Cisco Catalyst 3560-X Command Reference Manual page 1154

show platform stack manager
Catalyst 3750-X and 3560-X Switch Command Reference
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The summary information about the switch stack shows these states:
Waiting—A switch is booting up and waiting for communication from other switches in the stack.
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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,
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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
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forward traffic.
Master Re-Init—The state immediately after a master re-election and a different member is elected
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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
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joining the stack has a different stack protocol minor version number than the master.
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 to a stack master after an master election is Ready -> Master
Re-Init -> Ready.
A typical state transition for a stack member in version mismatch (VM) mode is Waiting ->
Ver Mismatch.
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Appendix C Catalyst 3750-X and 3560-X Show Platform Commands
OL-21522-02