I’d bet that 47787 is a paying century link customer. As such, despite the ugliness of the path, CL probably local prefs everything advertised by them higher than any non-paying link. I’m willing to bet 1299 is peered and not paying CL.
Sending bits for revenue is almost always preferable to sending bits for free, so… Owen > On Jan 22, 2024, at 12:37, William Herrin <b...@herrin.us> wrote: > > On Mon, Jan 22, 2024 at 10:19 AM James Jun <james....@towardex.com> wrote: >> So, as a customer, you actually SHOULD be demanding your ISPs >> to positively identify and categorize their routes using local-pref >> and communities. > > Hi James, > > 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? > > Regards, > Bill Herrin > > > -- > William Herrin > b...@herrin.us > https://bill.herrin.us/