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Catalyst 6500 Series Switch Command Reference—Release8.4
OL-6244-01
Chapter2 Catalyst 6500 Series Switch and ROM Monitor Commands show spantree statistics
show spantree statistics
To show spanning tree statistical information, use the show spantree statistics command.
show spantree statistics mod/port [vlan]
show spantree statistics mod/port mistp-instance instance
show spantree statistics mod/port mst instance
show spantree statistics bpdu
Syntax Description
Defaults This command has no default settings.
Command Types Switch command.
Command Modes Normal.
Usage Guidelines When you enter the show spantree statistics bpdu command, the switch displays all transmitted,
received, processed, and dropped BPDUs. The system also displays the rate of these BPDUs in seconds.
All BPDU counters give BPDU statistics from the last time that the counters were cleared or from the
time that the system was booted up.
Examples This example shows how to display statistical information:
Console> (enable) show spantree statistics 1/2 1005
SpanningTree enabled for vlanNo = 1005
BPDU-related parameters
port spanning tree enabled
state disabled
port_id 0xcccf
port number 0x7eb
path cost 80
message age (port/VLAN) 0(10)
designated_root 00-10-2f-52-eb-ec
mod/port Number of the module and the port on the module.
vlan (Optional) Number of the VLAN; valid values are from 1 to 4094.
mistp-instance
instance Displays MISTP instance-specific information; valid values are from 1 to 16.
mst instance Displays MST instance-specific information; valid values are from 0 to 15.
bpdu Displays the total number of spanning tree BPDUs. See the “Usage
Guidelines” section for more information.