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NE40E-M2 V800R010C10SPC500 Feature Description - LAN Access and MAN Access 01

This is NE40E-M2 V800R010C10SPC500 Feature Description - LAN Access and MAN Access
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QinQ Tunneling

QinQ Tunneling

QinQ tunneling increases the number of VLANs by adding a same outer VLAN tag to tagged packets that enter the same interface.

On the network shown in Figure 7-3, Company 1 has two branches which are connected to PE1, and Company 2 has three branches. Two of them are connected to PE2, and the third one is connected to PE1. Company 1 and Company 2 can plan their own VLANs.

Figure 7-3 QinQ tunneling

To allow branches to communicate within Company 1 or Company 2 but not between the two companies, configure QinQ tunneling on PE1 and PE2. The configuration roadmap is as follows:

  • On PE1, user packets entering Port 1 and Port 3 are encapsulated with an outer VLAN tag 10, and user packets entering Port 2 are encapsulated with an outer VLAN tag 20.

  • On PE2, user packets entering Port 1 and Port 2 are encapsulated with an outer VLAN tag 20.

  • Port 4 on PE1 and Port 3 on PE2 allow the packets tagged with VLAN 20 to pass.

Table 7-1 shows planning of outer VLAN tags of Company 1 and Company 2.

Table 7-1 Outer VLAN tag planning of Company 1 and Company 2

Company Name

VLAN ID Range

Outer VLAN ID

Company 1

2 to 500

10

Company 2

500 to 4094

20

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Updated: 2019-01-02

Document ID: EDOC1100058405

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