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Emergency Network Maintenance - August 13, 2019 @ 9:00PM - 2:00AM (Denver DC)

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Update: 12:18 AM
All network maintenance is complete. There was a short outage, roughly 3-5 minutes in duration due to an issue we experienced with the NSSU upgrade. Since we had engineers engaged on-site, we were able to address the problem very quickly.

Update: 11:23PM
NSSU update is completed.

Update: 10:30PM
NSSU update is in progress.

Update: 10:13PM
We are almost complete with re-enabling redundancy on dist3.denver2. Once this is complete, we will perform an NSSU upgrade to the chassis cluster.

Update: 9:09 PM
Our work is beginning.

August 13, 2019
Time: 9:00 PM - 2:00 AM (Mountain Time)

Purpose of Work:
After the network incident on August 12, 2019, we have some critical tasks that we need to carry out this evening to restore redundancy to our network core.

  1. Restore redundancy to our dist3.denver2 switch stack.
  2. Upgrade JunOS on our dist3.denver2 switch stack to the latest JTAC recommended JunOS.

Impact of Work:
This work will impact our clients in two distinct manners:

It will experience network disruptions up to 15 minutes in duration during this maintenance window. Theoretically, it should be possible to do the work we need to do with very little network impact, but after the events which transpired on Monday, it's hard to say that with any level of confidence.

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