of the ACE. It is used in the routing state
calculation and path selection.";
}
uses ospf-authentication;
uses vpn-common:service-status;
}
container isis {
when "derived-from-or-self(../type, "
+ "'vpn-common:isis-routing')" {
description
"Only applies when the protocol is IS-IS.";
}
description
"Configuration specific to IS-IS.";
leaf address-family {
type identityref {
base vpn-common:address-family;
}
description
"Indicates whether IPv4, IPv6, or both
are to be activated.";
}
leaf area-address {
type area-address;
mandatory true;
description
"Area address.";
}
uses isis-authentication;
uses vpn-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.";
}
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.";
}
uses rip-authentication;
uses vpn-common:service-status;
}
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).";
}
description
"Configuration specific to VRRP.";
reference
"RFC 5798: 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.";
}
uses vpn-common:service-status;
}
}
}
grouping ac {
description
"Grouping for an attachment circuit.";
leaf name {
type string;
description
"A name of the AC. Data models that need to
reference an attachment circuits should use
attachment-circuit-reference.";
}
// Layer 2
container l2-connection {
description
"Defines Layer 2 protocols and parameters that
are required to enable AC connectivity.";
uses l2-connection;
}
// Layer 3
container ip-connection {
description
"Defines IP connection parameters.";
uses ip-connection;
}
// Routing
container routing-protocols {
description
"Defines routing protocols.";
uses routing;
}
// OAM
container oam {
description
"Defines the Operations, Administration, and Maintenance
(OAM) mechanisms used.
BFD is set as a fault detection mechanism,
but other mechanisms can be defined in the future.";
container bfd {
if-feature "vpn-common:bfd";
description
"Container for BFD.";
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.
If the provider doesn't allow the customer to
use this function, fixed values will not be set.";
reference
"RFC 5880: Bidirectional Forwarding
Detection (BFD), Section 6.8.18";
}
uses vpn-common:service-status;
}
}
// Security
container security {
description
"AC-specific security parameters.";
uses ac-security;
}
}
grouping ac-profile {
description
"Grouping for an attachment circuit.";
leaf id {
type string;
description
"An identifier of the AC.";
}
// Layer 2
container l2-connection {
description
"Defines Layer 2 protocols and parameters that
are required to enable AC connectivity.";
uses l2-connection-profile;
}
// Layer 3
container ip-connection {
description
"Defines IP connection parameters.";
uses ip-connection-global-profile;
}
// Routing
container routing-protocols {
description
"Defines routing protocols.";
uses routing-profile;
}
// OAM
container oam {
description
"Defines the OAM mechanisms used.
BFD is set as a fault detection mechanism, but
other mechanisms can be defined in the future.";
container bfd {
if-feature "vpn-common:bfd";
description
"Container for BFD.";
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.
If the provider doesn't allow the customer to use
this function, fixed values will not be set.";
reference
"RFC 5880: Bidirectional Forwarding
Detection (BFD), Section 6.8.18";
}
}
}
// Security
container security {
description
"AC-specific security parameters.";
uses ac-security;
}
}
grouping op-instructions {
description
"Scheduling instructions.";
leaf requested-start {
type yang:date-and-time;
description
"Indicates the requested date and time when the AC is
expected to be active.";
}
leaf requested-stop {
type yang:date-and-time;
description
"Indicates the requested date and time when the AC is
expected to be disabled.";
}
leaf actual-start {
type yang:date-and-time;
config false;
description
"Indciates the actual date and time when the AC
actually was enabled.";
}
leaf actual-stop {
type yang:date-and-time;
config false;
description
"Indciates the actual date and time when the AC
actually was disabled.";
}
}
container specific-provisioning-profiles {
description
"Contains a set of valid profiles to reference for an AC.";
uses vpn-common:vpn-profile-cfg;
}
container service-provisioning-profiles {
description
"Contains a set of valid profiles to reference for an AC.";
list service-profile-identifier {
key "id";
description
"List of generic service profile identifiers.";
leaf id {
type string;
description
"Identification of the service profile to be used.
