Connectivity Guide

– ethernet node/slot/port[:subport] — Deletes the spanning-tree counters from a physical
port.
– port-channel number — Deletes the spanning-tree counters for a port-channel interface, from 1 to
128.
Default Not congured
Command Mode EXEC
Usage Information Clear all STP counters on the device per the Ethernet interface or port-channel.
Example
OS10# clear spanning-tree counters interface port-channel 10
Supported Releases 10.2.0E or later
clear spanning-tree detected-protocol
Forces the MST ports to renegotiate with neighbors.
Syntax
clear spanning-tree detected-protocol [interface {ethernet node/slot/
port[:subport] | port-channel number}]
Parameters
• interface — Enter the interface type:
– ethernet node/slot/port[:subport] — Enter the Ethernet interface information, from 1 to 48.
– port-channel number — Enter the port-channel number, from 1 to 128.
Default Not congured
Command Mode EXEC
Usage Information Use this command to force the RPVST+ port to re-negotiate with neighbors. If you use this command without
parameters, the command applies to each device port.
Example
OS10# clear spanning-tree detected-protocol interface ethernet 1/1/1
Supported Release 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, from 1 to 4093.
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
244 Layer 2