We operate some VSS-Bundles with SUP2T (the VSL Link consists of 2 to 4 10GE-Interfaces)
Now we plan to change the VSL-Link to 2 40GE Interfaces.
The VSL-Link Portchannel is configured in mode on. Because we do not have a real Maintenance-window I am looking for a method how to achive this with any significant Service-Interruption.
So my plan would be to disconnect all 10GE-Links of the VSL-Port-Channel except one. Then I would add at least one 40GE Interface to the Port-channel, of cource the 40GE Interface will no be bundeled to
The Port-channel it will remain suspended because of different speed.
After disconnecting the last 10GE-Link in the Portchannel the 40GE interface will not be longer suspended because now it’s the only Interface in the Portchannel and the Portchannel would be up and running after a very short downtime (I assume less than 1 second)
Could this work like I planned, is this a recommended/supported way to migrate ?
When you switch to a different speed, the etherchannel will go down. During the switchover from 10 Gbps to 40 Gbps, you'll need about 5 minutes outage for the physical and configuration change to kick in.
You might want to try to distract them by pointing to a direction and say, "Isn't that Kate Upton?" and when their heads are turned, you swap the connection.
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