the profile only has significance within the service
provider's administrative domain.";
}
}
}
container bearers {
description
"Main container for the bearers.";
list bearer {
key "id";
description
"Maintains a list of bearers.";
leaf id {
type string;
description
"An identifier of the bearer.";
}
leaf description {
type string;
description
"A description of this bearer.";
}
container customer-device {
description
"Identification of the customer device that terminates the
bearer.";
leaf device-id {
type string;
description
"Identifier for the device.";
}
container location {
description
"Location of the node.";
leaf address {
type string;
description
"Address (number and street) of the site.";
}
leaf postal-code {
type string;
description
"Postal code of the site.";
}
leaf state {
type string;
description
"State of the site. This leaf can also be
used to describe a region for a country that
does not have states.";
}
leaf city {
type string;
description
"City of the site.";
}
leaf country-code {
type string {
pattern '[A-Z]{2}';
}
description
"Country of the site.
Expressed as ISO ALPHA-2 code.";
}
}
}
leaf requested-type {
type identityref {
base bearer-type;
}
description
"Type of the requested bearer (e.g., Ethernet, or wireless)";
}
leaf bearer-reference {
if-feature "vpn-common:bearer-reference";
type string;
config false;
description
"This is an internal reference for the service provider
to identify the bearer associated with this AC.";
}
uses op-instructions;
}
}
container attachment-circuits {
description
"Main container for the attachment circuits.";
list ac-global-profile {
key "id";
description
"Maintains a list of AC profiles.";
uses ac-profile;
}
list ac-node-group {
key "id";
description
"Maintains a list of per-node AC profiles.";
leaf id {
type string;
description
"An identifier of the AC group.";
}
uses ac;
}
list ac {
key "name";
description
"Global provisioning of attachment circuits.";
leaf customer-name {
type string;
description
"Indicates the name of the customer that requested this
AC.";
}
leaf description {
type string;
description
"Associates a description with an AC.";
}
uses op-instructions;
leaf-list peer-sap-id {
type string;
description
"One or more peer SAPs can be indicated.";
}
leaf-list ac-global-profile {
type ac-global-profile-reference;
description
"A reference to an AC profile.";
}
leaf-list ac-node-profile {
type ac-node-group-reference;
description
"A reference to a per-node AC profile.";
}
uses ac;
}
}
}
<CODE ENDS>¶
6. Security Considerations
The YANG module specified in this document define a schema for data that is designed to be accessed via network management protocols such as NETCONF [RFC6241] or RESTCONF [RFC8040]. The lowest NETCONF layer is the secure transport layer, and the mandatory-to-implement secure transport is Secure Shell (SSH) [RFC6242]. The lowest RESTCONF layer is HTTPS, and the mandatory-to-implement secure transport is TLS [RFC8446].¶
The Network Configuration Access Control Model (NACM) [RFC8341] 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). These data nodes may be considered 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. These are the subtrees and data nodes and their sensitivity/ vulnerability in the "ietf-ac-svc" module:¶
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. These are the subtrees and data nodes and their sensitivity/vulnerability in the "ietf-ac-svc" module:¶
7. IANA Considerations
IANA is requested to register the following URI in the "ns" subregistry within the "IETF XML Registry" [RFC3688]:¶
URI: urn:ietf:params:xml:ns:yang:ietf-ac-svc Registrant Contact: The IESG. XML: N/A; the requested URI is an XML namespace.¶
IANA is requested to register the following YANG module in the "YANG Module Names" subregistry [RFC6020] within the "YANG Parameters" registry.¶
Name: ietf-ac-svc Maintained by IANA? N Namespace: urn:ietf:params:xml:ns:yang:ietf-ac-svc Prefix: ac Reference: RFC xxxx¶
8. References
8.1. Normative References
- [I-D.ietf-opsawg-sap]
- Boucadair, M., de Dios, O. G., Barguil, S., Wu, Q., and V. Lopez, "A YANG Network Model for Service Attachment Points (SAPs)", Work in Progress, Internet-Draft, draft-ietf-opsawg-sap-15, , <https://datatracker.ietf.org/doc/html/draft-ietf-opsawg-sap-15>.
- [ISO10589]
- ISO, "Information technology - Telecommunications and information exchange between systems - Intermediate System to Intermediate System intra-domain routeing information exchange protocol for use in conjunction with the protocol for providing the connectionless-mode network service (ISO8473)", , <https://www.iso.org/standard/30932.html>.
