When we built the SWITCHdrive service on the OpenStack platform that was to become SWITCHengines, that platform didn’t really support IPv6 yet. But since Spring 2016 it does. This week, we enabled IPv6 in SWITCHdrive and performed some internal tests. Today around noon, we published its IPv6 address (“AAAA record”) in the DNS. We quickly saw around 5% of accesses use IPv6 instead of IPv4.
In the evening, this percentage climbed to about 14%. This shows the relatively good support for IPv6 on Swiss broadband (home) networks, notably by the good folks at Swisscom.
The lower percentage during office (and lecture, etc.) hours shows that the IPv6 roll-out to higher education campuses still has some way to go. Our SWITCHlan backbone has been running “dual-stack” (IPv4 and IPv6 in parallel) in production for more than 10 years, and most institutions have added IPv6 configuration to their connections to us. But campus networks are wonderfully complex, so getting IPv6 deployed to every network plug and every wireless access point is a daunting task. Some schools are almost there, including some large ones that don’t use SWITCHdrive—yet!?—so the 5% may underestimate the extent of the roll-out for the overall SWITCH community. The others will follow in their footsteps. They can count on the help of the community and benefit from IPv6 training courses organized by our colleagues in the security and network teams. Contact us if you need help!
[Update: After a few weeks, the proportion of IPv6 traffic increased somewhat. Now we typically see around 10% during office hours and 20% during weekends. So the “retail” sector is still clearly ahead of (our academic) enterprise networks in terms of IPv6 penetration.]