Re: Last Call on RSVP Label Allocation for Backup Tunnels

[Robert Raszuk <raszuk@cisco.com>]

Giles,

> > For the user-plane, the failure modes which must be considered/defined are:
> > -       simple below MPLS fabric server layer connectivity breaks;
> > -       simple within MPLS fabric connectivity breaks (at or below the LSP
> > level considered);
> 
> Both of these will be detected by the RSVP signalling, won't they?

Sure but the question is when ? 

Do you think that RSVP Error/Tear msgs will travel immediately - case of
link failure or are you proposing to run RSVP refresh in the interval
less then 1 sec - to detect the case of node failure ? The point is that
this draft is not about detection, but about backup LSP setup and label
allocation under the __local__ protection scheme. So let's talk on the
subject here. 

If one questions the use of local protection all together please specify
how else you will achive the same results of even less then 1 sec end to
end traffic disruption with end to end protection under both link & node
failures for the TE- LSP ? 

Bora,

Which CCAMP IDs address the setup & label allocation of backup tunnels
for local protection ?

R.