[c-nsp] RSVP MPLS Fast Reroute PLR Behavior

[sthaug at nethelp.no]

> While testing out Fast Reroute I notice that after a linkdown and successful
> FRR switch onto bypass, the SUT does not switch back to the primary path
> after link is restored and IGP reconverges.  Is this expected behavior or am
> I perhaps missing some important config statement?  I am testing on 7609s
> with version 12.2(33)SRD.

As far as I know this the expected behavior. MPLS explicit LSPs will
be reoptimized at intervals you specify, but it doesn't necessarily
happen right away. We have typically configured a reoptimization
interval of 1 hour.

Steinar Haug, Nethelp consulting, sthaug at nethelp.no