On Jan 22, 2024, at 14:35, William Herrin <b...@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 hoy...@gmail.com <mailto:hoy...@gmail.com>