- [RFC1195]
- Callon, R., "Use of OSI IS-IS for routing in TCP/IP and dual environments", RFC 1195, DOI 10.17487/RFC1195, , <https://www.rfc-editor.org/rfc/rfc1195>.
- [RFC2080]
- Malkin, G. and R. Minnear, "RIPng for IPv6", RFC 2080, DOI 10.17487/RFC2080, , <https://www.rfc-editor.org/rfc/rfc2080>.
- [RFC2119]
- Bradner, S., "Key words for use in RFCs to Indicate Requirement Levels", BCP 14, RFC 2119, DOI 10.17487/RFC2119, , <https://www.rfc-editor.org/rfc/rfc2119>.
- [RFC2453]
- Malkin, G., "RIP Version 2", STD 56, RFC 2453, DOI 10.17487/RFC2453, , <https://www.rfc-editor.org/rfc/rfc2453>.
- [RFC3688]
- Mealling, M., "The IETF XML Registry", BCP 81, RFC 3688, DOI 10.17487/RFC3688, , <https://www.rfc-editor.org/rfc/rfc3688>.
- [RFC4271]
- Rekhter, Y., Ed., Li, T., Ed., and S. Hares, Ed., "A Border Gateway Protocol 4 (BGP-4)", RFC 4271, DOI 10.17487/RFC4271, , <https://www.rfc-editor.org/rfc/rfc4271>.
- [RFC4577]
- Rosen, E., Psenak, P., and P. Pillay-Esnault, "OSPF as the Provider/Customer Edge Protocol for BGP/MPLS IP Virtual Private Networks (VPNs)", RFC 4577, DOI 10.17487/RFC4577, , <https://www.rfc-editor.org/rfc/rfc4577>.
- [RFC5308]
- Hopps, C., "Routing IPv6 with IS-IS", RFC 5308, DOI 10.17487/RFC5308, , <https://www.rfc-editor.org/rfc/rfc5308>.
- [RFC5798]
- Nadas, S., Ed., "Virtual Router Redundancy Protocol (VRRP) Version 3 for IPv4 and IPv6", RFC 5798, DOI 10.17487/RFC5798, , <https://www.rfc-editor.org/rfc/rfc5798>.
- [RFC5880]
- Katz, D. and D. Ward, "Bidirectional Forwarding Detection (BFD)", RFC 5880, DOI 10.17487/RFC5880, , <https://www.rfc-editor.org/rfc/rfc5880>.
- [RFC6020]
- Bjorklund, M., Ed., "YANG - A Data Modeling Language for the Network Configuration Protocol (NETCONF)", RFC 6020, DOI 10.17487/RFC6020, , <https://www.rfc-editor.org/rfc/rfc6020>.
- [RFC6241]
- Enns, R., Ed., Bjorklund, M., Ed., Schoenwaelder, J., Ed., and A. Bierman, Ed., "Network Configuration Protocol (NETCONF)", RFC 6241, DOI 10.17487/RFC6241, , <https://www.rfc-editor.org/rfc/rfc6241>.
- [RFC6242]
- Wasserman, M., "Using the NETCONF Protocol over Secure Shell (SSH)", RFC 6242, DOI 10.17487/RFC6242, , <https://www.rfc-editor.org/rfc/rfc6242>.
- [RFC6565]
- Pillay-Esnault, P., Moyer, P., Doyle, J., Ertekin, E., and M. Lundberg, "OSPFv3 as a Provider Edge to Customer Edge (PE-CE) Routing Protocol", RFC 6565, DOI 10.17487/RFC6565, , <https://www.rfc-editor.org/rfc/rfc6565>.
- [RFC6991]
- Schoenwaelder, J., Ed., "Common YANG Data Types", RFC 6991, DOI 10.17487/RFC6991, , <https://www.rfc-editor.org/rfc/rfc6991>.
- [RFC8040]
- Bierman, A., Bjorklund, M., and K. Watsen, "RESTCONF Protocol", RFC 8040, DOI 10.17487/RFC8040, , <https://www.rfc-editor.org/rfc/rfc8040>.
- [RFC8174]
- Leiba, B., "Ambiguity of Uppercase vs Lowercase in RFC 2119 Key Words", BCP 14, RFC 8174, DOI 10.17487/RFC8174, , <https://www.rfc-editor.org/rfc/rfc8174>.
