nanog mailing list archives
Re: Level3 (3356/3549) changes routing policy
From: David Reader <david.reader () zeninternet co uk>
Date: Thu, 2 Aug 2012 13:41:29 +0100
On Thu, 2 Aug 2012 10:33:38 +0200 Fredy Kuenzler <kuenzler () init7 net> wrote:
From my observation Level3 has recently changed their routing policy. It seems that 3356 always prefers customer prefixes of 3549, regardless of the AS path length. Example (seen from 3356): 3549_13030_[Customer1]_[Customer2] is preferred over 2914_[Customer1]_[Customer2] Considering that both 2914 and 3549 are peers of 3356, and 13030 is a customer of 3549, 3356 seems to give higher local-pref on the longer AS-path, likely to increase traffic and revenue of their sister network 3549.
Hi Fredy, Level 3 owns both 3356 and 3549. They're simply preferring to have their customers pay them, rather than a 3rd party. I don't think it's suprising at all that they're doing it. If, as you think, it's only happened recently then what is suprising is that it didn't happen sooner IMO. d.
Current thread:
- Level3 (3356/3549) changes routing policy Fredy Kuenzler (Aug 02)
- Re: Level3 (3356/3549) changes routing policy David Reader (Aug 02)
- Re: Level3 (3356/3549) changes routing policy Justin M. Streiner (Aug 02)
- RE: Level3 (3356/3549) changes routing policy John van Oppen (Aug 02)
- RE: Level3 (3356/3549) changes routing policy Siegel, David (Aug 02)
- Re: Level3 (3356/3549) changes routing policy Justin M. Streiner (Aug 02)
- Re: Level3 (3356/3549) changes routing policy Adrian M (Aug 02)
- Re: Level3 (3356/3549) changes routing policy David Reader (Aug 02)