nanog mailing list archives

Re: BGP Route Monitoring


From: Paul Rolland <rol () witbe net>
Date: Fri, 7 Jan 2022 13:54:44 +0100

Hello,

On Fri, 7 Jan 2022 09:50:25 +0200
Saku Ytti <saku () ytti fi> wrote:

On Thu, 6 Jan 2022 at 15:48, Sandoiu Mihai <Mihai.Sandoiu () wwz ch> wrote:

I am trying to find a solution that does not require much scripting or
customization.  

Suggestion to run BMP is a fine suggestion. Another option is plain
old BGP, setup iBGP+best-external (w/ add-path if you may receive >1
copy from local eBGP neighbours) from these boxes to a collector bgp,
maybe with a prefix-list filter to send only this prefix. Then have
the collector box raise an alert when it doesn't receive the route
from one of them.

What about setting up a machine with exabgp installed, a iBGP session with
the exabgp instance, and a small script parsing the updates received by
exabgp to raise an alarm whenever $CONDITION is met ?

https://github.com/Exa-Networks/exabgp

Best,
Paul

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