Specifications

Switching show mstp debug 8-195
Software Release 2.7.3
C613-03098-00 REV A
Examples To display the counters for port 1 to 3, use the command:
sh mst po=1-3 cou
Related Commands enable mstp
disable mstp
reset mstp counter port
set mstp cist
show mstp debug
Syntax SHow MSTp DEBug MSTI={CIST|instance|ALL}
where instance is an instance number from 1 to 4094 for a specific MSTI.
Description This command displays the MSTP debugging modes that are enabled on a
specified MSTP instance or all instances.
Example To display the debug mode for all MSTIs, use the command:
show mstp debug msti=all
Figure 8-27: Example output from the show mstp debug msti command
Related Commands enable mstp debug
disable mstp debug
Invalid Protocol Number of BPDUs that had an invalid Protocol Identifier field or
invalid Protocol Version Identifier field.
Invalid Type Number of BPDUs that had an invalid Type field.
Invalid Message Age Number of BPDUs that had an invalid message age.
Invalid BPDU Length Number of BPDUs that had an incorrect length.
Table 8-46: Parameters in output of the show mstp counter port command
Parameter Meaning
MSTP Instance Port Debug Modes Output Timeout
State Machine Debug Modes
---------------------------------------------------------------------------
CIST 1 MSG, STATE Asyn 0 (16) None
PTM, PIM, PST, PST
2 PKT Asyn 0 (16) 1
All
3 MSG, PKT, STATE Asyn 0 (16) 2
PRX, PPM, PTX, PRS, PRT, PST
4 MSG, STATE Asyn 0 (16) 3
PTM, PIM, PST, PST
---------------------------------------------------------------------------