H3C S12500X-AF Series, Configuration Manual, Page: 161 / 224

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Figure 54 Basic VLAN mapping terms
One-to-one VLAN mapping
As shown in Figure 55 , one-to-one VLAN mapping is implemented on the customer-side port and
replaces VLAN tags as follows:
•
Replaces the CVLAN with the SVLAN for the uplink traffic.
•
Replaces the SVLAN with the CVLAN for the downlink traffic.
Figure 55 One-to-one VLAN mapping implementation
One-to-two VLAN mapping
As shown in Figure 56 , one-to-two VLAN mapping is implemented on the customer-side port to add
the SVLAN tag for the uplink traffic.
For the downlink traffic to be correctly sent to the customer network, make sure the SVLAN tag is
removed on the customer-side port before transmission. Use one of the following methods to remove
the SVLAN tag from the downlink traffic:
•
Configure the customer-side port as a hybrid port and assign the port to the SVLAN as an
untagged member.
•
Configure the customer-side port as a trunk port and set the port PVID to the SVLAN.
SP
Network-side port
Customer-side port
Uplink traffic
Downlink traffic