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Abstract:
This document describes the use of loop-free alternates to provide local
protection for unicast traffic in pure IP and MPLS/LDP networks in the event of a single
failure, whether link, node, or shared risk link group (SRLG). The goal of this technology is
to reduce the packet loss that happens while routers converge after a topology change due to
a failure. Rapid failure repair is achieved through use of precalculated backup next-hops that are loop-free
and safe to use until the distributed network convergence process completes. This simple approach does not
require any support from other routers. The extent to which this goal can be met by
this specification is dependent on the topology of the network. [STANDARDS-TRACK]
Authors:
Alex Zinin <alex.zinin@alcatel.com>
(Note: The e-mail addresses provided for the authors of this Internet-Draft may no longer be valid)
datatracker.ietf.org