nanog mailing list archives

Re: Newbie Concern: (BGP) AS-Path Oscillation


From: Randy Bush <randy () psg com>
Date: Mon, 28 Nov 2022 10:13:14 -0800

[ i would have written privately except the damned dmark crap obscured
  your email address.  grrrrr. ]

On one of our prefixes, we are detecting continuous “BGP AS-Path
Changes” in the order of 1,000 announcements per hour---practically
one every 3-4 seconds.

where is this being 'detected?'  i.e. from what vantage point?

is it safe to assume that your outbound announcements to your two
upstreams are stable?

of course, if you would care to divulge a prefix showing this symptom,
folk might be able to find clues.

randy

---
randy () psg com
`gpg --locate-external-keys --auto-key-locate wkd randy () psg com`
signatures are back, thanks to dmarc header butchery


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