LDP Extensions for Multi-Topology
RFC 7307
Document | Type | RFC - Proposed Standard (July 2014; Errata) | |
---|---|---|---|
Authors | Quintin Zhao , Kamran Raza , Chao Zhou , Luyuan Fang , Lianyuan Li , Daniel King | ||
Last updated | 2018-12-20 | ||
Replaces | draft-zhao-mpls-ldp-multi-topology | ||
Stream | Internent Engineering Task Force (IETF) | ||
Formats | plain text html pdf htmlized (tools) htmlized bibtex | ||
Reviews | |||
Stream | WG state | Submitted to IESG for Publication | |
Document shepherd | Loa Andersson | ||
Shepherd write-up | Show (last changed 2014-03-18) | ||
IESG | IESG state | RFC 7307 (Proposed Standard) | |
Action Holders |
(None)
|
||
Consensus Boilerplate | Yes | ||
Telechat date | |||
Responsible AD | Adrian Farrel | ||
IESG note | Loa Andersson <loa@pi.nu> is the document shepherd | ||
Send notices to | (None) | ||
IANA | IANA review state | Version Changed - Review Needed | |
IANA action state | RFC-Ed-Ack |
Internet Engineering Task Force (IETF) Q. Zhao Request for Comments: 7307 Huawei Technology Category: Standards Track K. Raza ISSN: 2070-1721 C. Zhou Cisco Systems L. Fang Microsoft L. Li China Mobile D. King Old Dog Consulting July 2014 LDP Extensions for Multi-Topology Abstract Multi-Topology (MT) routing is supported in IP networks with the use of MT-aware IGPs. In order to provide MT routing within Multiprotocol Label Switching (MPLS) Label Distribution Protocol (LDP) networks, new extensions are required. This document describes the LDP protocol extensions required to support MT routing in an MPLS environment. Status of This Memo This is an Internet Standards Track document. This document is a product of the Internet Engineering Task Force (IETF). It represents the consensus of the IETF community. It has received public review and has been approved for publication by the Internet Engineering Steering Group (IESG). Further information on Internet Standards is available in Section 2 of RFC 5741. Information about the current status of this document, any errata, and how to provide feedback on it may be obtained at http://www.rfc-editor.org/info/rfc7307. Zhao, et al. Standards Track [Page 1] RFC 7307 LDP Multi-Topology Extensions July 2014 Copyright Notice Copyright (c) 2014 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 (http://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 Simplified BSD License text as described in Section 4.e of the Trust Legal Provisions and are provided without warranty as described in the Simplified BSD License. Zhao, et al. Standards Track [Page 2] RFC 7307 LDP Multi-Topology Extensions July 2014 Table of Contents 1. Introduction ....................................................4 2. Terminology .....................................................4 3. Signaling Extensions ............................................5 3.1. Topology-Scoped Forwarding Equivalence Class (FEC) .........5 3.2. New Address Families: MT IP ................................5 3.3. LDP FEC Elements with MT IP AF .............................6 3.4. IGP MT-ID Mapping and Translation ..........................7 3.5. LDP MT Capability Advertisement ............................7 3.5.1. Protocol Extension ..................................7 3.5.2. Procedures ..........................................9 3.6. Label Spaces ..............................................10 3.7. Reserved MT-ID Values .....................................10 4. MT Applicability on FEC-Based Features .........................10 4.1. Typed Wildcard FEC Element ................................10 4.2. Signaling LDP Label Advertisement Completion ..............11 4.3. LSP Ping ..................................................11 4.3.1. New FEC Sub-Types ..................................11 4.3.2. MT LDP IPv4 FEC Sub-TLV ............................12 4.3.3. MT LDP IPv6 FEC Sub-TLV ............................13 4.3.4. Operation Considerations ...........................13 5. Error Handling .................................................14 5.1. MT Error Notification for Invalid Topology ID .............14 6. Backwards Compatibility ........................................14 7. MPLS Forwarding in MT ..........................................14 8. Security Considerations ........................................14 9. IANA Considerations ............................................15 10. Manageability Considerations ..................................17 10.1. Control of Function and Policy ...........................17 10.2. Information and Data Models ..............................17Show full document text