This draft describes an extension to the basic IP fast re-route
mechanism described in RFC5286, that provides additional backup
connectivity for point to point link failures when none can be
provided by the basic mechanisms.
Working Group Summary
This draft has been thoroughly discussed in the WG. The mechanism
described protects against link failures. Significant discussion
took place related to the need to also protect against node failures.
The WG reached consensus by agreeing to address more complex topic
of node protection in a separate draft
There are existing implementations and multiple vendors have shown
significant interest in the topic. Note that there is no technical
requirement for the selection criteria to be consistent across all
routers, but such consistency may be desirable from an operational
point of view.
Besides the discussion about node protection (see above), the
acknowledged reviewers deserve a special mention because they went
deep into the text/algorithms and contributed the cost-based algorithm
text (which is one potential implementation option).
Document Shepherd = Alvaro Retana
Responsible Area Director = Alia Atlas