- [RFC8177]
- Lindem, A., Ed., Qu, Y., Yeung, D., Chen, I., and J. Zhang, "YANG Data Model for Key Chains", RFC 8177, DOI 10.17487/RFC8177, , <https://www.rfc-editor.org/rfc/rfc8177>.
- [RFC8341]
- Bierman, A. and M. Bjorklund, "Network Configuration Access Control Model", STD 91, RFC 8341, DOI 10.17487/RFC8341, , <https://www.rfc-editor.org/rfc/rfc8341>.
- [RFC8342]
- Bjorklund, M., Schoenwaelder, J., Shafer, P., Watsen, K., and R. Wilton, "Network Management Datastore Architecture (NMDA)", RFC 8342, DOI 10.17487/RFC8342, , <https://www.rfc-editor.org/rfc/rfc8342>.
- [RFC8446]
- Rescorla, E., "The Transport Layer Security (TLS) Protocol Version 1.3", RFC 8446, DOI 10.17487/RFC8446, , <https://www.rfc-editor.org/rfc/rfc8446>.
- [RFC9181]
- Barguil, S., Gonzalez de Dios, O., Ed., Boucadair, M., Ed., and Q. Wu, "A Common YANG Data Model for Layer 2 and Layer 3 VPNs", RFC 9181, DOI 10.17487/RFC9181, , <https://www.rfc-editor.org/rfc/rfc9181>.
8.2. Informative References
- [I-D.ietf-teas-ietf-network-slice-nbi-yang]
- Wu, B., Dhody, D., Rokui, R., Saad, T., Han, L., and J. Mullooly, "IETF Network Slice Service YANG Model", Work in Progress, Internet-Draft, draft-ietf-teas-ietf-network-slice-nbi-yang-03, , <https://datatracker.ietf.org/doc/html/draft-ietf-teas-ietf-network-slice-nbi-yang-03>.
- [RFC3644]
- Snir, Y., Ramberg, Y., Strassner, J., Cohen, R., and B. Moore, "Policy Quality of Service (QoS) Information Model", RFC 3644, DOI 10.17487/RFC3644, , <https://www.rfc-editor.org/rfc/rfc3644>.
- [RFC7665]
- Halpern, J., Ed. and C. Pignataro, Ed., "Service Function Chaining (SFC) Architecture", RFC 7665, DOI 10.17487/RFC7665, , <https://www.rfc-editor.org/rfc/rfc7665>.
- [RFC8340]
- Bjorklund, M. and L. Berger, Ed., "YANG Tree Diagrams", BCP 215, RFC 8340, DOI 10.17487/RFC8340, , <https://www.rfc-editor.org/rfc/rfc8340>.
Appendix A. Full Tree
module: ietf-ac-svc
+--rw specific-provisioning-profiles
| +--rw valid-provider-identifiers
| +--rw external-connectivity-identifier* [id]
| | {external-connectivity}?
| | +--rw id string
| +--rw encryption-profile-identifier* [id]
| | +--rw id string
| +--rw qos-profile-identifier* [id]
| | +--rw id string
| +--rw bfd-profile-identifier* [id]
| | +--rw id string
| +--rw forwarding-profile-identifier* [id]
| | +--rw id string
| +--rw routing-profile-identifier* [id]
| +--rw id string
+--rw service-provisioning-profiles
| +--rw service-profile-identifier* [id]
| +--rw id string
+--rw bearers
| +--rw bearer* [id]
| +--rw id string
| +--rw description? string
| +--rw customer-device
| | +--rw device-id? string
| | +--rw location
| | +--rw address? string
| | +--rw postal-code? string
| | +--rw state? string
| | +--rw city? string
| | +--rw country-code? string
| +--rw requested-type? identityref
| +--ro bearer-reference? string
| | {vpn-common:bearer-reference}?
| +--rw requested-start? yang:date-and-time
| +--rw requested-stop? yang:date-and-time
| +--ro actual-start? yang:date-and-time
| +--ro actual-stop? yang:date-and-time
+--rw attachment-circuits
+--rw ac-global-profile* [id]
| +--rw id string
| +--rw l2-connection
| | +--rw encapsulation
| | +--rw type? identityref
| | +--rw dot1q
| | | +--rw tag-type? identityref
| | | +--rw cvlan-id? uint16
| | +--rw qinq
| | +--rw tag-type? identityref
| | +--rw svlan-id uint16
| | +--rw cvlan-id uint16
| +--rw ip-connection
| | +--rw ipv4 {vpn-common:ipv4}?
