On Fri, Jul 30, 2021 at 10:57 AM Christopher Morrow <morrowc.li...@gmail.com> wrote:
> > > On Thu, Jul 29, 2021 at 9:07 PM Denys Fedoryshchenko < > nuclear...@nuclearcat.com> wrote: > >> On 2021-07-29 20:46, Randy Bush wrote: >> >> Looks like it did shown on news only. >> > >> > :) >> > >> > i wondered >> They have installed devices called "TSPU" on major operators. >> Isolation of specific networks is done without changing BGP >> announcements, obviously. >> > > Denys, can you say anything about how these TSPU operate? > Denys is, I'm sure, 'lmgtfy'ing me right now but: https://therecord.media/academics-russia-deployed-new-technology-to-throttle-twitters-traffic/ https://en.wikipedia.org/wiki/Internet_censorship_in_Russia#Deep_packet_inspection seems to be the system/device in question. > I believe they at least swallow/stop TCP SYN packets toward some > destinations > (or across a link generally), but I'm curious as to what steps the devices > take, > to be able to judge impact seen as either: "broken gear" or "funky TPSU > doing it's thing" > > thanks! > -chris > > >> And the drills do not mean at all "we will turn off the Internet for all >> the clients and see what happens", journalists trivialized it. >> Most likely, they checked the autonomous functioning of specific >> infrastructurally important networks connected to the Internet, >> isolating only them. >> It's not so bad idea in general, if someone find another significant bug >> in common software, to be able to isolate important networks from the >> internet at the click of a button and buy time for patching systems. >> >