Legacy support on IPv6-only infra - Facebook Engineering
Over the past few years, Facebook has been transitioning its data center infrastructure from IPv4 to IPv6. We began by dual-stacking our internal network — adding IPv6 to all IPv4 infrastructure — and decided that all new data center clusters would be brought online as IPv6-only. We then worked on moving all applications and services [...]Read More...
17 Jan 2017 ... Legacy support on IPv6-only infra · All requests to Facebook enter the Facebook network through a series of network devices and are routed to a ...