alt Hacker NewsFacebook is (AIUI) 100% IPv6-only on their internal network, and has been for many years:
* https://engineering.fb.com/2017/01/17/production-engineering...
* https://www.internetsociety.org/blog/2014/09/facebook-launch...
IPv4 is actually the "leftover" stuff they have to deal with at the front end.
But they are an eye-balls heavy service, with a lot of mobile devices, which also tend to be IPv6-native.
Replies
toast0 • today at 4:26 PM
From my time there, this is for the internal prod network. Corporate networking was dual stack (which was pretty useful because it was common for v4 or v6 to break, but usually not at the same time)
It also just takes actual policy will. Somebody has to actually say "No" when the supplier who promised an IPv6 product says afterwards actually they meant IPv6 "ready" and they should have put an asterisk because really only the next version will be "ready", and er, so the product they've delivered doesn't actually work with IPv6 but that's fine right?
"No". Not every human is psychologically prepared to do that. They want to acquiesce, to go along to get along, you need somebody to be firm. "No".