HP E4510-48G, Command Reference Manual

Page: 123 / 1334

4-11
Description
Use the display stp history command to view the historic port role calculation information of the
specified MSTI or all MSTIs.
Note that:
z
If you do not specify an MSTI ID, this command will display the historic port role calculation
information of all MSTIs. The displayed information is sorted by MSTI ID, and by port role
calculation time in each MSTI.
z
If you specify an MSTI ID, this command will display the historic port role calculation information of
only this specified MSTI by the sequence of port role calculation time.
Examples
# View the historic port role calculation information of the IRF member device 1 in MSTI 2.
<Sysname> display stp instance 2 history slot 1
--------------- STP slot 1 history trace ---------------
------------------- Instance 2 ---------------------
Port GigabitEthernet1/0/1
Role change : ROOT->DESI (Aged)
Time : 2009/02/08 00:22:56
Port priority : 0.00e0-fc01-6510 0 0.00e0-fc01-6510 128.1
Port GigabitEthernet1/0/2
Role change : ALTER->ROOT
Time : 2009/02/08 00:22:56
Port priority : 0.00e0-fc01-6510 0 0.00e0-fc01-6510 128.2
Table 4-6 display stp history command output description
Field Description
Port Port name
Role change
A role change of the port (“Age” means that the change was caused by
expiry of the received configuration BPDU)
Time Time of port role calculation
Port priority Port priority
display stp region-configuration
Syntax
display stp region-configuration
View
Any view
Default Level
1: Monitor level