H3C S7500E Series Ethernet Switches Operation Manual

Operation Manual – QoS
H3C S7500E Series Ethernet Switches Chapter 7 VLAN Mapping Configuration
7-2
For downlink data streams, change the SVLAN of the traffic to the original CVLAN of
the traffic by applying a QoS policy to the port.
7.1.3 Applying One-to-One VLAN Mapping
One-to-one VLAN mapping is mainly applied in campus networks as shown in Figure
7-1.
PC
IPTV
VoIP
VLAN 1
VLAN 2
VLAN 3
PC
IPTV
VoIP
VLAN 1
VLAN 2
VLAN 3
PC
IPTV
VoIP
VLAN 1
VLAN 2
VLAN 3
PC
IPTV
VoIP
VLAN 1
VLAN 2
VLAN 3
Home gateway
Home gateway
Corridor
switch
Home gateway
Home gateway
Campus
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
VLAN 1-> VLAN 111
VLAN 2-> VLAN 211
VLAN 3-> VLAN 311
VLAN 1-> VLAN 112
VLAN 2-> VLAN 212
VLAN 3-> VLAN 312
Corridor
switch
Distribution
network
Figure 7-1 One-to-one VLAN mapping application scenario
In such networking environments, different services (including PC, IPTV, and VoIP) of a
home user use different VLANs. In order to differentiate home users, you need to map
the same service of different home users to different VLANs (that is, perform
one-to-one VLAN mapping) on the corridor switches.