Reference Guide

ethernet1/1/1 Altr 128.244 128 500 BLK 0 AUTO No
ethernet1/1/2 Altr 128.248 128 500 BLK 0 AUTO No
ethernet1/1/3 Root 128.252 128 500 FWD 0 AUTO No
ethernet1/1/4 Altr 128.256 128 500 BLK 0 AUTO No
Supported Releases 10.2.0E or later
show spanning-tree interface
Displays spanning-tree interface information for Ethernet and port-channels.
Syntax
show spanning-tree interface {ethernet node/slot/port [:subport] | port-channel
port-id} [detail]
Parameters
• ethernet node/slot/port[:subport] — Displays spanning-tree information for a physical interface.
• port-channel port-id — Displays spanning-tree information for a port-channel number (1 to 128).
• detail — (Optional) Displays detailed information on the interface.
Default Not congured
Command Mode EXEC
Usage Information None
Example
OS10# show spanning-tree interface ethernet 1/1/6:2 detail
Port 281 (ethernet1/1/6:2) of RSTP 1 is root Forwarding
Port path cost 2000, Port priority 128, Port Identifier 281.128
Designated root has priority 32768, address 34:17:44:55:66:7f
Designated bridge has priority 32768, address 34:17:44:55:66:7f
Designated port id is 151.128, designated path cost
Timers: message age 0, forward delay 0, hold 0
Number of transitions to forwarding state 1
Link type is point-to-point by default, auto
PVST Simulation is enabled by default
BPDU sent 3, received 7
Supported Releases 10.2.0E or later
spanning-tree bpdulter
Enables or disables BPDU ltering on an interface.
Syntax
spanning-tree bpdufilter {enable | disable}
Parameters
• enable — Enables the BPDU ltering on an interface.
• disable — Disables the BPDU ltering on an interface.
Default Disabled
Command Mode INTERFACE
Usage Information Use the enable parameter to enable BPDU ltering.
Example
OS10(conf-if-eth1/1/4)# spanning-tree bpdufilter enable
Supported Releases 10.2.0E or later
244 Layer 2