Date: January 21, 2021
Time: 8:00 PM - 12:00 AM (Mountain Standard Time)
Purpose of Work:
We will be performing the work necessary to remove our 1801 California Street / Downtown Denver Data Center from our dark fiber ring. The work that will be conducted Thursday night is as follows:
1. Groom VLANs from dist3.denver2 to dist3.dtc1. During this work, our networking team will logically migrate the layer 3 interfaces for routed VLANs that are still homed to dist3.denver2. We will be performing this work gradually, migrating a few VLANs every few minutes.
2. If time allows, we will move on to physically removing the switch stack from our network.
Impact of Work:
During the VLAN grooming work, there will be a short 3-5 minute network disruption on a per-network basis as the layer 3 interfaces are shutdown on dist3.denver2 and activated on dist3.dtc1.
When we remove dist3.denver2 from the network, there may be a few brief periods of latency and packet loss impacting the whole network while we turn down links connecting dist3.denver to our network and repatch those links to dist3.dtc1, as needed.
