Debug Spanning-Tree Switch - Cisco 4500M Command Reference Manual

debug spanning-tree switch

debug spanning-tree switch
To enable switch shim debugging, use the debug spanning-tree switch command. To disable debugging
output, use the no form of this command.
Syntax Description
all
errors
general
pm
rx
decode
errors
interrupt
process
state
tx
decode
Defaults
This command has no default settings.
Command Modes
Privileged EXEC
Command History Release
12.1(8a)EW
Usage Guidelines
This command is supported only by the supervisor engine and can be entered only from the switch
console.
Catalyst4500 Series SwitchCiscoIOS Command Reference—Release 12.2(18)EW
2-68
debug spanning-tree switch {all | errors | general | pm | rx {decode | errors | interrupt |
process} | state | tx [decode]}
no debug spanning-tree switch {all | errors | general | pm | rx {decode | errors | interrupt |
process} | state | tx [decode]}
Displays all spanning tree switch shim debugging messages.
Enables debugging of switch shim errors or exceptions.
Enables debugging of general events.
Enables debugging of port manager events.
Displays received BPDU-handling debugging messages.
Enables debugging of the decode received packets of the spanning tree switch shim.
Enables debugging of the receive errors of the spanning tree switch shim.
Enables shim ISR receive BPDU debugging on the spanning tree switch.
Enables process receive BPDU debugging on the spanning tree switch.
Enables debugging of the state changes on the spanning tree port.
Enables transmit BPDU debugging on the spanning tree switch shim.
(Optional) Enables decode transmitted packets debugging on the spanning tree
switch shim.
Modification
Support for this command was introduced on the Catalyst 4500 series switch.
Chapter2 Cisco IOS Commands for the Catalyst 4500 Series Switches
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