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Cell Relay Retreat>MPLS WG Archive>month:2002-Apr> msg00198



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Memory at PE

  • From: Sachin Kalra <skalra@opnet.com>
  • Date: Tue, 23 Apr 2002 11:51:11 -0400

Dear Group:

I would appreciate if I can get answer to the following question regarding 
BGP/MPLS VPNs (RFC2547bis)

I understand that PE router maintains a separate VRF table for each VPN 
site connected to it. I wanted to know if a PE also maintain separate RIBs 
for each VPN site, apart from its main Local RIB? Or, does it maintain only 
one single RIB?

Actually, I was looking from the perspective of amount of memory required 
at PE, if it has to maintain many VRFs and many RIBs.

Thanks for your response.
Sachin Kalra