RPKI race

Tue Jun 16 23:42:44 UTC 2020

Any default route to a non-ROV enabled upstream ?
Do you receive the test prefix from more than one upstream and the previous
test success could be a function of upstream ROV ?

Rubens

On Tue, Jun 16, 2020 at 8:35 PM Baldur Norddahl <baldur.norddahl at gmail.com>
wrote:

> Hello
>
> I noticed that we regressed and started failing the test at
> https://isbgpsafeyet.com/. Investigating I found that we apparently had
> some routes in the validation state "unknown" that should have been either
> invalid or valid. Including the test prefix which was received via NL-IX
> (and Cogent on IPv6).
>
> We do however have plenty of prefixes that are validated and received from
> the same sources.
>
> This is a Juniper MX204 router running 20.1R1.11. I tried a few things
> including "clear bgp neighbor xxx soft-inbound" (supposed to rerun the
> import policy where RPKI marking and check happens) which did not fix it.
> Doing a "clear bgp neighbor xxx", which disconnects the peer and reconnects
> after a slight delay, did however fix the issue. But I have to do that for
> every peer we received the prefix from and potentially we could have
> trouble with every peer we have :-(
>
> This router was software upgraded and rebooted two days ago. I suspect a
> race condition. What if the router started BGP sessions before it was able
> to communicate with the RPKI validation server or before the RPKI database
> was synchronized?
>
> I find it a bit disappointing that we this easily ended up with a bad
> validation state and apparently there is little I can do about it, except
> for walking through all our peers and BGP reset them. Which frankly is an
> unacceptable disruption of traffic flow.
>
> Regards,
>
> Baldur
>
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