C3750 stack issue

Unanswered Question
Mar 25th, 2010

Hi all...
I have a big problem removing the master switch on a stack.
If i remove it and i delete the provision i loose the configuration of the other member/master elected, like vlan's ,port configuration etc etc.
How i can solve it if i follow the right procedure to remove a member or master from a stack?


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raffaelecarusi Thu, 03/25/2010 - 10:37

Hi Raza,thanks for your reply..I've just followed the instruction and i've done all the steps as descibed.
For example i have this scenario

4x WS-C3750 48PS in stackwise

I would remove switch #1 (the master one) and i would like to renumber switch #2 to 1 , 3 to 2 and 4 to 3

Switch numer #1 have all fastethernet on vlan 20, Switch #2 have some fastethernet on vlan 20 and others on vlan 300 and the same things on the other two switch.

Question; How i can copy the configuration of a single switch in the stack to prevent any problem on vlan's and the other settings of fastethernet ports when i renumber all the switch in the stack as follow?

When i remove switch #1  ,I see the #2 reelected as master, 3 and 4 member and number 1 provisioned.
Now i renumber 2 3 and 4 as described and i reload all stack.
After reload i see switch number 1 master 2 and 3 member and #4 provisioned.
At this point if i remove the provision i lost the configuration on all the switches that come back to it's default (like vlan 1 and no particular configuration of the ports).

What's wrong?



Reza Sharifi Thu, 03/25/2010 - 12:45

Hi Raffaele,

When you renumber your switches, do you assign priority to each switch?  For example if you want switch-1 to be always the master, then I would assign priority 15 which is the highest to that one and assign 12 to switch-2 and 10 to switch-3 and see what happens.



raffaelecarusi Fri, 03/26/2010 - 03:17

Obviously i assign priority to the switch just like you said but i lost the configuration(specially vlan's)of the others when i delete the provisioned one.
If i wanna maintain the same vlan's of these switches ,wich will be renumbered (i.e. #2 to #1, 3# to 2# etc.etc.) as described in my previous post,how i can i do? I know that i can copy a configuration of a single one to just maintain this informations about vlan's and port configuration but i don't know how. Or What are the right steps to maintain vlan's on a switch that i want to renumber?

Thank you so much and thanks for your patience!!!


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