Networks ignoring prepends?

Mon Jan 22 21:54:50 UTC 2024

William Herrin wrote on 22/01/2024 21:26:
> At which point Centurylink chooses 40676 7489 11875 11875 11875
> 11875 11875 11875 11875.
[...]
> You're telling me with a straight face that you think 
> that's*reasonable*  routing?

yep, looks pretty reasonable, if you're Centurylink and 40676 is a 
Centurylink customer.

> Besides, I don't want to drop the path to53356 via 47787. If the path
> through 20473  fails, the path through 53356 is the next best and I 
> want Centurylink to use it.
You have your own ASN, you have control over your own routing policy. 
Centurylink probably aren't going to be interested in engaging with you 
if you're not a customer. It's a pickle.

Nick