Tomorrow evening (Tuesday, Jan 10th) we will be upgrading the OS on one of our border routers. To do this requires upgrading hardware so that there will be room for the new OS.

What this means is there will be 2 outages as a result of the OS upgrade. One for the hardware upgrade and one for the OS upgrade. Both outages should last no more than a couple minutes. This is the time that it takes for the primary router module to fail over to the secondary. During the hardware upgrade there will be a forced failover after the secondary is upgraded so that the primary can be upgraded. During the OS upgrade the there will be an automatic failover to the secondary when the primary is booted to the new OS (the secondary will have already booted to standby mode with the new OS).

This upgrade is one of the final steps in preparation for a fully redundant border mesh so that in the future we will be able to work on either border router without any significant outage.

The work will begin at 11:00 pm with the outages happening between 11:00pm and 1:00 am.