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.
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.