North American Network Operators Group

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RE: Determine difference between 2 BGP feeds

  • From: Mike Walter
  • Date: Tue Apr 18 16:24:01 2006

Sounds to me like one of your providers is not feeding you the full
internet routing table.  Have you checked with them to see if they are
providing you that?

Mike Walter
Systems Administrator

-----Original Message-----
From: [email protected] [mailto:[email protected]] On Behalf Of
Scott "Tuc" Ellentuch at T-B-O-H
Sent: Tuesday, April 18, 2006 4:13 PM
To: [email protected]
Subject: Determine difference between 2 BGP feeds


	We receive a BGP feed from different providers on two 
different routers. While one seems to be a reasonable amount
of feeds after reviewing the CIDR report, the other is anywhere
from 3K to 10K more routes. 

	Is there a utility that I can use that will pull the
routes off each router (Foundry preferred), and then compare 
them as best it can to see why there is such a difference? 
I can understand a handful of routes over what CIDR says, 
but a minimum of 3K more?

		Thanks, Tuc/TBOH