Allied Telesis AlliedWare Plus Operating System Version 5.4.4C (x310-26FT,x310-26FP,x310-50FT,x310-50FP) - Manual (Page 432)

VLAN Commands
Software Reference for x310 Series Switches
17.4 AlliedWare Plus TM Operating System - Version 5.4.4C C613-50046-01 REV A
port-vlan-forwarding-priority
Use this command to set the highest priority protocol to control transitions from blocking
to forwarding traffic. This command prioritizes switch port forwarding mode control,
when more than one of EPSR, Loop Protection, and MAC thrashing protection protocols
are used on the switch.
EPSR, Loop Protection and MAC Thrashing use the same mechanism to block or forward
traffic. This command sets the highest priority protocol to control transitions from
blocking to forwarding traffic. Setting the priority stops contention between protocols.
Use the no variant of this command to restore the default highest priority protocol back to
the default of EPSR.
For more information about EPSR, see the section “EPSR Introduction and
Configuration” on page 57.1 .
Syntax port-vlan-forwarding-priority {epsr|loop-protection|none}
no port-vlan-forwarding-priority
Default By default, the highest priority protocol is EPSR
Mode Global Configuration
Caution loop-protection and none parameter options must not be set on an EPSR
master node. Use the epsr parameter option on an EPSR master node instead.
Setting this command incorrectly on an EPSR master node could cause
unexpected broadcast storms.
Parameter Description
epsr Sets EPSR as the highest priority protocol. Use this parameter on
an EPSR master node to avoid unexpected broadcast storms.
loop-
protection Sets Loop Protection as the highest priority protocol.
Note that this option must not be set on an EPSR master node.
Use the epsr parameter option on an EPSR master node to avoid
unexpected broadcast storms.
none Sets the protocols to have equal priority. This was the previous
behavior before this command was added, and allows protocols
to override each other to set a port to forwarding a VLAN.
Note that this option must not be set on a EPSR master node.
Use the epsr parameter option on an EPSR master node to avoid
unexpected broadcast storms.