North American Network Operators Group

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RE: redistribute IGP routes to BGP

  • From: Patrick W. Gilmore
  • Date: Fri Nov 02 18:52:01 2001

At 11:54 AM 11/1/2001 -0600, Zhao, Xingguo wrote:
>I didn't get how this helps to make this redistribution useful.
>Could you give me more hints?

FWIW: I do not use it, and neither do most of the people I know - on ciscos. On Junipers, apparently they like you to do this, not sure why.

On a cisco, many people say the route is already in the IGP (has to be to be advertised by BGP), so why not just redistribute with filters. I prefer to put the prefixes into BGP manually, and nail something to the loopback for the IGP. If you make a mistake in typing the prefixes in, you get a single route wrong. If you make a mistake in your filter during redistribution, all kinds of bad things can happen.

My $0.00000000002.