Spanning-Tree Bpdu - Centrecom FS980M/9 Command Reference Manual

Fs980m series fast ethernet managed access switches reference for alliedware plus version 5.4.6-2.x

spanning-tree bpdu

Use this command in Global Configuration mode to configure BPDU (Bridge

Protocol Data Unit) discarding or forwarding, with STP (Spanning Tree Protocol)

disabled on the switch.

See the Usage note about disabling Spanning Tree before using this command,

and using this command to forward unsupported BPDUs unchanged for

unsupported STP Protocols.

There is not a no variant for this command. Instead, apply the discard parameter

to reset it back to the default then re-enable STP with spanning-tree enable

spanning-tree bpdu

{discard|forward|forward-untagged-vlan|forward-vlan}

The discard parameter is enabled by default.

Global Configuration

You must first disable Spanning Tree with the

before you can use this command to then configure BPDU discarding or

This command enables the switch to forward unsupported BPDUs with an

unsupported Spanning Tree Protocol, such as proprietary STP protocols with

unsupported BPDUs, by forwarding BDPU (Bridge Protocol Data Unit) frames

unchanged through the switch.

When you want to revert to default behavior on the switch, issue a spanning-tree

bdpu discard command and re-enable Spanning Tree with a s panning-tree

enable command.

613-50137-01 Rev A

A port that has BPDU filtering enabled will not transmit any BPDUs

and will ignore any BPDUs received. This port type has one of the

following parameters (in Global Configuration mode):

Command Reference for FS980M Series

AlliedWare Plus™ Operating System - Version 5.4.6-2.x

Discards all ingress STP BPDU frames.

Forwards any ingress STP BPDU packets to all ports,

regardless of any VLAN membership.

Forwards any ingress STP BPDU frames to all ports

that are untagged members of the ingress port's

native VLAN.

Forwards any ingress STP BPDU frames to all ports

that are tagged members of the ingress port's native

spanning-tree enable