| | | +--rw prefix-length? uint8
| | | +--rw address-allocation-type? identityref
| | | +--rw (allocation-type)?
| | | +--:(dynamic)
| | | +--rw (provider-dhcp)?
| | | | +--:(dhcp-service-type)
| | | | +--rw dhcp-service-type? enumeration
| | | +--rw (dhcp-relay)?
| | | +--:(customer-dhcp-servers)
| | | +--rw customer-dhcp-servers
| | | +--rw server-ip-address*
| | | inet:ipv4-address
| | +--rw ipv6 {vpn-common:ipv6}?
| | +--rw prefix-length? uint8
| | +--rw address-allocation-type? identityref
| | +--rw (allocation-type)?
| | +--:(dynamic)
| | +--rw (provider-dhcp)?
| | | +--:(dhcp-service-type)
| | | +--rw dhcp-service-type? enumeration
| | +--rw (dhcp-relay)?
| | +--:(customer-dhcp-servers)
| | +--rw customer-dhcp-servers
| | +--rw server-ip-address*
| | inet:ipv6-address
| +--rw routing-protocols
| | +--rw routing-protocol* [id]
| | +--rw id string
| | +--rw type? identityref
| | +--rw routing-profiles* [id]
| | | +--rw id routing-profile-reference
| | | +--rw type? identityref
| | +--rw bgp
| | | +--rw peer-groups
| | | +--rw peer-group* [name]
| | | +--rw name string
| | | +--ro local-as? inet:as-number
| | | +--rw peer-as? inet:as-number
| | | +--rw address-family? identityref
| | +--rw ospf
| | | +--rw address-family? identityref
| | | +--rw area-id yang:dotted-quad
| | | +--rw metric? uint16
| | +--rw isis
| | | +--rw address-family? identityref
| | | +--rw area-address area-address
| | +--rw rip
| | | +--rw address-family? identityref
| | +--rw vrrp
| | +--rw address-family? identityref
| +--rw oam
| | +--rw bfd {vpn-common:bfd}?
| | +--rw holdtime? uint32
| +--rw security
| +--rw encryption {vpn-common:encryption}?
| | +--rw enabled? boolean
| | +--rw layer? enumeration
| +--rw encryption-profile
| +--rw (profile)?
| +--:(provider-profile)
| | +--rw provider-profile?
| | ac-svc:encryption-profile-reference
| +--:(customer-profile)
| +--rw customer-key-chain?
| key-chain:key-chain-ref
+--rw ac-node-group* [id]
| +--rw id string
| +--rw name? string
| +--rw l2-connection
| | +--rw encapsulation
| | | +--rw type? identityref
| | | +--rw dot1q
| | | | +--rw tag-type? identityref
| | | | +--rw cvlan-id? uint16
| | | +--rw priority-tagged
| | | | +--rw tag-type? identityref
| | | +--rw qinq
| | | +--rw tag-type? identityref
| | | +--rw svlan-id uint16
| | | +--rw cvlan-id uint16
| | +--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 bearer-reference? string
| | {vpn-common:bearer-reference}?
| +--rw ip-connection
| | +--rw ipv4 {vpn-common:ipv4}?
| | | +--rw local-address?
| | | | inet:ipv4-address
| | | +--rw virtual-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
| | | | +--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 ipv6 {vpn-common:ipv6}?
| | +--rw local-address?
| | | inet:ipv6-address
| | +--rw virtual-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
| | | +--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 routing-protocols
| | +--rw routing-protocol* [id]
| | +--rw id string
| | +--rw type? identityref
| | +--rw routing-profiles* [id]
| | | +--rw id routing-profile-reference
| | | +--rw type? identityref
| | +--rw static
| | | +--rw cascaded-lan-prefixes
| | | +--rw ipv4-lan-prefixes* [lan next-hop]
| | | | {vpn-common:ipv4}?
