nanog mailing list archives

Re: Do you use or see FQDN capability?


From: Randy Bush via NANOG <nanog () lists nanog org>
Date: Tue, 18 Nov 2025 14:55:07 +0900

In our measurement/monitoring systems we do record the BGP router ID of
every neighbor.  This is handy as it should[*] be unique to an AS

uh, my memory is that the spec is that it is unique WITHIN an AS.  two
ASs can have routers with the same routerID.

randy
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