Hi Eric,
Thanks for your reply.
If i configure path protection the way suggested by you.How would the
ingress router or the head node be notified when a failure occurs in the
path? Does it use PathERR message or uses special notifiaction message
as specified by draft-chang-mpls-path-protection(A path/Restoration
Mechanism for MPLS Networks)?
Thanks a lot,
Krishna
Eric Osborne wrote:
>
> On Tue, Jun 19, 2001 at 03:43:36PM -0400, Krishna Doddapaneni wrote:
> > Hi Guys,
> > Does cisco supports path protection in MPLS ?In the cisco website i saw
> > the support for only link protection.Is Cisco thinking of supporting
> > node protection in the near future?
>
> Are you asking about node protection, or path protection?
>
> Both are at varying stages of work - have your favorite cisco sales
> folks get in touch with me if you want more info.
>
> You can do a limited path-protection-like thing now by
>
> - configuring 2 tunnels to the same destination
> - making sure they don't take the same physical path (this can be
> tricky to do large-scale or with any dynamicity (is that a word?))
> - configure the "primary path" with
> tunnel mpls traffic-eng autoroute metric relative -2
> - and the backup path with
> tunnel mpls traffic-eng autoroute metric relative -1
>
> <obCisco>
> path protection is nifty, but IMHO doesn't scale that well. Link and
> node protection are far more scalable. There are a few cases where
> path protection is useful, but not as many as people seem to think...:)
> </obCisco>
>
> eric
>
> > Thanks in advance,
> > Krishna
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