unstack cisco 3750 SW

[joe5084]

hello everyone , 

i have read a lot of documents to how to unstack 2 cisco switch & configure port-channel instead ( requirments of the company) 

and now i'm confused with the steps i should do to make that works properly 

switch 1 provision ws-c3750g-24ts-1u
switch 2 provision ws-c3750g-24ts-1u
SW1.#show switch
Switch/Stack Mac Address : 0016.47he.dd00
H/W Current
Switch# Role Mac Address Priority Version State
----------------------------------------------------------
1 Member cac0.16d2.e100 1 0 Ready
*2 Master 0016.47he.dd00 1 0 Ready

can anyone help 

[MHM Cisco World]

Port-Channel for unstack SW 
this not Work, the LACP will see two different MAC i.e.two SW in one port-channel and hence port-channel never be UP
can you share what you read 
MHM

[joe5084]

thanks MHM for responding ! 

please ignore the portchannel configuration ! the problem that i want these two switches works as Standalone mode , so i want to unstack them and i'm confused with the steps i should do

[MHM Cisco World]

Create and Manage Catalyst 3750 Switch Stacks - Cisco

I am sorry I dont have more Acknowledge with remove stack 
but check Link I share maybe it can help you in your  task 
Goodluck Friend 
MHM

[MHM Cisco World]

Just want to point here something 

There are two cases

1- remove stack sw 

2- delete stack from all SW

MHM

[pieterh · Accepted solution]

you  need to
- take one switch off-line (no uplink to the network), let's say switch-2
- remove the stack cables
- reconfigure switch-2 regarding hostname and ip-address so to avoid duplicates
- break the portchannel on the upstream switch or configure a new downstream link for switch-2
   (e.g. remove the link to switch-2 from the etherchannel)
- (configure and ) connect an uplink from switch-2 to the network
this is basically enough to make both switches operational as stand-alone switches

now you need to cleanup your configuration
- on switch-1 remove the line: switch 2 provision ws-c3750g-24ts-1u
- on switch-2 remove the line: switch 1 provision ws-c3750g-24ts-1u
- save configuration on both switches "copy running-config startup-config"
- on switch 2 issue the command  "switch 2 renumber 1"
   (must be done not in config mode, but privileged exec mode)
- reload switch 2 to activate the renumber command (yes this means some downtime)
  after the reload all port Gi2/0/x will be renumbered to Gi1/0/x

[joe5084]

thanks a lot pieterh ! 

just one question please ! did it necessary to renumber the second switch or can i leave it as g2/0/x , because i read that when i renumber the switch i can lose the existing configuration of the ports already configured  !  

[pieterh]

no renumbering is not necessary 
as I said before, your switches can be used normally without cleanup of the configuration

remember you can always save the port-configuration (copy/past from the running-config is a separate file)
- default interface range .....
- paste the port-configuration you saved to restore the settings

[balaji.bandi]

the problem that i want these two switches works as Standalone mode , so i want to unstack them and i'm confused with the steps i should do

if you want to make them standalone more - Power off and remove 2nd switch, make re-number switch number 1 (this become switch number1)

on the Switch 1 (in the stack remove any stack config - or if you like write erase start from scratch).

Note : in your case right now master switch is Switch 2.

did it necessary to renumber the second switch or can i leave it as g2/0/x

if that number works ok - it confuses people start with 2/x/x even thoug one switch.

Slave switch does not have config anything (master switch hold all the configuration)  as mentioned right now your switch 2 as master that is the reason you see the configuration on switch 2.