Question about normal ops - BGP Flaps nightly

Thu Nov 21 09:57:29 UTC 2019

On Thu, Nov 21, 2019 at 4:48 AM Jared Mauch <jared at puck.nether.net> wrote:
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>
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> > On Nov 21, 2019, at 4:45 AM, Christopher Morrow <morrowc.lists at gmail.com> wrote:
> >
> > 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...
>
>
> This seems unusual, perhaps a bug in their tooling or their config where it’s doing a hard clear vs soft clear on the session?

This was sort of my thinking, but I was unsure if there was some new
process and/or bug which other edge-y folk were dealing with of late.
I can/will ask the provider in question (a local apac provider) if
they are aware of the actions they are taking.