Stack problem on cisco 3750

[yogesh1]

Dear Team,

I have stack connectivity of two cisco 3750 switch but some how one switch is goes faulty so we have purchase one new cisco 3750 so can you please let me know how to add the new cisco switch as member in cisco stack if there is any command required & by using this command we can add the new switch as a member to the stack also let me know after doing the physical connectivity the existing master switch can push the configuration on new switch without doing much??

Please find the below output of current running switch

Tech-C2-FCore01#sh swi
Tech-C2-FCore01#sh switch
Switch/Stack Mac Address : 6c20.564e.0f80
                                           H/W   Current
Switch#  Role   Mac Address     Priority Version  State
----------------------------------------------------------
*1       Master 6c20.564e.0f80     15     1       Ready
 2       Member 0000.0000.0000     0      1       Provisioned

Switch Ports Model              SW Version            SW Image
------ ----- -----              ----------            ----------
*    1 30    WS-C3750X-24       15.0(1)SE3            C3750E-UNIVERSALK9-M

[Mark Malone]

Hi
Just make sure it has the same software and connect it
the sw1 is already set as master p 15 , you could if you want set the priority to be 14 but theres only 2 switches anyway

so to get it working all it needs is same software and connect it up and it will sync into the stack
if you want to pre-provision it follow this doc section
Effects of Adding a Provisioned Switch to a Switch Stack

https://www.cisco.com/c/en/us/td/docs/switches/lan/catalyst3750/software/release/12-2_20_se/configuration/guide/3750scg/swstack.html#wp1187008
you will need to put your port configs back on when its synced but that it really

[yogesh1]

Dear Mark,

Please mention if any command required to add the other switch as a stack member in cisco switch.

Please suggest and I only push the master configuration to other member switch also.

And what is the use of Provisioned Switch & what its use.??

[Mark Malone]

In the link I provided it explains provisioning and Seb has summed it below too

Switch Stack Offline Configuration

You can use the offline configuration feature to provision (to supply a configuration to) a new switch before it joins the switch stack. You can configure in advance the stack member number, the switch type, and the interfaces associated with a switch that is not currently part of the stack. The configuration that you create on the switch stack is called the provisioned configuration. The switch that will be added to the switch stack and that receives this configuration is called the provisioned switch.

You manually create the provisioned configuration through the switch stack-member-number provision type global configuration command. The provisioned configuration also is automatically created when a switch is added to a switch stack that is running Cisco IOS Release 12.2(20)SE or later and when no provisioned configuration exists.

When you configure the interfaces associated with a provisioned switch (for example, as part of a VLAN), the switch stack accepts the configuration, and the information appears in the running configuration. The interface associated with the provisioned switch is not active, operates as if it is administratively shut down, and the no shutdown interface configuration command does not return it to active service. The interface associated with the provisioned switch does not appear in the display of the specific feature; for example, it does not appear in the show vlan user EXEC command output.

The switch stack retains the provisioned configuration in the running configuration whether or not the provisioned switch is part of the stack. You can save the provisioned configuration to the startup configuration file by entering the copy running-config startup-config privileged EXEC command. The startup configuration file ensures that the switch stack can reload and can use the saved information whether or not the provisioned switch is part of the switch stack.

Effects of Adding a Provisioned Switch to a Switch Stack

When you add a provisioned switch to the switch stack, the stack applies either the provisioned configuration or the default configuration to it. Table 5-1 lists the events that occur when the switch stack compares the provisioned configuration with the provisioned switch:

[Seb Rupik]

Hi there,

so long as the replacement switch is the same model as the one specified in the statement

!
switch 2 provision xxxxx
!

...and you have pre-loaded it with the same software version as the rest of the stack (15.0(1)SE3), you should just be able to cable it and power it up.

cheers,

Seb.

[yogesh1]

Dear Seb,

Below mention command we have to type in new switch before adding in stack or after adding in stack.??

Or we have to connect the new switch in switch off mode & then power on..??

!
switch 2 provision xxxxx
!

[Seb Rupik]

Hi there,

The existing config should all ready have the switch provision commands present. You just need to confirm that the model specified by switch 2 provision is the exactly the same model as the new switch you are adding to the stack.

What is the output of:

sh run | inc switch.*provision

...and what is the model of the switch you are adding?

Providing the two match, then cable in the new switch and power it on. It will join the stack as a member and download the config which has been provisioned for switch 2.

cheers,

Seb.

[yogesh1]

Dear Seb,

We have the same model switch as existing running switch.

[Seb Rupik]

Then providing the new switch is running the same IOS version as the master switch you will be safe to add it to the stack.