216
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 16 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
Figure 66 Network diagram
Configuration procedure
1.
Configure Switch A:
Campus switch
Switch C
Distribution
network
DHCP client
DHCP server
Wiring-closet
Switch A
VLAN 1 -> VLAN 101
VLAN 2 -> VLAN 201
VLAN 3 -> VLAN 301
VLAN 1 -> VLAN 102
VLAN 2 -> VLAN 202
VLAN 3 -> VLAN 302
PC
VoD
VoIP
VLAN 2
Home gateway
VLAN 1
VLAN 3
PC
VoD
VoIP
VLAN 2
Home gateway
VLAN 1
VLAN 3
VLAN 1 -> VLAN 103
VLAN 2 -> VLAN 203
VLAN 3 -> VLAN 303
VLAN 1 -> VLAN 104
VLAN 2 -> VLAN 204
VLAN 3 -> VLAN 304
PC
VoD
VoIP
VLAN 2
Home gateway
VLAN 1
VLAN 3
PC
VoD
VoIP
VLAN 2
Home gateway
VLAN 1
VLAN 3
Wiring-closet
Switch B
GE1/0/1
GE1/0/2
GE1/0/1
GE1/0/2
GE1/0/1
GE1/0/2
GE1/0/3
GE1/0/3
GE1/0/3
GE1/0/1
Switch D
VLAN 103
–
104 -> VLAN 501
VLAN 203
–
204 -> VLAN 502
VLAN 303
–
304 -> VLAN 503
VLAN 101
–
102 -> VLAN 501
VLAN 201
–
202 -> VLAN 502
VLAN 301
–
302 -> VLAN 503