3com 5500-ei pwr Instruccion De Instalación

 

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When configuring selective QinQ, go to these sections for information you are interested in: 

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Selective QinQ Overview 

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Selective QinQ is an enhanced application of the VLAN-VPN feature. With the selective QinQ feature, 

you can configure inner-to-outer VLAN tag mapping, according to which you can add different outer 

VLAN tags to the packets with different inner VLAN tags.  

The selective QinQ feature makes the service provider network structure more flexible. You can classify 

the terminal users on the port connecting to the access layer device according to their VLAN tags, and 

add different outer VLAN tags to these users. In the public network, you can configure QoS policies 

based on outer VLAN tags to assign different priorities to different packets, thus providing differentiated 

services. See 

 for details.  

Figure 2-1 Diagram for a selective QinQ implementation 

VIP

VLAN101~200

User

VLAN8 ~100

IP Phone

VLAN201~300

VLAN 8~300

VLAN 1001~1003

Server

VLAN8~100

VIP Server

VLAN101~200

VoIP Device

VLAN201~300

SwitchA

Public Network

VLAN1001/1002/1003

 

 

In this implementation, Switch A is an access device of the service provider. The users connecting to it 

include common customers (in VLAN 8 to VLAN 100), VIPs (in VLAN 101 to VLAN 200), and IP