> From: NANOG <[email protected]> On Behalf Of Arnold Nipper > Sent: Wednesday, March 6, 2019 6:57 PM > > On 04.03.2019 19:15, John Kristoff wrote: > > On Mon, 4 Mar 2019 01:42:02 +0000 > > Joshua Miller <[email protected]> wrote: > > > >> A while back I read somewhere that transit providers shouldn't delete > >> communities unless the communities have a specific impact to their > >> network, but my google-fu is failing me and I can't find any sources. > > > > Perhaps you're referring to this recent work? > > > > <https://archive.psg.com/181101.imc-communities.pdf> > > > > See also > > https://2019.apricot.net/assets/files/APKS756/weaponizing-bgp-using- > communities.pdf > > And the list goes on... Route-target extended community anyone? Yup I'm talking about routes being injected to your L3VPN customers'/services' routing-instances(VRFs).
adam
