Reference Guide

Example
OS10# debug spanning-tree bpdu rx
Supported Releases 10.2.0E or later
show spanning-tree vlan
Displays RPVST+ status and conguration information by VLAN ID.
Syntax
show spanning-tree vlan vlan-id
Parameters vlan vlan-id — Enter the VLAN ID number (1 to 4094)
Default Not congured
Command Mode EXEC
Usage Information None
Example
OS10# show spanning-tree
Spanning tree enabled protocol rapid-pvst
VLAN 1
Executing IEEE compatible Spanning Tree Protocol
Root ID Priority 32769, Address 74e6.e2f5.bb80
Root Bridge hello time 2, max age 20, forward delay 15
Bridge ID Priority 32769, Address 74e6.e2f5.bb80
We are the root of VLAN 1
Configured hello time 2, max age 20, forward delay 15
Interface Designated
Name PortID Prio Cost Sts Cost Bridge ID PortID
----------------------------------------------------------------------------
ethernet1/1/1 128.260 128 200000000 FWD 0 32769 0000.0000.0000 128.260
ethernet1/1/2 128.264 128 200000000 FWD 0 32769 0000.0000.0000 128.264
ethernet1/1/3 128.268 128 200000000 FWD 0 32769 0000.0000.0000 128.268
ethernet1/1/4 128.272 128 200000000 FWD 0 32769 0000.0000.0000 128.272
ethernet1/1/5 128.276 128 200000000 FWD 0 32769 0000.0000.0000 128.276
ethernet1/1/6 128.280 128 200000000 FWD 0 32769 0000.0000.0000 128.280
ethernet1/1/7 128.284 128 200000000 FWD 0 32769 0000.0000.0000 128.284
ethernet1/1/8 128.288 128 200000000 FWD 0 32769 0000.0000.0000 128.288
ethernet1/1/9 128.292 128 200000000 FWD 0 32769 0000.0000.0000 128.292
ethernet1/1/10 128.296 128 200000000 FWD 0 32769 0000.0000.0000 128.296
ethernet1/1/11 128.300 128 200000000 FWD 0 32769 0000.0000.0000 128.300
ethernet1/1/12 128.304 128 200000000 FWD 0 32769 0000.0000.0000 128.304
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.
Layer 2 191