Re: Telia Not Withdrawing v6 Routes

[Olivier Benghozi <olivier.benghozi () wifirst fr>]

Probably a ghost route. Such thing happens :(

https://labs.ripe.net/Members/romain_fontugne/bgp-zombies

Their (nice) LG shows that it's still advertised from a router of theirs in Frankfurt (iBGP next hop 
::ffff:2.255.251.224 – so by the way they use 6PE).

Your best option would probably be to re-advertise the exact same prefix, then re-withdraw it, then yell at Telia's NOC 
if it fails...


Some years ago we experienced something similar (it was a router of TI Sparkle still advertising a prefix of us in Asia 
to their clients, that they were previously receiving from our former transit GTT – we were advertising it in 
Europe...).


> Le 16 nov. 2020 à 02:58, Matt Corallo <nanog () as397444 net> a écrit :
>
> Has anyone else experienced issues where Telia won't withdraw (though will happily accept an overriding) prefixes for 
> the past week, at least?
>
> eg 2620:6e:a003::/48 was a test prefix and should not now appear in any DFZ, has not been announced for a few days at 
> least, but shows up in Telia's LG and RIPE RIS as transiting Telia. Telia's LG traceroute doesn't of course, go 
> anywhere, traces die immediately after a hop or with a !N.
>
> Wouldn't be a problem except that I needed to withdraw another route due to a separate issue which wouldn't budge out 
> of Telia's tables until it was replaced with something else of higher pref.
>
> Matt