3com S7906E Instruccion De Instalación

 

1-12 

 

Set the link type of the uplink 
port to trunk 

port link-type trunk 

Required 

Configure the uplink port to 
permit the specified SVLANs to 
pass through 

port trunk permit vlan 
{ vlan-id-list | all } 

Required 

By default, a trunk port permits 
only VLAN 1 to pass through.  

 

Table 1-4 Configure an uplink policy for the downlink port 

Enter system view 

system-view 

— 

Create a class and enter class 
view 

traffic classifier tcl-name 
[ operator { and | or } ] 

Required 

Specify the CVLAN for the 
VLAN mapping 

if-match customer-vlan-id 
vlan-id-value 

Required 

Exit to system view 

— 

Create a traffic behavior and 
enter traffic behavior view 

traffic behavior 
behavior-name 

Required 

Specify the SVLAN for the 
VLAN mapping 

nest top-most vlan-id 
vlan-id-value [ dot1p 
dot1p-cos-value ] 

Required 

Exit to system view 

— 

Create a QoS policy and enter 
QoS policy view 

qos policy policy-name 

Required 

Map the CVLAN to the CVLAN 
and the SVLAN by associating 
the traffic class with the traffic 
behavior 

classifier tcl-name behavior 
behavior-name 

Required 

Exit to system view 

— 

 

 

In two-to-two VLAN mapping, the outer VLAN and the inner VLAN carried in a double-tagged uplink 

frame received at the downlink port on the edge device of an SP network are called the original SVLAN 

and CVLAN, and the VLANs that the edge device substitutes for the original SVLAN and CVLAN are 

called the new SVLAN and CVLAN. 

 

Perform two-to-two VLAN mapping on the edge device that connects two SP networks, on Device C in