Alcatel-Lucent 6850-48 Network Guide

Configuring an 802.1Q VLAN

Configuring 802.1Q

page 21-6

OmniSwitch AOS Release 6 Network Configuration Guide

To remove 802.1Q tagging from a selected port, use the same command as above with a no keyword 
added, as shown:

-> vlan 5 no 802.1q 8 

Note. The link aggregation group must be created first before it can be set to use 802.1Q tagging

For more specific information, see the 

 command section in the OmniSwitch CLI Reference 

Guide.

Once a port has been set to receive and send tagged frames, it will be able to receive or send tagged or 
untagged traffic. Tagged traffic will be subject to 802.1Q rules, while untagged traffic will behave as 
directed by normal switch operation. (Setting up rules for non-802.1Q traffic is defined in 

) A port can also be configured to accept only tagged frames.

To configure a port to only accept tagged frames, enter the frame type command at the CLI prompt:

-> vlan 802.1q 3/4 frame type tagged

To configure a port back to accepting both tagged and untagged traffic, use the same command with the all 
keyword, as shown:

-> vlan 802.1q 3/4 frame type all

Note. If you configure a port to accept only VLAN-tagged frames, then any frames received on this port 
that do not carry a VLAN identification (i.e., untagged frames or priority-tagged frames) will be discarded 
by the ingress rules for this port. Frames that are not discarded by this ingress rule are classified and 
processed according to the ingress rules for this port.

When a port is set to support both tagged and untagged traffic, multiple VLANs for 802.1Q traffic can be 
added to the port, but only one VLAN can be used to support untagged traffic. The untagged traffic VLAN 
will always be the port’s default VLAN.

Note. You cannot configure a link aggregation group to accept only tagged frames.

For more specific information, see the 

 command section in the OmniSwitch CLI 

Reference Guide.