nanog mailing list archives
Re: Communities BCP [was: RE: BGP Path Filtering]
From: Jay Ford <jay-ford () uiowa edu>
Date: Fri, 16 May 2003 14:26:38 -0500 (CDT)
On Fri, 16 May 2003, Joe Abley wrote:
Examples of characteristics I have seen in the wild are: + I was learnt from a peer + I was learnt from a transit provider + I was learnt from a customer + I was learnt over an exchange point + I was learnt over a private peering connection These are all markers to be used in setting internal policy, so the choice of numbers really doesn't matter. You can add or remove characteristics from your list when necessary without having to renumber anything. You can (and probably should) strip all these attributes before sending routes to EBGP peers, so nobody else has to see them.
You can & definitely should strip those community values on announcements you receive from EBGP peers. Interesting things happen if you let others turn your routing policy knobs when you think they can't reach them. ________________________________________________________________________ Jay Ford, Network Engineering Group, Information Technology Services University of Iowa, Iowa City, IA 52242 email: jay-ford () uiowa edu, phone: 319-335-5555, fax: 319-335-2951
Current thread:
- BGP Path Filtering Mark Radabaugh (May 15)
- Re: BGP Path Filtering Brian Wallingford (May 15)
- Re: BGP Path Filtering Jay Ford (May 15)
- Communities BCP [was: RE: BGP Path Filtering] Deepak Jain (May 16)
- Re: Communities BCP [was: RE: BGP Path Filtering] Daniel Golding (May 16)
- Re: Communities BCP [was: RE: BGP Path Filtering] Joe Abley (May 16)
- Re: Communities BCP [was: RE: BGP Path Filtering] Jay Ford (May 16)
- Re: Communities BCP [was: RE: BGP Path Filtering] Danny McPherson (May 16)
- Re: Communities BCP [was: RE: BGP Path Filtering] Stephen J. Wilcox (May 16)
- Re: Communities BCP [was: RE: BGP Path Filtering] Danny McPherson (May 16)
- Re: Communities BCP [was: RE: BGP Path Filtering] Richard A Steenbergen (May 16)
- Re: Communities BCP [was: RE: BGP Path Filtering] Guy Tal (May 16)
- Re: Communities BCP [was: RE: BGP Path Filtering] Leo Bicknell (May 16)
- Re: Communities BCP [was: RE: BGP Path Filtering] Danny McPherson (May 16)
- Re: Communities BCP [was: RE: BGP Path Filtering] Danny McPherson (May 16)
- Re: Communities BCP [was: RE: BGP Path Filtering] Stephen J. Wilcox (May 16)
- Re: Communities BCP [was: RE: BGP Path Filtering] Guy Tal (May 16)
- Communities BCP [was: RE: BGP Path Filtering] Deepak Jain (May 16)