nanog mailing list archives
Re: Prepending with another ASN you don't own
From: Randy Bush <randy () psg com>
Date: Sat, 17 Dec 2016 08:22:42 +0900
this is called path poisoning. an italian friend used it in his phd thesis. a few friends and i used it to detect use of default across the internet.I've done this in the past as a work-around for insufficient BGP community support. Just prepending the AS I wanted to ignore the paths. But, if the problem is an anycast CDN choosing a sub-optimal path to reach you, you might try reaching out to them. They're probably just as, if not more interested, in getting their traffic to you as efficiently as possible.
apologies. i should have been more explicit. both of the examples were using path poisoning for routing research. it is not a technique i would reccommend in normal operations. randy
Current thread:
- Prepending with another ASN you don't own Andrew Imeson (Dec 16)
- Re: Prepending with another ASN you don't own Rubens Kuhl (Dec 16)
- Re: Prepending with another ASN you don't own Randy Bush (Dec 16)
- Re: Prepending with another ASN you don't own Jon Lewis (Dec 16)
- Re: Prepending with another ASN you don't own Randy Bush (Dec 16)
- Re: Prepending with another ASN you don't own Jon Lewis (Dec 16)
- Re: Prepending with another ASN you don't own Job Snijders (Dec 16)
- Re: Prepending with another ASN you don't own Roland Dobbins (Dec 16)