nanog mailing list archives
Re: Open letter to Level3 concerning the global routing issues on June 12th
From: "Justin M. Streiner" <streiner () cluebyfour org>
Date: Sat, 13 Jun 2015 10:16:18 -0400 (EDT)
On Sat, 13 Jun 2015, Mark Tinka wrote:
For peering and customers, we set a default prefix limit value for IPv4 and IPv6. We only change this if the peer/customer informs us that they will announce a lot more than what we've configured. We add some % to cover for "sudden" growth, but not too much to impact the network. For customers, we add prefix lists and AS_PATH filters as mandatory. I'm sure others do the same. It would be good if we all did. I know the largest transit providers tend to be more relaxed for various reasons. Some rely on filters generated by IRR entries, others don't. A lot more work is needed, indeed. It's not 2008 anymore...
At my previous job (regional ISP with a decent amount of BGP-speaking downstream customers), we did prefix and AS-PATH filtering on all customer sessions. The only thing lacking at that time (1997-2004) was a decent way to automate changes - everything was pretty manual. That said, it kept issues caused by customers leaking routes back to us down to pretty much nil.
jms
Current thread:
- Open letter to Level3 concerning the global routing issues on June 12th Martin Millnert (Jun 12)
- RE: Open letter to Level3 concerning the global routing issues on June 12th Utkarsh Gosain (Jun 12)
- Re: Open letter to Level3 concerning the global routing issues on June 12th jim deleskie (Jun 12)
- Re: Open letter to Level3 concerning the global routing issues on June 12th Job Snijders (Jun 12)
- Re: Open letter to Level3 concerning the global routing issues on June 12th Mark Tinka (Jun 13)
- Re: Open letter to Level3 concerning the global routing issues on June 12th Roland Dobbins (Jun 13)
- Re: Open letter to Level3 concerning the global routing issues on June 12th Grzegorz Janoszka (Jun 13)
- RE: Open letter to Level3 concerning the global routing issues on June 12th Jürgen Jaritsch (Jun 13)
- Re: Open letter to Level3 concerning the global routing issues on June 12th Gavin Henry (Jun 13)
- Re: Open letter to Level3 concerning the global routing issues on June 12th Justin M. Streiner (Jun 13)
- Re: Open letter to Level3 concerning the global routing issues on June 12th jim deleskie (Jun 12)
- RE: Open letter to Level3 concerning the global routing issues on June 12th Utkarsh Gosain (Jun 12)
- Re: Open letter to Level3 concerning the global routing issues on June 12th Todd Underwood (Jun 12)
- Re: Open letter to Level3 concerning the global routing issues on June 12th jim deleskie (Jun 12)
- Re: Open letter to Level3 concerning the global routing issues on June 12th Jared Mauch (Jun 12)
- Re: Open letter to Level3 concerning the global routing issues on June 12th Jared Mauch (Jun 12)
- Re: Open letter to Level3 concerning the global routing issues on June 12th Rafael Possamai (Jun 13)
- Re: Open letter to Level3 concerning the global routing issues on June 12th Niels Bakker (Jun 14)
- Re: Open letter to Level3 concerning the global routing issues on June 12th Stephen Satchell (Jun 14)