Re: shared mesh restoration - e2e recovery signaling draft

[Dimitri.Papadimitriou@alcatel.be]

hi 

your question is in a shared mesh case, are the ingress nodes (N-1) 
notified about the use of the recovery path by the remaining ingress node 
part of the same shared mesh group

answer is yes - you can notify the other ingresses by sending a PathErr of 
Notify msg - the error code defined for this case is "Notify Error/LSP 
Locally Failed" - 

much thanks,
- dimitri.





"Payam Torab" <ptorab@lopsys.com>
Sent by: owner-ccamp@ops.ietf.org
26/07/2006 00:11
 
        To:     <ccamp@ops.ietf.org>
        cc:     "'Dave Walters'" <dwalters@lopsys.com>
        Subject:        shared mesh restoration - e2e recovery signaling 
draft


In the e2e recovery signaling draft 
(draft-ietf-ccamp-gmpls-recovery-e2e-signaling-03.txt), there is a 
procedure defined for a node on the shared restoration path to notify 
other nodes regarding the working LSPs that become vulnerable as a result 
of switching to the shared restoration path.
 
It seems there is a similar need to notify these nodes once the shared 
restoration path becomes available again. Is this mechanism defined 
anywhere?
 
Thanks,
Payam