Specifications

Switching enable mstp debug 8-125
Software Release 2.7.3
C613-03098-00 REV A
The port parameter specifies which ports on the bridge will have the debug
mode enabled. If port value is not entered, the parameter defaults to all.
The statemachine parameter specifies which state machines will have
debugging enabled, see Table 8-24 on page 8-125. This parameter is valid only
when the debug mode is state. The default value is all.
The value of this parameter is cleared only when the disable mstp debug
command specifies the debug parameter as either state or all. When the debug
mode is not state or all, the statemachine parameter is not cleared.
The timeout parameter specifies the time period, in seconds, during which
debugging will be enabled on the specified ports. Limiting the debugging time
period reduces the risk of the switch and the display being overloaded with
debugging information. Note that this parameter value overrides any previous
MSTP debugging timeout values for these ports, even if they were specified for
other debugging modes. If a timeout value is not specified, then its value by
default is none. When the timeout expires the following events will occur:
■ output will be redirected to the console,
■ debug will be disabled for all modes,
■ statemachine modes will all be disabled.
■ timeout will be set to none.
Example To enable debugging on all ports in MSTI5, use the command:
ena mst deb msti=5 po=all
Related Commands disable mstp debug
show mstp debug
Table 8-24: State Machine Mode in Debug and the State Machine
Option Description
PTM Port timer state machine
PRX Port receive state machine
PPM Port protocol migration state machine
PIM Port information state machine
PTX Port transmit state machine
PRS Port role selection state machine
PRT Port role transitions state machine
PST Port state transition state machine
TCM Topology change state machine