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Cell Relay Retreat>MPLS WG Archive>month:2002-Jan> msg00004



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RSVP

  • From: David Charlap <David.Charlap@marconi.com>
  • Date: Wed, 02 Jan 2002 11:50:20 -0500

"Gopinath G - CTD, Chennai." wrote:
> 
> How  RSVP/RSVP-TE  recognises its peers  ?  Is there any discovery
> mechanism like in LDP
> or do we need to configure the peers ?

There is no discovery mechanism.  And there is no need for one.

When a Path message is received, the next-hop router is determined using
the routing table and the content of the SESSION (or EXPLICIT_ROUTE)
object.

Other messages that flow downstream use the same next-hop that the most
recent Path message for that flow used.  Messages that flow upstream are
sent to the previous-hop router, based on the PHOP object of the
most-reently received Path message for that flow.

-- David