Prepending

Tue Oct 18 15:29:19 UTC 2022

On Tue, Oct 18, 2022 at 4:59 AM Sandoiu Mihai <Mihai.Sandoiu at wwz.ch> wrote:
> We have witnessed a lot of prepending in the last days, we got a few internet routes that have 30…200 prepends, did you face the same issue?

Hi Sandoiu,

Not a direct answer to your question, but broadly speaking any route
with an AS path longer than the Internet is hops wide is a mistake
that can be safely filtered from your routing table. That's somewhere
around 64.

Regards,
Bill Herrin

-- 
For hire. https://bill.herrin.us/resume/