Technical Summary
In some networks where precise explicit paths are not computed at the
head end it may be useful to specify and signal abstract nodes and
resources that are to be explicitly excluded from routes. These
exclusions may apply to the whole path, or to parts of a path between
two abstract nodes specified in an explicit path. How Shared Risk
Link Groups (SLRGs) can be excluded is also specified in this
document.
This document specifies ways to communicate route exclusions during
path setup using RSVP-TE.
Working Group Summary
no reports of any dissent
Protocol Quality
Ross Callon has reviewed this for the IESG, and Eric Gray has
provided Gen-ART review comments. The document has been updated
in response to Eric's and Ross' comments. I know of at least one
implementation with some deployment, and I suspect that there is
more than one implementation.