Allied Telesis IE340 Series User Manual

C613-50631-01 Rev A Command Reference for IE340 Series 759
AlliedWare Plus™ Operating System - Version 5.5.3-0.x
SPANNING TREE COMMANDS
SPANNING
-TREE PORTFAST BPDU-FILTER
spanning-tree portfast bpdu-filter
Overview This command sets the bpdu-filter feature and applies a filter to any BPDUs (Bridge
Protocol Data Units) received. Enabling this feature ensures that configured ports
will not transmit any BPDUs and will ignore (filter out) any BPDUs received. BPDU
Filter is not enabled on a port by default.
Using the no variant of this command to turn off the bpdu-filter, but retain the
port’s status as an enabled port. If the port then receives a BPDU it will change its
role from an edge-port to a non edge-port.
Syntax (Global
Configuration)
spanning-tree portfast bpdu-filter
no spanning-tree portfast bpdu-filter
Syntax (Interface
Configuration)
spanning-tree portfast bpdu-filter
{default|disable|enable}
no spanning-tree portfast bpdu-filter
Default BPDU Filter is not enabled on any ports by default.
Mode Global Configuration and Interface Configuration
Usage notes This command filters the BPDUs and passes only data to continue to act as an edge
port. Using this command in Global Configuration mode applies the portfast
bpdu-filter feature to all ports on the device. Using it in Interface mode applies the
feature to a specific port, or range of ports.The command will operate in both RSTP
and MSTP networks.
Use the show spanning-tree command to display status of the bpdu-filter
parameter for the switch ports.
Example To enable STP BPDU filtering in Global Configuration mode, enter the commands:
awplus# configure terminal
awplus(config)# spanning-tree portfast bpdu-filter
Parameter Description
bpdu-filter A port that has bpdu-filter enabled will not transmit any BPDUs and
will ignore any BPDUs received. This port type has one of the
following parameters (in Interface Configuration mode):
default Takes the setting that has been configured for the whole
device, i.e. the setting made from the Global
configuration mode.
disable Turns off BPDU filter.
enable Turns on BPDU filter.

Allied Telesis IE340 Series Specifications

General

Brand	Allied Telesis
Model	IE340 Series
Category	Switch
Language	English