Port-Vlan-Forwarding-Priority - Allied Telesis AT-IX5-28GPX Manual

VLAN C
OMMANDS
- - -
PORT VLAN FORWARDING PRIORITY

port-vlan-forwarding-priority

Overview 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.
For example, If EPSR is set to the highest priority protocol to block traffic on vlan10
on port1.0.2 then this stops MAC Thrashing from forwarding traffic on vlan10 on
port1.0.2.
CAUTION
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 .
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
Configuration
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
416 Command Reference for AT-IX5-28GPX High Availability, High Power Video Surveillance PoE Switch
: The loop-protection and none parameter options must not be set on an
Guide.
Parameter Description
Sets EPSR as the highest priority protocol. Use this parameter on
epsr
an EPSR master node to avoid unexpected broadcast storms.
Sets Loop Protection as the highest priority protocol.
loop-
Note that this option must not be set on an EPSR master node.
protection
Use the epsr parameter option on an EPSR master node to avoid
unexpected broadcast storms.
Sets the protocols to have equal priority. This was the previous
none
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.
AlliedWare Plus™ Operating System - Version 5.4.5-0.x
EPSR Feature Overview and
C613-50057-01 REV A