H3C Technologies H3C S12500-X Series Switches - Manual (Page 151)

140
Figure 40 Application scenario of one-to-one VLAN mapping
In Figure 40 , the network is planned as follows:
• Each home gateway uses different VLANs to transmit the PC, VoD, and VoIP services.
• To further sub-classify each type of traffic by customer, perform one-to-one VLAN mapping on the
wiring-closet switches, assigning a separate VLAN for each type of traffic from each customer. The
required total number of VLANs in the network can be very large.
Application scenario of one-to-two and two-to-two VLAN
mapping
Figure 41 shows a typical application scenario in which two remote sites of VPN A, Site 1 and Site 2,
must communicate across two SP networks, SP 1 and SP 2.
Campus switch
Distribution
network
DHCP client
DHCP server
Wiring - closet
switch
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
Wiring-closet
switch
VLAN 1 - > VLAN 199
VLAN 2 - > VLAN 299
VLAN 3 - > VLAN 399
VLAN 1 -> VLAN 200
VLAN 2 -> VLAN 300
VLAN 3 -> VLAN 400
PC
VoD
VoIP
VLAN 2
Home gateway
VLAN 1
VLAN 3
PC
VoD
VoIP
VLAN 2
Home gateway
VLAN 1
VLAN 3