nanog mailing list archives
Re: DMARC ViolationAS21299 - 46.42.196.0/24 ASN prepending 255 times
From: Joe Maimon <jmaimon () jmaimon com>
Date: Thu, 31 Mar 2022 18:13:27 -0400
Joe Provo wrote:
On Fri, Mar 25, 2022 at 11:08:01AM +0300, Paschal Masha wrote::) probably the longest prepend in the world. A thought though, is it breaking any standard or best practice procedures?That said, prepending pretty much anything more than your current view of the Internet's diameter in ASNs is useless in practice. Cascading effects are considered in https://datatracker.ietf.org/doc/draft-ietf-grow-as-path-prepending/ where a decent low number (5) is propsed. Chers, Joe
So is there a good way to signal along with a BGP route that the originator of the route wants you to know that this route has very high suckage factor and even if you normally prefer your peers customers whatever, you should perhaps think twice about that for this route, cause its really last resort.
Because as-path is an overloaded multimeaning traffic influencing hammer that has imprecise and frequently undesirable results. And if that were not the case, than discussions of its relative size compared to internet diameter would be much more relevant.
Joe
Current thread:
- AS21299 - 46.42.196.0/24 ASN prepending 255 times Erik Sundberg (Mar 24)
- Re: AS21299 - 46.42.196.0/24 ASN prepending 255 times surfer (Mar 24)
- Re: AS21299 - 46.42.196.0/24 ASN prepending 255 times Erik Sundberg (Mar 24)
- Re: DMARC ViolationAS21299 - 46.42.196.0/24 ASN prepending 255 times Paschal Masha (Mar 25)
- Re: DMARC ViolationAS21299 - 46.42.196.0/24 ASN prepending 255 times Bjørn Mork (Mar 25)
- Re: DMARC ViolationAS21299 - 46.42.196.0/24 ASN prepending 255 times Joe Provo (Mar 25)
- Re: DMARC ViolationAS21299 - 46.42.196.0/24 ASN prepending 255 times Baldur Norddahl (Mar 25)
- Re: DMARC ViolationAS21299 - 46.42.196.0/24 ASN prepending 255 times Jon Lewis (Mar 27)
- Re: DMARC ViolationAS21299 - 46.42.196.0/24 ASN prepending 255 times Baldur Norddahl (Mar 27)
- Re: DMARC ViolationAS21299 - 46.42.196.0/24 ASN prepending 255 times Joe Maimon (Mar 31)
- Re: DMARC ViolationAS21299 - 46.42.196.0/24 ASN prepending 255 times Matthew Petach (Mar 31)
- Re: DMARC ViolationAS21299 - 46.42.196.0/24 ASN prepending 255 times Joe Maimon (Mar 31)
- Re: AS21299 - 46.42.196.0/24 ASN prepending 255 times surfer (Mar 24)
- RE: DMARC ViolationAS21299 - 46.42.196.0/24 ASN prepending 255 times Adam Thompson (Mar 25)
- Re: DMARC ViolationAS21299 - 46.42.196.0/24 ASN prepending 255 times Brian Knight via NANOG (Mar 25)
- Re: DMARC ViolationAS21299 - 46.42.196.0/24 ASN prepending 255 times Matthew Petach (Mar 25)
- Re: DMARC ViolationAS21299 - 46.42.196.0/24 ASN prepending 255 times Amir Herzberg (Mar 25)
- Re: DMARC ViolationAS21299 - 46.42.196.0/24 ASN prepending 255 times Matthew Petach (Mar 25)