FYI for the group -- we just published this: https://blog.cloudflare.com/how-verizon-and-a-bgp-optimizer-knocked-large-parts-of-the-internet-offline-today/
_________________ *Justin Paine* Director of Trust & Safety PGP: BBAA 6BCE 3305 7FD6 6452 7115 57B6 0114 DE0B 314D 101 Townsend St., San Francisco, CA 94107 On Mon, Jun 24, 2019 at 2:25 PM Mark Tinka <mark.ti...@seacom.mu> wrote: > > > On 24/Jun/19 18:09, Pavel Lunin wrote: > > > > > Hehe, I haven't seen this text before. Can't agree more. > > > > Get your tie back on Job, nobody listened again. > > > > More seriously, I see no difference between prefix hijacking and the > > so called bgp optimisation based on completely fake announces on > > behalf of other people. > > > > If ever your upstream or any other party who your company pays money > > to does this dirty thing, now it's just the right moment to go explain > > them that you consider this dangerous for your business and are > > looking for better partners among those who know how to run internet > > without breaking it. > > We struggled with a number of networks using these over eBGP sessions > they had with networks that shared their routing data with BGPmon. It > sent off all sorts of alarms, and troubleshooting it was hard when a > network thinks you are de-aggregating massively, and yet you know you > aren't. > > Each case took nearly 3 weeks to figure out. > > BGP optimizers are the bane of my existence. > > Mark. > >