nanog mailing list archives
Re: Networks ignoring prepends?
From: Andrew Hoyos <hoyosa () gmail com>
Date: Mon, 22 Jan 2024 15:11:25 -0600
On Jan 22, 2024, at 14:35, William Herrin <bill () herrin us> wrote:
The best path to me from Centurylink is: 3356 1299 20473 11875 The path Centurylink chose is: 3356 47787 47787 47787 47787 53356 11875 11875 11875 Do you want to tell me again how that's a reasonable path selection, or how I'm supposed to pass communities to either 20473 or 53356 which tell 3356 to behave itself?
This certainly seems like a reasonable path selection, in the context that 47787 is likely a 3356 customer. AS53356 (Free Range Cloud Hosting) appears to have some limited BGP communities that may help. https://docs.freerangecloud.com/en/bgp/communities implies that you sending 53356:19014 would block announcements to 47787. That may turn into a game of whack a mole, but the knobs appear to be there to try something other than prepending to influence 3356’s selection. — Andrew Hoyos hoyosa () gmail com <mailto:hoyosa () gmail com>
Current thread:
- Re: Networks ignoring prepends?, (continued)
- Re: Networks ignoring prepends? William Herrin (Jan 24)
- Re: Networks ignoring prepends? James Jun (Jan 24)
- Re: Networks ignoring prepends? William Herrin (Jan 24)
- Re: Networks ignoring prepends? James Jun (Jan 24)
- Re: Networks ignoring prepends? William Herrin (Jan 24)
- Re: Networks ignoring prepends? James Jun (Jan 24)
- Re: Networks ignoring prepends? James Jun (Jan 22)
- Re: Networks ignoring prepends? William Herrin (Jan 22)
- Re: Networks ignoring prepends? Owen DeLong via NANOG (Jan 22)
- Re: Networks ignoring prepends? Tom Beecher (Jan 22)
- Re: Networks ignoring prepends? Andrew Hoyos (Jan 23)
- Re: Networks ignoring prepends? William Herrin (Jan 22)
- Re: Networks ignoring prepends? Nick Hilliard (Jan 22)
- Re: Networks ignoring prepends? William Herrin (Jan 22)
- Re: Networks ignoring prepends? James Jun (Jan 22)
- Re: Networks ignoring prepends? William Herrin (Jan 22)
- Re: Networks ignoring prepends? William Herrin (Jan 22)
- Re: Networks ignoring prepends? Alex Le Heux (Jan 23)
- Re: Networks ignoring prepends? William Herrin (Jan 22)
- Re: Networks ignoring prepends? Alex Le Heux (Jan 23)
- Re: Networks ignoring prepends? William Herrin (Jan 22)