U-turn Alternates for IP/LDP Fast-Reroute
draft-atlas-ip-local-protect-uturn-03
| Document | Type |
Expired Internet-Draft
(individual)
Expired & archived
|
|
|---|---|---|---|
| Author | Alia Atlas | ||
| Last updated | 2006-03-07 (Latest revision 2005-02-22) | ||
| RFC stream | (None) | ||
| Formats | |||
| Stream | Stream state | (No stream defined) | |
| Consensus boilerplate | Unknown | ||
| RFC Editor Note | (None) | ||
| IESG | IESG state | Expired | |
| Telechat date | (None) | ||
| Responsible AD | (None) | ||
| Send notices to | (None) |
This Internet-Draft is no longer active. A copy of the expired Internet-Draft is available in these formats:
Abstract
This document defines and describes the use of U-turn alternates to provide local protection for IP unicast and/or LDP traffic in the event of a single failure, whether link, node or shared risk link group (SRLG). When a topology change occurs, a router S pre-computes for each prefix an alternate next-hop that can be used if the primary next-hop fails. An acceptable alternate can be either a loop-free alternate or a U-turn alternate. A U-turn alternate uses a neighbor, whose primary next-hop to the prefix is router S itself and which has itself a loop-free node-protecting alternate, which thus does not go through router S to reach the destination prefix.
Authors
(Note: The e-mail addresses provided for the authors of this Internet-Draft may no longer be valid.)