Reconfiguring A Switch Stack

[04sabr]

Hi,

My team is going to be taking switch stacks and condensing them because we have a lot of unnecessary extra switches being used. I was wondering what the devices will do/ what this reconfiguration is going to look like. What kind of changes do we need to make to ensure uptime? What will the devices do on their own?

Thank you.

[Hamed Fazel]

Your qustion is so generall.

If you are going to use back plane stacking and not using stack wise just connect the stack cables based on manual then the switches become one switch and then you can configure the ports.

[ahollifield]

What exactly do you mean?  What exactly are you trying to accomplish?  What model switch?

[Leo Laohoo]

I do not understand the question, however, if we have to consolidate the switchports the first thing we always do is identify which ports can be unpatched.  We look at each ports and identify ports that have not been used for, say, 90 days.  

If the switches are 9300, then use the command "sh interface link".  The output is self-explanatory.

[Joseph W. Doherty]

What logically happens, when you power off a switch member, its ports disappear.  It also breaks the ring, which if you had a ring, does not impact operation but does impact performance.

If the stack member being removed was the stack master, you may impact operation, for a short time (how long is dependent on configuration and peers, and only L2 vs. L2&L3).

Usually, I believe, Cisco recommends whenever disconnecting or connecting stack port connections, one side of the connection be powered off.  This works fine for a stack member being removed but is a possible issue for reconnecting the ring for the reduced stack.

Oh, if you remove multiple members but break the daisy chain you'll create two devices that are logically the same device.