H3C Technologies H3C S5560 Series Switches - Manual (Page 250)

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Figure 66 Many-to-one VLAN mapping implementation
One-to-two VLAN mapping
As shown in Figure 67 , 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 configure the SVLAN as the PVID.
Figure 67 One-to-two VLAN mapping implementation
Two-to-two VLAN mapping
As shown in Figure 68 , two-to-two VLAN mapping is implemented on the customer-side port and
replaces VLAN tags as follows:
• Replaces the CVLAN and the SVLAN with the CVLAN' and the SVLAN' for the uplink traffic.
• Replaces the SVLAN' and CVLAN' with the SVLAN and the CVLAN for the downlink traffic.
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