Command Reference Guide

SROS Command Line Interface Reference Guide Frame Relay Sub-Interface Config Command Set

spanning-tree bpdufilter [enable | disable]

Use the spanning-tree bpdufilter command to block BPDUs from being transmitted and received on this

interface. To return to the default value, use the no form of this command.

Syntax Description

enable Enable the BPDU filter.

disable Disable the BPDU filter.

Default Values

By default, this command is set to disable.

Command Modes

(config-interface)# Interface Configuration Mode

Valid interfaces include: Ethernet (eth 0/1), virtual PPP interfaces (ppp 1), virtual

Frame Relay sub-interfaces (fr 1.20), and atm sub-interfaces (1.2).

Functional Notes

The purpose of this command is to remove a port from participation in the spanning-tree. This might be

beneficial while debugging a network setup. It normally should not be used in a live network.

Usage Examples

The following example enables the bpdufilter on the interface:

(config)#interface ppp 1

(config-ppp 1)#spanning-tree bpdufilter enable