Allied Telesis AlliedWare Plus Operating System Version 5.4.4C (x310-26FT,x310-26FP,x310-50FT,x310-50FP) - Manual (Page 449)

VLAN Commands
Software Reference for x310 Series Switches
C613-50046-01 REV A AlliedWare Plus TM Operating System - Version 5.4.4C 17.21
switchport mode trunk
Use this command to set the switching characteristics of the port to trunk. Received
frames are classified based on the VLAN characteristics, then accepted or discarded based
on the specified filtering criteria.
Syntax switchport mode trunk [ingress-filter {enable|disable}]
Default By default, ports are in access mode, are untagged members of the default VLAN (vlan1),
and have ingress filtering on.
Mode Interface Configuration
Usage A port in trunk mode can be a tagged member of multiple VLANs, and an untagged
member of one native VLAN.
To configure which VLANs this port will trunk for, use the switchport trunk allowed vlan
command.
Example
Validation
Command show interface switchport
Parameter Description
ingress-filter Set the ingress filtering for the frames received.
enable Turn on ingress filtering for received frames. This is the default.
disable Turn off ingress filtering to accept frames that do not meet the
classification criteria.
awplus# configure terminal
awplus(config)# interface port1.0.3
awplus(config-if)# switchport mode trunk ingress-filter enable