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Troubleshooting the Switch Stack

• Stack member 1 is the stack master

• Stack member 3 is a provisioned switch

and want to remove the provisioned information and to avoid receiving an error message, you can

remove power from stack member 3, disconnect the cables between the stack member 3 and switches

to which it is connected, reconnect the cables between the remaining stack members, and enter the

no switch stack-member-number provision global configuration command.

Troubleshooting the Switch Stack

Temporarily Disabling a Stack Port

If a stack port is flapping and causing instability in the stack ring, to disable the port, enter the switch

stack-member-number stack port port-number disable privileged EXEC command. To reenable the port,

enter the switch stack-member-number stack port port-number enable command.

Note

Be careful when using the switch stack-member-number stack port port-number disable command. When

you disable the stack port, the stack operates at half bandwidth.

A stack is in the full-ring state when all members are connected through the stack ports and are in the ready

state.

The stack is in the partial-ring state when the following occurs:

• All members are connected through their stack ports but some are not in the ready state.

• Some members are not connected through the stack ports.

Procedure

Step 1

Step 2

When you disable a stack port and the stack is in the full-ring state, you can disable only one stack port. This

message appears:

Managing Switch Stacks

Command or Action

switch stack-member-number stack port

port-number disable

Example:

Switch# switch 2 stack port 1 disable

switch stack-member-number stack port

port-number enable

Example:

Switch# switch 2 stack port 1 enable

Managing Switch Stacks

Purpose

Disables the specified stack port.

Reenables the stack port.