|Internet-Draft||MPLS TE Tunnels YANG Data Model||May 2023|
|Saad, et al.||Expires 27 November 2023||[Page]|
- TEAS Working Group
- Intended Status:
- Standards Track
A YANG Data Model for MPLS Traffic Engineering Tunnels
This document defines a YANG data model for the configuration and management of Multiprotocol Label Switching (MPLS) Traffic Engineering (TE) tunnels, Label Switched Paths (LSPs) and interfaces. The model augments the TE generic YANG model for MPLS packet dataplane technology.¶
This model covers data for configuration, operational state, remote procedural calls, and event notifications.¶
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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/.¶
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This Internet-Draft will expire on 27 November 2023.¶
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.¶
YANG [RFC6020] and [RFC7950] is a data modeling language used to define the contents of a conceptual data store that allows networked devices to be managed using NETCONF [RFC6241]. YANG has proved relevant beyond its initial confines, as bindings to other interfaces (e.g. RESTCONF [RFC8040]) and encoding other than XML (e.g. JSON) are being defined. Furthermore, YANG data models can be used as the basis of implementation for other interfaces, such as CLI and programmatic APIs.¶
This document describes the YANG data model for configuration and management of MPLS TE tunnels, LSPs, and interfaces. Other YANG module(s) that model the establishment of MPLS LSP(s) via signaling protocols such as RSVP-TE ([RFC3209], [RFC3473]) are described in separate document(s).¶
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.¶
In this document, names of data nodes and other data model objects are prefixed using the standard prefix associated with the corresponding YANG imported modules, as shown in Table 1.¶
The MPLS TE YANG model covers the configuration, state, RPC and notifications data pertaining to MPLS TE interfaces, tunnels and LSPs parameters. The data specific to the signaling protocol used to establish MPLS LSP(s) is outside the scope of this document and is covered in other documents.¶
The MPLS TE YANG module "ietf-te-mpls" imports the following modules:¶
- ietf-te defined in [I-D.ietf-teas-yang-te]¶
- ietf-te-types and ietf-te-packet-types defined in [RFC8776]¶
- ietf-routing-types defined in [RFC8294]¶
- ietf-mpls-static defined in [I-D.ietf-mpls-static-yang]¶
URI: urn:ietf:params:xml:ns:yang:ietf-te-mpls XML: N/A, the requested URI is an XML namespace.¶
name: ietf-te-mpls namespace: urn:ietf:params:xml:ns:yang:ietf-te-mpls prefix: ietf-te-mpls reference: RFC3209¶
The YANG module defined in this memo is designed to be accessed via the NETCONF protocol [RFC6241]. The lowest NETCONF layer is the secure transport layer and the mandatory-to-implement secure transport is SSH [RFC6242]. The NETCONF access control model [RFC8341] provides means to restrict access for particular NETCONF users to a pre-configured subset of all available NETCONF protocol operations and content.¶
A number of data nodes defined in this YANG module 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>) to these data nodes without proper protection can have a negative effect on MPLS network operations. Following are the subtrees and data nodes and their sensitivity/vulnerability:¶
"/te/tunnels": The augmentation to this list specifies configuration to TE tunnels on a device. Unauthorized access to this list could cause the device to ignore packets it should receive and process.¶
"/te/globals": The augmentation to this target specifies configuration applicable to the to all or one TE device. Unauthorized access to this list could cause the device to ignore packets it should receive and process.¶
- Saad, T., Gandhi, R., Liu, X., Beeram, V. P., and I. Bryskin, "A YANG Data Model for MPLS Static LSPs", Work in Progress, Internet-Draft, draft-ietf-mpls-static-yang-13, , <https://datatracker.ietf.org/doc/html/draft-ietf-mpls-static-yang-13>.
