Extended Encoding Scheme for Shared List Link Group (SRLG)
draft-ali-ccamp-extended-srlg-00

Document Type Expired Internet-Draft (individual)
Last updated 2013-08-22 (latest revision 2013-02-18)
Stream (None)
Intended RFC status (None)
Formats
Expired & archived
plain text pdf html bibtex
Stream Stream state (No stream defined)
Consensus Boilerplate Unknown
RFC Editor Note (None)
IESG IESG state Expired
Telechat date
Responsible AD (None)
Send notices to (None)

This Internet-Draft is no longer active. A copy of the expired Internet-Draft can be found at
https://www.ietf.org/archive/id/draft-ali-ccamp-extended-srlg-00.txt

Abstract

SRLGs play a key role in routing resiliency and capacity planning of multi-domain and multi-layer networks. Notion of SRLG are used to select a backup path that is disjoint from the primary path, to ensure disjointness of circuits and to avoid catastrophic partitioning outages. In the current specifications, SRLG is identified as a 32 bit number that is unique within an IGP domain [RFC4202]. There are many limitations to this approach of encoding SRLGs, especially in a multi-layer network. This draft outlines these limitations and suggests components of extended SRLG encoding scheme to address them.

Authors

Zafar Ali (zali@cisco.com)
George Swallow (swallow@cisco.com)
Clarence Filsfils (cfilsfil@cisco.com)
Ori Gerstel (ogerstel@cisco.com)
Stewart Bryant (stbryant@cisco.com)
Matt Hartley (mhartley@cisco.com)

(Note: The e-mail addresses provided for the authors of this Internet-Draft may no longer be valid.)