Serial-over-LAN sessions dropping in YUL

时间线

1. 已解决2024年1月18日 22:06 UTC

   Resolved at 22:06 UTC. Duration: 1 h 20 min. The change that caused this has been added to our pre-change checklist.

2. 观察中2024年1月18日 21:58 UTC

   Sessions now stay up. Watching for 8 minutes.

3. 已确定原因2024年1月18日 21:14 UTC

   An idle-timeout change on the management firewall is closing the UDP flows that SOL uses. The timeout has been raised back.

4. 调查中2024年1月18日 20:47 UTC

   Serial-over-LAN console sessions in YUL are being dropped after a few seconds since 20:46 UTC. KVM sessions are fine.