Name: draft-venkata-ipfrr-mpa-00
Title: IP Fast Reroute using Multiple Path Algorithm (MPA)
State: Active
Authors: Venkata Naidu
Group: Individual Submissions (none)
Date: 2004-07-06
This document describes a practical mechanism to implement IP fast reroute
using multiple viable loop-free next hops, which are not necessarily
shortest path to a destination. Upon a link failure, all the destinations
reachable via the primary nexthop will be forwarded to pre-computed
alternative loop free nexthops, if any, without much delay. The mechanism
does not impose any new protocol message/capability exchange. The mechanism
does not use any tunneling techniques. It is shown that simple changes to
existing IGP shortest path computation and routing table structures are
sufficient to achieve the desired functionality. More over, routers which
implement the proposed mechanism can co-exist and can be fully backward
compatible with existing unmodified routers.
[sh-index] Back to list of manuals
|
| |
