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Cell Relay Retreat>MPLS WG Archive>month:2003-Mar> msg00214



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Between OSPF RSVP...

  • From: Curtis Villamizar <curtis@fictitious.org>
  • Date: Wed, 12 Mar 2003 16:21:18 -0500
  • cc: "'john151@libero.it'" <john151@libero.it>, mpls <mpls@UU.NET>


In message <C77B73BC1A3ED4118C2000508BAD8A7C0651F476@ma8117exch001u.inse.lucent
.com>, "Nair, Girish (Girish)" writes:
> Giovanni,
> 
> I agree. Link down LSP rerouting can be done a little more efficiently
> using the IGP. This has been done in some proprietary signaling
> implementations
> and works well. It involves tighter coupling between the IGP and signaling
> though.
> 
> Girish


There is nothing proprietary about this.  ***All*** IP routers that
implement OSPF/TE and/or ISIS/TE do this AFAIK and probably all LSR
that implement OSPF/TE and/or ISIS/TE (the remaining subset is mostly
ATM switches).

I welcome corrections from anyone that knows of an LSR that implements
OSPF/TE or ISIS/TE that doesn't use the flooded information as a hint
that some of the LSPs are down.

Curtis