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Catalyst 3750-X and 3560-X Switch Command Reference
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Chapter 2 Catalyst 3750-X and 3560-X Cisco IOS Commands
show switch
Usage Guidelines Expressions are case sensitive. For example, if you enter | exclude output, the lines that contain output
do not appear, but the lines that contain Output appear.
This command displays these states:
• Waiting—A switch is booting up and waiting for communication from other switches in the stack.
The switch has not yet determined whether or not it is a stack master.
Stack members not participating in a stack master election remain in the waiting state until the stack
master is elected and ready.
• Initializing—A switch has determined whether its stack master status. If it is not the stack master,
it is receiving its system- and interface-level configuration from the stack master and loading it.
• Ready—The member has completed loading the system- and interface-level configurations and can
forward traffic.
• Master Re-Init—The state immediately after a master re-election and a different member is elected
master. The new master is re-initializing its configuration. This state applies only to the new master.
• Ver Mismatch—A switch in version mismatch mode. Version-mismatch mode is when a switch
joining the stack has a different stack protocol minor version number than the master.
• SDM Mismatch—A switch in Switch Database Management (SDM) mismatch mode. SDM
mismatch is when a member does not support the SDM template running on the master.
• Provisioned—The state of a preconfigured switch before it becomes an active member of a switch
stack, or the state of a stack member after it has left the switch stack. The MAC address and the
priority number in the display are always 0 for the provisioned switch.
A typical state transition for a stack member (including a stack master) booting up is Waiting ->
Initializing -> Ready.
A typical state transition for a stack member becoming a stack master after a stack master election is
Ready -> Master Re-Init -> Ready.
A typical state transition for a stack member in version mismatch (VM) mode is Waiting ->
Ve r
Mismatch.
You can use the show switch command to identify whether the provisioned switch exists in the switch
stack. The show running-config and the show startup-config privileged EXEC commands do not
provide this information.
The display also includes stack MAC-persistency wait-time if persistent MAC address is enabled.
Examples This example shows summary stack information:
Switch> show switch
Current
Switch# Role Mac Address Priority State
--------------------------------------------------------
6 Member 0003.e31a.1e00 1 Ready
*8 Master 0003.e31a.1200 1 Ready
2 Member 0000.000.0000 0 Provisioned
This example shows detailed stack information:
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