Re: Networks ignoring prepends?

[Owen DeLong via NANOG <nanog () nanog org>]

And now you are faced with an object lesson as to why TE routes are so prevalent. 

Less specifics are your only functional alternative here. In most cases, you shouldn’t need more than 2 per prefix. 

Owen


> On Jan 22, 2024, at 12:16, William Herrin <bill () herrin us> wrote:
>
> On Mon, Jan 22, 2024 at 5:23 AM Jon Lewis <jlewis () lewis org> wrote:
> > You may be limited to seeing if your backup providers have community
> > controls that would let you tell them "don't share with Centurylink"
>
> As I already explained, neither the primary nor any of the backup
> providers directly peer with Centurylink, thus have no communities for
> controlling announcements to Centurylink.
>
> I hate to litter the table with a batch of more-specifics that only
> originate from the short, preferred link but I'm not hearing any
> practical alternatives. Treating my distant links as equivalent even
> though I told you with prepends that they are not leaves me with few
> knobs I can turn.
>
> Regards,
> Bill Herrin
>
>
> --
> William Herrin
> bill () herrin us
> https://bill.herrin.us/