Vlan Mapping Configuration Tasks - H3C S3600V2 SERIES Layer 2-Lan Switching Configuration Manual

Figure 72 Many-to-one VLAN mapping implementation
Each DHCP snooping entry contains information about one DHCP client, including its IP address, MAC
address, and CVLAN. For more information about DHCP snooping, see Layer 3—IP Services
Configuration Guide.
Two-to-two VLAN mapping
Implement two-to-two VLAN mapping through the following configurations, as shown in
For uplink traffic, apply an inbound policy on the customer-side port to replace the SVLAN with a
•
new SVLAN, and apply an outbound policy on the network-side port to replace the CVLAN with a
new CVLAN.
For downlink traffic, apply an outbound policy on the customer-side port to replace the double tags
•
with the original VLAN tag pair.
Figure 73 Two-to-two VLAN mapping implementation
Customer
network
Network-side port

VLAN mapping configuration tasks

Use the VLAN mapping methods as appropriate to the roles of your switches in the network, as described
in this table:
Task
Configuring one-to-one VLAN mapping
Configuring many-to-one VLAN mapping
Configuring two-to-two VLAN mapping
Inbound
uplink policy
SVLAN CVLAN Data
SVLAN CVLAN Data
downlink policy
Customer-side port
Outbound
uplink policy
SVLAN'
SVLAN'
Outbound
Uplink traffic
Switch role
Wiring-closet switch
Campus switch
Edge switch between SP networks
206
Figure
CVLAN' Data
SP network
CVLAN' Data
Downlink traffic
73.