nanog mailing list archives
Re: Determine difference between 2 BGP feeds
From: Warren Kumari <warren () kumari net>
Date: Tue, 18 Apr 2006 13:31:51 -0700
On Apr 18, 2006, at 1:19 PM, Mike Walter wrote:
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?
Sounds to me like a: you are only looking at best routes or b: one of the providers is sending you more specific customer routes (that they summarize before sending to non-customers).
Personally I would just slurp one set of routes into an array in perl and then delete them if they appear in the other set. Any left over in either set are unique....
W
Mike Walter Systems Administrator -----Original Message-----From: owner-nanog () merit edu [mailto:owner-nanog () merit edu] On Behalf OfScott "Tuc" Ellentuch at T-B-O-H Sent: Tuesday, April 18, 2006 4:13 PM To: nanog () merit edu Subject: Determine difference between 2 BGP feeds Hi, 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
--Some people are like Slinkies......Not really good for anything but they still bring a smile to your face when you push them down the stairs.
Current thread:
- Re: Determine difference between 2 BGP feeds, (continued)
- Re: Determine difference between 2 BGP feeds Jon Lewis (Apr 18)
- Re: Determine difference between 2 BGP feeds Tuc (Apr 18)
- Re: Determine difference between 2 BGP feeds Richard A Steenbergen (Apr 18)
- Re: Determine difference between 2 BGP feeds Tuc (Apr 18)
- Re: Determine difference between 2 BGP feeds Tuc (Apr 18)
- Re: Determine difference between 2 BGP feeds Jon Lewis (Apr 18)
- Re: Determine difference between 2 BGP feeds John Kristoff (Apr 18)
- Re: Determine difference between 2 BGP feeds Marco d'Itri (Apr 18)
- Re: Determine difference between 2 BGP feeds Bill Nash (Apr 18)
- Re: Determine difference between 2 BGP feeds David Andersen (Apr 18)
- Re: Determine difference between 2 BGP feeds Bill Nash (Apr 18)
- Re: Determine difference between 2 BGP feeds Bill Nash (Apr 18)
- Re: Determine difference between 2 BGP feeds Warren Kumari (Apr 18)
- RE: Determine difference between 2 BGP feeds Alex Rubenstein (Apr 18)
- Re: Determine difference between 2 BGP feeds Tuc (Apr 18)