A New Internet-Draft is available from the on-line Internet-Drafts directories.
This draft is a work item of the Source Packet Routing in Networking WG of the
IETF.
Title : SR-TE Path Midpoint Restoration
Authors : Zhibo Hu
Huaimo Chen
Junda Yao
Chris Bowers
Yongqing
Yisong
Filename : draft-hu-spring-segment-routing-proxy-forwarding-20.txt
Pages : 14
Date : 2022-08-18
Abstract:
Segment Routing Traffic Engineering (SR-TE) supports explicit paths
using segment lists containing adjacency-SIDs, node-SIDs and binding-
SIDs. The current SR FRR such as TI-LFA provides fast re-route
protection for the failure of a node along a SR-TE path by the direct
neighbor or say point of local repair (PLR) to the failure. However,
once the IGP converges, the SR FRR is no longer sufficient to forward
traffic of the path around the failure, since the non-neighbors of
the failure will no longer have a route to the failed node. This
document describes a mechanism for the restoration of the routes to
the failure of a SR-MPLS TE path after the IGP converges. It
provides the restoration of the routes to an adjacency segment, a
node segment and a binding segment of the path. With the restoration
of the routes to the failure, the traffic is continuously sent to the
neighbor of the failure after the IGP converges. The neighbor as a
PLR fast re-routes the traffic around the failure.
The IETF datatracker status page for this draft is:
https://datatracker.ietf.org/doc/draft-hu-spring-segment-routing-proxy-forwarding/
There is also an htmlized version available at:
https://datatracker.ietf.org/doc/html/draft-hu-spring-segment-routing-proxy-forwarding-20
A diff from the previous version is available at:
https://www.ietf.org/rfcdiff?url2=draft-hu-spring-segment-routing-proxy-forwarding-20
Internet-Drafts are also available by rsync at rsync.ietf.org::internet-drafts
_______________________________________________
spring mailing list
spring@ietf.org
https://www.ietf.org/mailman/listinfo/spring
