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Catalyst 3750 Switch Software Configuration Guide
OL-8550-09
Chapter 5 Managing Switch Stacks
Displaying Stack Information
Displaying Stack Information
To display saved configuration changes after resetting a specific member or the stack, use these
privileged EXEC commands:
Troubleshooting Stacks
• Manually Disabling a StackWise Port, page 5-24
• Re-Enabling a StackWise Port While Another Member Starts, page 5-25
• Understanding the show switch stack-ports summary Output, page 5-25
• Identifying Loopback Problems, page 5-26
• Finding a Disconnected Cable, page 5-31
Manually Disabling a StackWise Port
If a StackWise 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 re-enable
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 StackWise port, the stack operates at half bandwidth.
Table 5-4 Commands for Displaying Stack Information
Command Description
show platform stack passive-links
all
Display all stack information, such as the stack protocol
version.
show platform stack ports {buffer |
history}
Display the StackWise port events and history.
show switch Display summary information about the stack, including the
status of provisioned switches and switches in
version-mismatch mode.
show switch stack-member-number Display information about a specific member.
show switch detail Display detailed information about the stack ring.
show switch neighbors Display the stack neighbors.
show switch stack-ports [summary] Display port information for the stack. Use the summary
keyword to display the StackWise cable length, the stack link
status, and the loopback status.
show switch stack-ring activity
[detail]
Display the number of frames per member that are sent to the
stack ring. The detail keyword displays the number of frames
per member that are sent to the stack ring, the receive queues,
and the ASIC.