- Saad, T., Gandhi, R., Liu, X., Beeram, V. P., Bryskin, I., and O. G. de Dios, "A YANG Data Model for Traffic Engineering Tunnels, Label Switched Paths and Interfaces", Work in Progress, Internet-Draft, draft-ietf-teas-yang-te-32, , <https://datatracker.ietf.org/doc/html/draft-ietf-teas-yang-te-32>.
- 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/info/rfc2119>.
- Awduche, D., Berger, L., Gan, D., Li, T., Srinivasan, V., and G. Swallow, "RSVP-TE: Extensions to RSVP for LSP Tunnels", RFC 3209, DOI 10.17487/RFC3209, , <https://www.rfc-editor.org/info/rfc3209>.
- Berger, L., Ed., "Generalized Multi-Protocol Label Switching (GMPLS) Signaling Resource ReserVation Protocol-Traffic Engineering (RSVP-TE) Extensions", RFC 3473, DOI 10.17487/RFC3473, , <https://www.rfc-editor.org/info/rfc3473>.
- Mealling, M., "The IETF XML Registry", BCP 81, RFC 3688, DOI 10.17487/RFC3688, , <https://www.rfc-editor.org/info/rfc3688>.
- Le Faucheur, F., Ed., "Protocol Extensions for Support of Diffserv-aware MPLS Traffic Engineering", RFC 4124, DOI 10.17487/RFC4124, , <https://www.rfc-editor.org/info/rfc4124>.
- Siddiqui, A., Romascanu, D., and E. Golovinsky, "Real-time Application Quality-of-Service Monitoring (RAQMON) Framework", RFC 4710, DOI 10.17487/RFC4710, , <https://www.rfc-editor.org/info/rfc4710>.
- 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/info/rfc6020>.
- 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/info/rfc6241>.
- Wasserman, M., "Using the NETCONF Protocol over Secure Shell (SSH)", RFC 6242, DOI 10.17487/RFC6242, , <https://www.rfc-editor.org/info/rfc6242>.
- Schoenwaelder, J., Ed., "Common YANG Data Types", RFC 6991, DOI 10.17487/RFC6991, , <https://www.rfc-editor.org/info/rfc6991>.
- Bjorklund, M., Ed., "The YANG 1.1 Data Modeling Language", RFC 7950, DOI 10.17487/RFC7950, , <https://www.rfc-editor.org/info/rfc7950>.
- Bierman, A., Bjorklund, M., and K. Watsen, "RESTCONF Protocol", RFC 8040, DOI 10.17487/RFC8040, , <https://www.rfc-editor.org/info/rfc8040>.
- 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/info/rfc8174>.
- Dhody, D., Wu, Q., Manral, V., Ali, Z., and K. Kumaki, "Extensions to the Path Computation Element Communication Protocol (PCEP) to Compute Service-Aware Label Switched Paths (LSPs)", RFC 8233, DOI 10.17487/RFC8233, , <https://www.rfc-editor.org/info/rfc8233>.
- Liu, X., Qu, Y., Lindem, A., Hopps, C., and L. Berger, "Common YANG Data Types for the Routing Area", RFC 8294, DOI 10.17487/RFC8294, , <https://www.rfc-editor.org/info/rfc8294>.
- Bierman, A. and M. Bjorklund, "Network Configuration Access Control Model", STD 91, RFC 8341, DOI 10.17487/RFC8341, , <https://www.rfc-editor.org/info/rfc8341>.
- Ginsberg, L., Ed., Previdi, S., Ed., Giacalone, S., Ward, D., Drake, J., and Q. Wu, "IS-IS Traffic Engineering (TE) Metric Extensions", RFC 8570, DOI 10.17487/RFC8570, , <https://www.rfc-editor.org/info/rfc8570>.
- Saad, T., Gandhi, R., Liu, X., Beeram, V., and I. Bryskin, "Common YANG Data Types for Traffic Engineering", RFC 8776, DOI 10.17487/RFC8776, , <https://www.rfc-editor.org/info/rfc8776>.