3Com Switch 4800G 24-Port - Configuring Selective Qinq

136 CHAPTER 14: QINQ CONFIGURATION
Configuring Selective
QinQ
The outer VLAN tag added to a frame by the basic QinQ feature is the VLAN tag
corresponding to the port’s default VLAN ID, while the selective QinQ feature
allows adding different outer VLAN tags based on different inner VLAN tags.
With selective QinQ configured on a port, the device attaches different outer
VLAN tags based on the inner VLAN tags; frames with a VLAN ID out of the range
specified in the raw-vlan-id inbound command are attached the port’s default
VLAN tag as the outer tag.
Follow these steps to configure selective QinQ:
c
CAUTION:
■ An inner VLAN tag corresponds to only one outer VLAN tag. If you want to
change an outer VLAN tag, you must delete the old outer VLAN tag
configuration and configure a new outer VLAN tag.
■ You can configure selective QinQ and basic QinQ on the same port. The switch
uses the basic QinQ function to attach the port’s default VLAN tag as the outer
tag to frames that do not match the selective QinQ mapping rule.
To do… Use the command… Remarks
Enter system view system-view -
Enter Ethernet
port view or
port group
view
Enter Ethernet
port view
interface interface-type
interface-number
Required
Use either command.
Configurations made in
Ethernet port view will take
effect on the current port
only; configuration made in
port group view will take
effect on all ports in the port
group.
Enter port
group view
port-group { manual
port-group-name |
aggregation agg-id }
Enable QinQ on the port(s) qinq enable Required
Disabled by default.
To do… Use the command… Remarks
Enter system view system-view -
Enter Ethernet
port view or
port group
view
Enter Ethernet
port view
interface interface-type
interface-number
Required
Use either command.
Configurations made in
Ethernet port view will take
effect on the current port
only; configurations made in
port group view will take
effect on all ports in the port
group.
Enter port
group view
port-group { manual
port-group-name |
aggregation agg-id }
Enter QinQ view and configure
the outer VLAN tag for the port
to add
qinq vid vlan-id Required
Configure inner VLAN tags
corresponding to the outer
VLAN tags
raw-vlan-id inbound { all |
vlan-id-list }
Required