Core router software upgrade — ZRH

计划安排

We will upgrade the operating system on the two core routers in ZRH, one after the other. Each router is drained before it reloads, so traffic stays on the other one. Expect up to 60 seconds of reduced redundancy per router while its BGP sessions reconverge; no machine should lose connectivity. Out-of-band access is unaffected.

时间线

1. 已完成2024年11月13日 02:16 UTC

   Both core routers in ZRH are on the new release and carrying traffic. No connectivity was lost during the window.

2. 进行中2024年11月13日 01:52 UTC

   We need about 19 more minutes than announced. The work is proceeding normally; the window is extended by that amount.

3. 进行中2024年11月13日 00:00 UTC

   Maintenance has started. The first core router in ZRH has been drained and is reloading.

4. 已排期2024年10月30日 20:12 UTC

   We will upgrade the operating system on the two core routers in ZRH, one after the other. Each router is drained before it reloads, so traffic stays on the other one. Expect up to 60 seconds of reduced redundancy per router while its BGP sessions reconverge; no machine should lose connectivity. Out-of-band access is unaffected.