| | | | +--rw lan inet:ipv4-prefix
| | | | +--rw lan-tag? string
| | | | +--rw next-hop union
| | | | +--rw metric? uint32
| | | | +--rw status
| | | | +--rw admin-status
| | | | | +--rw status? identityref
| | | | | +--rw last-change? yang:date-and-time
| | | | +--ro oper-status
| | | | +--ro status? identityref
| | | | +--ro last-change? yang:date-and-time
| | | +--rw ipv6-lan-prefixes* [lan next-hop]
| | | {vpn-common:ipv6}?
| | | +--rw lan inet:ipv6-prefix
| | | +--rw lan-tag? string
| | | +--rw next-hop union
| | | +--rw metric? uint32
| | | +--rw status
| | | +--rw admin-status
| | | | +--rw status? identityref
| | | | +--rw last-change? yang:date-and-time
| | | +--ro oper-status
| | | +--ro status? identityref
| | | +--ro last-change? yang:date-and-time
| | +--rw bgp
| | | +--rw peer-groups
| | | | +--rw peer-group* [name]
| | | | +--rw name string
| | | | +--ro local-address? inet:ip-address
| | | | +--ro local-as? inet:as-number
| | | | +--rw peer-as? inet:as-number
| | | | +--rw address-family? identityref
| | | +--rw neighbor* [id]
| | | +--rw id string
| | | +--rw remote-address? inet:ip-address
| | | +--ro local-address? inet:ip-address
| | | +--rw peer-group?
| | | | -> ../../peer-groups/peer-group/name
| | | +--ro local-as? inet:as-number
| | | +--rw peer-as? inet:as-number
| | | +--rw address-family? identityref
| | | +--rw status
| | | +--rw admin-status
| | | | +--rw status? identityref
| | | | +--rw last-change? yang:date-and-time
| | | +--ro oper-status
| | | +--ro status? identityref
| | | +--ro last-change? yang:date-and-time
| | +--rw ospf
| | | +--rw address-family? identityref
| | | +--rw area-id yang:dotted-quad
| | | +--rw metric? uint16
| | | +--rw status
| | | +--rw admin-status
| | | | +--rw status? identityref
| | | | +--rw last-change? yang:date-and-time
| | | +--ro oper-status
| | | +--ro status? identityref
| | | +--ro last-change? yang:date-and-time
| | +--rw isis
| | | +--rw address-family? identityref
| | | +--rw area-address area-address
| | | +--rw status
| | | +--rw admin-status
| | | | +--rw status? identityref
| | | | +--rw last-change? yang:date-and-time
| | | +--ro oper-status
| | | +--ro status? identityref
| | | +--ro last-change? yang:date-and-time
| | +--rw rip
| | | +--rw address-family? identityref
| | | +--rw status
| | | +--rw admin-status
| | | | +--rw status? identityref
| | | | +--rw last-change? yang:date-and-time
| | | +--ro oper-status
| | | +--ro status? identityref
| | | +--ro last-change? yang:date-and-time
| | +--rw vrrp
| | +--rw address-family? identityref
| | +--rw status
| | +--rw admin-status
| | | +--rw status? identityref
| | | +--rw 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 holdtime? uint32
| | +--rw status
| | +--rw admin-status
| | | +--rw status? identityref
| | | +--rw 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 provider-profile?
| | ac-svc:encryption-profile-reference
| +--:(customer-profile)
| +--rw customer-key-chain?
| key-chain:key-chain-ref
+--rw ac* [name]
+--rw customer-name? string
+--rw description? string
+--rw requested-start? yang:date-and-time
+--rw requested-stop? yang:date-and-time
+--ro actual-start? yang:date-and-time
+--ro actual-stop? yang:date-and-time
+--rw peer-sap-id* string
+--rw ac-global-profile* ac-global-profile-reference
+--rw ac-node-profile* ac-node-group-reference
+--rw name string
+--rw l2-connection
| +--rw encapsulation
| | +--rw type? identityref
| | +--rw dot1q
| | | +--rw tag-type? identityref
| | | +--rw cvlan-id? uint16
| | +--rw priority-tagged
| | | +--rw tag-type? identityref
| | +--rw qinq
| | +--rw tag-type? identityref
| | +--rw svlan-id uint16
| | +--rw cvlan-id uint16
| +--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 bearer-reference? string
| {vpn-common:bearer-reference}?
