We have an off-schedule weekend maintenance window tonight from 8:00pm to 11:00pm PST. The following change will take place:

• 8:00pm PST (0500 UTC) Cisco IOS upgrades. We’ll be upgrading IOS on the two core switches to pickup feature enhancements. See bug 473084 for more details. The systems attached to these switches are multi-homed. No user-facing downtime is expected.

Please let me know if you have any reason why we should not proceed with this planned maintenance. As always, we aim to keep downtime to as little as possible, but unexpected complications can arise causing longer downtime periods than expected. All systems should be operational by the end of the maintenance window.

Feel free to comment directly in this blog (or bug) if you see issues past the planned downtime.