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Figure 58 Two-to-two VLAN mapping implementation
Two-to-three VLAN mapping
As shown in Figure 59 , two-to-three VLAN mapping is implemented on the customer-side port to add
an outermost VLAN tag to double-tagged uplink traffic.
For the downlink traffic to be correctly sent to the customer network, use one of the following
methods to remove the outermost tag from the traffic:
•
Configure the customer-side port as a trunk port, configure the outermost VLAN as the PVID,
and assign the port to the PVID.
•
Configure the customer-side port as a hybrid port and assign the port to the outermost VLAN as
an untagged member.
Figure 59 Two-to-three VLAN mapping implementation
VLAN mapping configuration task list
To add or replace VLAN tags for packets, you can configure both VLAN mapping and a QoS policy.
The QoS policy takes effect if a configuration conflict occurs. For information about QoS policies, see
ACL and QoS Configuration Guide
.
IMPORTANT:
Use the appropriate VLAN mapping methods for the devices in the network.
To configure VLAN mapping:
Tasks at a glance Remarks
Configuring one-to-one VLAN mapping
Configure one-to-one VLAN mapping on the
wiring-closet switch, as shown in
Figure 52 .
Configuring one-to-two VLAN mapping
Configure one-to-two VLAN mapping on PE 1 and