+--rw ip-connection
| +--rw ipv4 {vpn-common:ipv4}?
| | +--rw local-address?
| | | inet:ipv4-address
| | +--rw virtual-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
| | | +--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 ipv6 {vpn-common:ipv6}?
| +--rw local-address?
| | inet:ipv6-address
| +--rw virtual-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
| | +--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 routing-protocols
| +--rw routing-protocol* [id]
| +--rw id string
| +--rw type? identityref
| +--rw routing-profiles* [id]
| | +--rw id routing-profile-reference
| | +--rw type? identityref
| +--rw static
| | +--rw cascaded-lan-prefixes
| | +--rw ipv4-lan-prefixes* [lan next-hop]
| | | {vpn-common:ipv4}?
| | | +--rw lan inet:ipv4-prefix
| | | +--rw lan-tag? string
| | | +--rw next-hop union
| | | +--rw metric? uint32
| | | +--rw status
| | | +--rw admin-status
| | | | +--rw status? identityref
| | | | +--rw last-change? yang:date-and-time
| | | +--ro oper-status
| | | +--ro status? identityref
| | | +--ro last-change? yang:date-and-time
| | +--rw ipv6-lan-prefixes* [lan next-hop]
| | {vpn-common:ipv6}?
| | +--rw lan inet:ipv6-prefix
| | +--rw lan-tag? string
| | +--rw next-hop union
| | +--rw metric? uint32
| | +--rw status
| | +--rw admin-status
| | | +--rw status? identityref
| | | +--rw last-change? yang:date-and-time
| | +--ro oper-status
| | +--ro status? identityref
| | +--ro last-change? yang:date-and-time
| +--rw bgp
| | +--rw peer-groups
| | | +--rw peer-group* [name]
| | | +--rw name string
| | | +--ro local-address? inet:ip-address
| | | +--ro local-as? inet:as-number
| | | +--rw peer-as? inet:as-number
| | | +--rw address-family? identityref
| | +--rw neighbor* [id]
| | +--rw id string
| | +--rw remote-address? inet:ip-address
| | +--ro local-address? inet:ip-address
| | +--rw peer-group?
| | | -> ../../peer-groups/peer-group/name
| | +--ro local-as? inet:as-number
| | +--rw peer-as? inet:as-number
| | +--rw address-family? identityref
| | +--rw status
| | +--rw admin-status
| | | +--rw status? identityref
| | | +--rw last-change? yang:date-and-time
| | +--ro oper-status
| | +--ro status? identityref
| | +--ro last-change? yang:date-and-time
| +--rw ospf
| | +--rw address-family? identityref
| | +--rw area-id yang:dotted-quad
| | +--rw metric? uint16
| | +--rw status
| | +--rw admin-status
| | | +--rw status? identityref
| | | +--rw last-change? yang:date-and-time
| | +--ro oper-status
| | +--ro status? identityref
| | +--ro last-change? yang:date-and-time
| +--rw isis
| | +--rw address-family? identityref
| | +--rw area-address area-address
| | +--rw status
| | +--rw admin-status
| | | +--rw status? identityref
| | | +--rw last-change? yang:date-and-time
| | +--ro oper-status
| | +--ro status? identityref
| | +--ro last-change? yang:date-and-time
| +--rw rip
| | +--rw address-family? identityref
| | +--rw status
| | +--rw admin-status
| | | +--rw status? identityref
| | | +--rw last-change? yang:date-and-time
| | +--ro oper-status
| | +--ro status? identityref
| | +--ro last-change? yang:date-and-time
| +--rw vrrp
| +--rw address-family? identityref
| +--rw status
| +--rw admin-status
| | +--rw status? identityref
| | +--rw 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 holdtime? uint32
| +--rw status
| +--rw admin-status
| | +--rw status? identityref
| | +--rw 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 provider-profile?
| ac-svc:encryption-profile-reference
+--:(customer-profile)
+--rw customer-key-chain?
