This same issue happened in Los Angeles a number of years ago, but for IPv4 and v6. They need to setup sane BGP timers, and/or advocate the use of BFD for BGP sessions both customer facing and internal.
Ryan On Nov 15 2020, at 5:58 pm, Matt Corallo <na...@as397444.net> wrote: > 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