Users Guide

Usage
Information
This command applies only to STP-enabled ports. The command takes effect only when the BPDU guard
is configured on a port. The recovery timer value is applicable only for shutdown case. For blocking case,
the default value of 300 seconds is used.
The recovery timer starts whenever there is a BPDU guard violation.
The no version of the command resets the timer to the default value.
Example
OS10(config)# errdisable recovery interval 45
Supported
Releases
10.4.2.0 or later
clear spanning-tree detected-protocol
Forces the 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 configured
Command Mode EXEC
Usage
Information
Use this command to force the 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
spanning-tree bpdufilter
Enables or disables BPDU filtering on an interface.
Syntax
spanning-tree bpdufilter {enable | disable}
Parameters
● enable — Enables the BPDU filter on an interface.
● disable — Disables the BPDU filter on an interface.
Default Disabled
Command Mode INTERFACE
Usage
Information
Use the enable parameter to enable BPDU filtering.
Example
OS10(conf-if-eth1/1/4)# spanning-tree bpdufilter enable
Supported
Releases
10.2.0E or later
512 Layer 2