Viewing MSTP Statistics

About this task

Display MSTP statistics to see MSTP related bridge-level statistics.

Procedure

Display the MSTP related bridge-level statistics:

show spanning-tree mstp statistics

Example

Switch:1#show spanning-tree mstp statistics

================================================================================
                             MSTP Bridge Statistics
================================================================================
Mstp UP Count                   : 1
Mstp Down Count                 : 0
Region Config Change Count      : 12
Time since topology change      : 8 day(s), 02H:54M:33S
Topology change count           : 10
New Root Bridge Count           : 25

Job Aid

The following table describes the output for the show spanning-tree mstp statistics command.

Table 1. show spanning-tree mstp statistics field descriptions
Parameter	Description
MSTP Up Count	The number of times the MSTP port has been enabled. A Trap is generated on the occurrence of this event.
MSTP Down Count	The number of times the MSTP port has been disabled. A Trap is generated on the occurrence of this event.
Region Config Change Count	The number of times the switch detects a Region Configuration Identifier Change. The switch generates a trap on the occurrence of this event.
Time since topology change	The time (in hundredths of a second) since the TcWhile Timer for any port in this Bridge was non-zero for Common Spanning Tree context.
Topology change count	The count of at least one non zero TcWhile timers on this Bridge for Common Spanning Tree context.
New Root Bridge Count	The number of times this Bridge has detected a Root Bridge change for Common Spanning Tree context. A Trap is generated on the occurrence of this event.