H3C Technologies H3C S5560 Series Switches - Manual (Page 259)

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Task Command
Display VLAN mapping
information.
display vlan mapping [ interface interface-type interface-number ]
VLAN mapping configuration examples
One-to-one and many-to-one VLAN mapping configuration
example
Network requirements
As shown in Figure 69 :
• Each household subscribes to PC, VoD, and VoIP services, and obtains the IP address through
DHCP.
• On the home gateways, VLANs 1, 2, and 3 are assigned to PC, VoD, and VoIP traffic, respectively.
To isolate traffic of the same service type from different households, configure one-to-one VLAN
mappings on the wiring-closet switches. This feature assigns one VLAN to each type of traffic from each
household.
To save VLAN resources, configure many-to-one VLAN mappings on the campus switch (Switch C). This
feature transmits the same type of traffic from different households in one VLAN. Use VLANs 501, 502,
and 503 for PC, VoD, and VoIP traffic, respectively.
Table 18 VLAN mapping for each service
Service
VLANs on home
gateways
VLANs on wiring-closet switches
(Switch A and Switch B)
VLANs on campus
switch (Switch C)
PC VLAN 1 VLANs 101, 102, 103, 104 VLAN 501
VoD VLAN 2 VLANs 201, 202, 203, 204 VLAN 502
VoIP VLAN 3 VLANs 301, 302, 303, 304 VLAN 503