When you disable a stack port and the stack is in the partial-ring state, you cannot disable the port. This message appears: Disabling stack port not allowed with current stack configuration. Reenabling a Stack Port While Another Member Starts Stack Port 1 on Switch 1 is connected to Port 2 on Switch 4. If Port 1 is flapping, you can disable Port 1 with the switch 1 stack port 1 disable privileged EXEC command. While Port 1 on Switch 1 is disabled and Switch 1 is still powered on, follow these steps to reenable a stack port: Procedure Step 1 Disconnect the stack cable between Port 1 on Switch 1 and Port 2 on Switch 4. Step 2 Remove Switch 4 from the stack.
Step 3 Add a switch to replace Switch 4 and assign it switch-number 4. Step 4 Reconnect the cable between Port 1 on Switch 1 and Port 2 on Switch 4 (the replacement switch). Step 5 Reenable the link between the switches. Enter the switch 1 stack port 1 enable privileged EXEC command to enable Port 1 on Switch 1. Step 6 Power on Switch 4. Caution Powering on Switch 4 before enabling the Port 1 on Switch 1 might cause one of the switches to reload. If Switch 4 is powered on first, you might need to enter the switch 1 stack port 1 enable and the switch 4 stack port 2 enable privileged EXEC commands to bring up the link. Monitoring the Device Stack Table 1:
Commands for Displaying Stack Information Managing Switch Stacks Reenabling a Stack Port While Another Member Starts Command Description show switch Displays summary information about the stack, including the status of provisioned switches and switches in version-mismatch mode. show switch stack-member-number Displays information about a specific member. show module Displays summary informaton about the stack. show switch detail Displays detailed information about the stack. show switch neighbors Displays the stack neighbors. Managing Switch Stacks 9