All, need your help to this move without any downtime. It is a bit complicated.
We have VSS core 6807 switch stack. With redundant downlinks and uplinks. It is a two night event.
We are using two new chassis in the new location so that we don't have to move the heavy thing and in case of back-out we have the old chassis in the old location.
Lets call the old Chassis pair A & B.
Old Active Chassis - B.
Old Standby Chassis - A
C & D will be the new location chassis. All chassis will have the same code. A & B have 5 line cards + SUP blade. D has just a SUP but we will be using the old SUP. from Chassis B. C has 4 line cards + SUP blade. We plan on using the old SUPs so that we don't have to worry about configs.
The plan is to shut down A. Sync B and C. C will be standby and B is still active. We move all connections off of A to C. End of Night-1.
Night-2 - We force fail-over switches/peers. C will now become ACTIVE and B becomes standby. We shut down B. Sync C with D. Move all connections from B to chassis D. End of night 2.
Caveats - We don't have enough line cards to fill C to match B on night one. So we will use the same SUP and 1 line card from A and put it on C. Using the old SUP will make sure we bring the old config along. So it should be like using the same old chassis. We will do something similar on night 2 where we use SUP from B on D.
Using the same SUP as the old switch helps with the config part.
Anything I might be missing here or should take extra precaution for? Thank you for your help in advance.
