Question about normal ops - BGP Flaps nightly

Thu Nov 21 17:41:38 UTC 2019

A BGP reset can cause routing trouble for as much as 15 minutes. Since you
have two sessions that mitigates the problem somewhat. But nevertheless
this will not be acceptable.

Regards

Baldur

tor. 21. nov. 2019 10.47 skrev Christopher Morrow <morrowc.lists at gmail.com>:

> Howdy!
> A question of interest to me, currently, is whether it's normal for
> providers to cause BGP flaps to their customers nightly... This seems,
> in my case, to be the provider PROBABLY updating prefix-filters on my
> session(s).
>
> Particularly AS56554 is currently getting v4/v6 transit from 2
> providers, one of which we have 2 links toward. That provider appears
> to flap both of our ipv6 (only) bgp peers each night at about the same
> time each night. This smells like: "filter updates', but something
> that's different than the v4 filter update? (or perhaps they have no
> v4 filtering to update?)
>
> In the end, should customers expect nightly (or on a regular cadence)
> to see their sessions bounce? It hasn't been my experience in other
> situations...
>
> -chris
>
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