I-D ACTION:draft-atlas-ip-local-protect-00.txt

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	Title		: IP/LDP Local Protection
	Author(s)	: A. Atlas
	Filename	: draft-atlas-ip-local-protect-00.txt
	Pages		: 30
	Date		: 2004-2-9
	
This document defines an architecture and selection process for
providing local protection for IP unicast and/or LDP traffic in the
event of a single link or node failure until the router has
converged.  When computing the primary next-hop for a prefix, a
router S also determines an alternate next-hop which can be used if
the primary next-hop fails.  The alternate can be either a loop-free
alternate, which goes to a neighbor whose shortest path to the prefix
does not go back through the router S, or a U-turn alternate, which
goes to a neighbor whose primary next-hop to the prefix is the router
S, and which has itself a loop-free node-protecting alternate, which
thus does not go through router S to reach the destination prefix.

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