nanog mailing list archives

Re: useful bgp example


From: Jared Mauch <jared () puck nether net>
Date: Wed, 19 May 2010 14:29:21 -0400


On May 19, 2010, at 2:26 PM, Jeff Harper wrote:

-----Original Message-----
From: Deric Kwok [mailto:deric.kwok2000 () gmail com]
Sent: Monday, May 17, 2010 6:15 PM
To: nanog () nanog org
Subject: useful bgp example

Hi

My company will get 2 upstream provider. We will plan 2 routers and
each router to connect one provider to use bgp for redundant.
Do you have any useful bgp example and website to set it up?

Thank you for your help

This jpg should help, has config on it as well.

Jeff
<bgp1.jpg>

Nice, but you don't show it as-path filtering your transits out.  I frequently see people take something learned from 
transit A and sending it to transit B, and if it happens to be the backup path in-use for your customer, your transits 
will accept it and likely pick you as best-path and hairpin through your network.

- Jared



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