HP 6125G Command Reference Manual page 107

|: Filters command output by specifying a regular expression. For more information about regular
expressions, see Fundamentals Configuration Guide.
begin: Displays the first line that matches the specified regular expression and all lines that follow.
exclude: Displays all lines that do not match the specified regular expression.
include: Displays all lines that match the specified regular expression.
regular-expression: Specifies a regular expression, a case-sensitive string of 1 to 256 characters.
Description
Use display stp history to display the historical port role calculation information of the specified MSTI or
all MSTIs.
In STP/RSTP mode, the displayed information is sorted by port role calculation time.
In MSTP mode, follow these guidelines:
If you do not specify any MSTI, this command displays the historical port role calculation
•
information of all MSTIs. The displayed information is sorted by MSTI ID and by port role calculation
time in each MSTI.
If you specify an MSTI, this command displays the historical port role calculation information of the
•
specified MSTI by the sequence of port role calculation time.
Examples
# In MSTP mode, display the historical port role calculation information of IRF member switch 1 in MSTI
2.
<Sysname> display stp instance 2 history slot 1
--------------- STP slot 1 history trace ---------------
-------------------
Port GigabitEthernet1/0/1
Role change
Time
Port priority : 0.00e0-fc01-6510 0 0.00e0-fc01-6510 128.1
Port GigabitEthernet1/0/2
Role change
Time
Port priority : 0.00e0-fc01-6510 0 0.00e0-fc01-6510 128.2
Table 28 Command output
Field
Port
Role change
Time
Port priority
Instance 2 ---------------------
: ROOT->DESI (Aged)
: 2009/02/08 00:22:56
: ALTER->ROOT
: 2009/02/08 00:22:56
Description
Port name.
Role change of the port ("Age" means that the change was caused by expiration of
the received configuration BPDU).
Time of port role calculation.
Port priority.
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