H3C SOHO IE4300, Command Reference Manual

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--------------- 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
Designated 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
128.153
Designated priority : 0.00e0-fc01-6510 0 0.00e0-fc01-6510 128.2
128.153
# In PVST mode, display the port role calculation history on the specified slot in VLAN 2.
<Sysname> display stp vlan 2 history slot 1
--------------- STP slot 1 history trace ---------------
------------------- VLAN 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
Designated 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
Designated priority : 0.00e0-fc01-6510 0 0.00e0-fc01-6510 128.2
Table 7 Command output
Field Description
Port Port name.
Role change
Role change of the port ( Aged means that the change was caused by expiration
of the received configuration BPDU).
Time Time of port role calculation.
Port priority
Current priority of the port:
•
For STP mode, RSTP mode, and ISTs (MSTI 0) in MSTP mode, port priority
includes common root bridge ID, cost of the path to the common root bridge,
regional root bridge ID, cost of the path to the regional root bridge,
designated bridge ID, designated port ID, and ID of the port that receives
messages from the designated port, which are separated with spaces.
•
For PVST mode and CSTs in MSTP mode, port priority includes regional
root bridge ID, cost of the path to the regional root bridge, designated bridge
ID, designated port ID, and ID of the port that receives messages from the
designated port, which are separated with spaces.
Designated priority
Priority information reported by the current port as a designated port:
•
For STP mode, RSTP mode, and ISTs (MSTI 0) in MSTP mode, port priority
includes common root bridge ID, cost of the path to the common root bridge,