HP 6125G HP 6125G & 6125G/XG Blade Switches Layer 2 - LAN Switching Co - Page 107

Table 28, Command output, begin, exclude, display stp history, Field, Description

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|: 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. 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 28 Command output Field Port Role change Time Port priority 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. 99

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99
|
: 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 ---------------
-------------------
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 28
Command output
Field
Description
Port
Port name.
Role change
Role change of the port ("Age" means that the change was caused by expiration of
the received configuration BPDU).
Time
Time of port role calculation.
Port priority
Port priority.