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Cell Relay Retreat>MPLS WG Archive>month:2002-Jul> msg00304



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initiating a discussion on mpls singaling protocols

  • From: David Charlap <david.charlap@marconi.com>
  • Date: Tue, 23 Jul 2002 11:44:42 -0400
  • User-Agent: Mozilla/5.0 (Windows; U; WinNT4.0; en-US; rv:1.1b) Gecko/20020719

Vijayanand C - CTD, Chennai. wrote:
> Apply the refresh reduction procedures to the scenario taking into account
> the amount of state you need to store for summary refresh, triggers, refresh
> msgs , ACKs/NACKs and associated back off mechanisms in RSVP-TE. Sure, you
> might be able to manage but are you efficient considering that you could do
> the same thing easily with CR LDP.

You are forgetting about the overhead of the TCP protocol, which has to 
do all the same things to ensure reliable message delivery.  This 
overhead must be added to CR-LDP, since it uses TCP.  It is not added to 
RSVP-TE, which works over raw sockets.

The fact that overhead is hidden in a different protocol layer doesn't 
mean it doesn't exist.

-- David