key-chain:key-chain-ref
Appendix B. Augmentation to Other Service-Specific Models to Bind a Service to an AC
B.1. Tree
ACs creates using the ietf-ac-svc module can be references in other modules (L2SM, L3SM, L2NM, L3NM, and Slicing). The tree structure of the augmentation is shown in Figure 29¶
module: ietf-ac-glue
augment /l3vpn-svc:l3vpn-svc/l3vpn-svc:sites/l3vpn-svc:site
/l3vpn-svc:site-network-accesses
/l3vpn-svc:site-network-access:
+--rw ac-ref* ac-svc:attachment-circuit-reference
augment /l2vpn-svc:l2vpn-svc/l2vpn-svc:sites/l2vpn-svc:site
/l2vpn-svc:site-network-accesses
/l2vpn-svc:site-network-access:
+--rw ac-ref* ac-svc:attachment-circuit-reference
augment /l3nm:l3vpn-ntw/l3nm:vpn-services/l3nm:vpn-service
/l3nm:vpn-nodes/l3nm:vpn-node/l3nm:vpn-network-accesses
/l3nm:vpn-network-access:
+--rw ac-ref* ac-svc:attachment-circuit-reference
augment /l2nm:l2vpn-ntw/l2nm:vpn-services/l2nm:vpn-service
/l2nm:vpn-nodes/l2nm:vpn-node/l2nm:vpn-network-accesses
/l2nm:vpn-network-access:
+--rw ac-ref* ac-svc:attachment-circuit-reference
augment /ietf-nss:network-slice-services/ietf-nss:slice-service
/ietf-nss:sdps/ietf-nss:sdp:
+--rw ac-ref* ac-svc:attachment-circuit-reference
B.2. Module
<CODE BEGINS> file "ietf-ac-glue@2022-11-30.yang"
module ietf-ac-glue {
yang-version 1.1;
namespace "urn:ietf:params:xml:ns:yang:ietf-ac-glue";
prefix ac-glue;
import ietf-l3vpn-svc {
prefix l3vpn-svc;
reference
"RFC 8299: xxxx";
}
import ietf-l2vpn-svc {
prefix l2vpn-svc;
reference
"RFC 8466: xxxx";
}
import ietf-l3vpn-ntw {
prefix l3nm;
reference
"RFC 9182: xxxx";
}
import ietf-l2vpn-ntw {
prefix l2nm;
reference
"RFC 9291: xxxx";
}
import ietf-network-slice-service {
prefix ietf-nss;
reference
"RFC XXXX: xxxx";
}
import ietf-ac-svc {
prefix ac-svc;
reference
"RFC xxx: XXXX";
}
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>";
description
"This YANG module defines a generic YANG model for
the configuration of attachment circuits.
Copyright (c) 2023 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 xxx; see the
RFC itself for full legal notices.";
revision 2022-11-30 {
description
"Initial revision.";
reference
"RFC xxxx: A YANG Network Data Model for Attachment Circuits";
}
grouping ac-glue {
description
"A set of AC-related data.";
leaf-list ac-ref {
type ac-svc:attachment-circuit-reference;
description
"A reference to the AC as exposed at the service that
was provisionned using the AC module.";
}
}
augment "/l3vpn-svc:l3vpn-svc"
+ "/l3vpn-svc:sites/l3vpn-svc:site"
+ "/l3vpn-svc:site-network-accesses/l3vpn-svc:site-network-access" {
description
"Augments VPN network access with AC provisioning details.";
uses ac-glue;
}
augment "/l2vpn-svc:l2vpn-svc"
+ "/l2vpn-svc:sites/l2vpn-svc:site"
+ "/l2vpn-svc:site-network-accesses/l2vpn-svc:site-network-access" {
description
"Augments VPN network access with AC provisioning details.";
uses ac-glue;
}
augment "/l3nm:l3vpn-ntw/l3nm:vpn-services/l3nm:vpn-service"
+ "/l3nm:vpn-nodes/l3nm:vpn-node"
+ "/l3nm:vpn-network-accesses/l3nm:vpn-network-access" {
description
"Augments VPN network access with AC provisioning details.";
uses ac-glue;
}
augment "/l2nm:l2vpn-ntw/l2nm:vpn-services/l2nm:vpn-service"
+ "/l2nm:vpn-nodes/l2nm:vpn-node"
+ "/l2nm:vpn-network-accesses/l2nm:vpn-network-access" {
description
"Augments VPN network access with AC provisioning details.";
uses ac-glue;
}
augment "/ietf-nss:network-slice-services/ietf-nss:slice-service"
+ "/ietf-nss:sdps/ietf-nss:sdp" {
description
"Augments VPN network access with AC provisioning details.";
uses ac-glue;
}
}
<CODE ENDS>¶
Acknowledgments
TODO acknowledge.¶
Contributors
TODO contribute.¶