Allied Telesis AT-8100 Series - Manual (Page 846)

Chapter 57: RSTP Commands
846
SPANNING-TREE LOOP-GUARD
Syntax
spanning-tree loop-guard
Parameters
None
Mode
Port Interface mode
Description
Use this command to enable the BPDU loop-guard feature on the ports. If
a port that has this feature activated stops receiving BPDU packets, the
switch automatically disables it. A port that has been disabled by the
feature remains in that state until it begins to receive BPDU packets again
or the switch is reset. The default setting for BPDU loop-guard on the ports
is disabled.
Confirmation Command
“SHOW RUNNING-CONFIG” on page 170
Example
This example activates the BPDU loop-guard feature on ports 5 and 11:
awplus> enable
awplus# configure terminal
awplus(config)# interface port1.0.5,port1.0.11
awplus(config-if)# spanning-tree loop-guard