R0106-HP MSR Router Series Layer 2 - LAN Switching Command Reference(V7)

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instance-id ] }&<1-10>, where &<1-10> indicates that you can specify up to 10 instances or instance
ranges. The value range for the instance-id argument is 0 to 4094, and the value 0 represents the CIST.
vlan vlan-id-list: Displays the historical port role calculation information for the VLANs specified by a
VLAN ID list. They are in the format of vlan-id-list = { vlan-id [ to vlan-id ] }&<1-10>, where &<1-10>
indicates that you can specify up to 10 vlan-id [ to vlan-id ] parameters. The value range for the vlan-id
argument is 1 to 4094.
slot slot-number: Displays the historical port role calculation information on the specified card.
slot-number represents the number of the slot that houses the card. If this option is not specified, this
command displays the historical port role calculation information on all cards.
Usage guidelines
In STP or RSTP mode, the displayed information is sorted by port role calculation time.
In PVST mode:
• If you do not specify any VLAN, this command displays the historical port role calculation
information for all VLANs. The displayed information is sorted by VLAN ID and by port role
calculation time in each VLAN.
• If you specify a VLAN list, this command displays the historical port role calculation information for
the specified VLANs. The displayed information is sorted by VLAN ID and by port role calculation
time in each VLAN.
In MSTP mode:
• If you do not specify any MSTI, this command displays the historical port role calculation
information for all MSTIs. The displayed information is sorted by MSTI ID and by port role
calculation time in each MSTI.
• If you specify an MSTI list, this command displays the historical port role calculation information for
the specified MSTIs. The displayed information is sorted by MSTI ID and by port role calculation
time in each MSTI.
Examples
# (MSR2000/MSR3000.) In MSTP mode, display the historical port role calculation information for
MSTI 2.
<Sysname> display stp instance 2 history
------------------- Instance 2 ---------------------
Port GigabitEthernet2/1/1
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
Designated priority : 0.00e0-fc01-6510 0 0.00e0-fc01-6510 128.1
Port GigabitEthernet2/1/2
Role change : ALTER->ROOT
Time : 2009/02/08 00:22:56
Port priority : 0.00e0-fc01-6510 0 0.00e0-fc01-6510 128.2
128.153
Designated priority : 0.00e0-fc01-6510 0 0.00e0-fc01-6510 128.2
128.153