Configuring Two-To-Two Vlan Mapping - 3Com S7906E Configuration Manual

To do...
Set the link type of the uplink
port to trunk
Configure the uplink port to
permit the specified SVLANs to
pass through
Table 1-4 Configure an uplink policy for the downlink port
To do...
Enter system view
Create a class and enter class
view
Specify the CVLAN for the
VLAN mapping
Exit to system view
Create a traffic behavior and
enter traffic behavior view
Specify the SVLAN for the
VLAN mapping
Exit to system view
Create a QoS policy and enter
QoS policy view
Map the CVLAN to the CVLAN
and the SVLAN by associating
the traffic class with the traffic
behavior
Exit to system view

Configuring Two-to-Two VLAN Mapping

In two-to-two VLAN mapping, the outer VLAN and the inner VLAN carried in a double-tagged uplink
frame received at the downlink port on the edge device of an SP network are called the original SVLAN
and CVLAN, and the VLANs that the edge device substitutes for the original SVLAN and CVLAN are
called the new SVLAN and CVLAN.
Perform two-to-two VLAN mapping on the edge device that connects two SP networks, on Device C in
Figure 1-2 for example.
Use the command...
port link-type trunk
port trunk permit vlan
{ vlan-id-list | all }
Use the command...
system-view
traffic classifier tcl-name
[ operator { and | or } ]
if-match customer-vlan-id
vlan-id-value
quit
traffic behavior
behavior-name
nest top-most vlan-id
vlan-id-value [ dot1p
dot1p-cos-value ]
quit
qos policy policy-name
classifier tcl-name behavior
behavior-name
quit
1-12
Remarks
Required
Required
By default, a trunk port permits
only VLAN 1 to pass through.
Remarks
—
Required
Required
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Required
Required
—
Required
Required
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