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CX11x, CX31x, CX710 (Earlier Than V6.03), and CX91x Series Switch Modules V100R001C10 Configuration Guide 12

The documents describe the configuration of various services supported by the CX11x&CX31x&CX91x series switch modules The description covers configuration examples and function configurations.
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Application Environment

Application Environment

This section describes the applicable environment of basic QinQ.

Application of Basic QinQ

As shown in Figure 5-67, tenant 1 and tenant 2 in a data center are located in different positions, and are connected to SwitchA and SwitchB on the core/backbone network. To ensure security of services and save core/backbone network VLAN IDs, traffic between two tenants needs to be transparently transmitted through the core/backbone network, tenants using the same service in different branches are allowed to communicate, and tenants using different services need to be isolated. Basic QinQ is configured to meet the preceding requirements.

Figure 5-67 Networking of basic QinQ

Table 5-22 describes VLAN assignment for tenant 1 and tenant 2.

Table 5-22 VLAN assignment for tenant 1 and tenant 2

Tenant Name

VLAN ID Range

Outer VLAN ID

Tenant 1

2 to 500

10

Tenant 2

500 to 2500

20

Configure QinQ on SwitchA and SwitchB so that tenants using the same service in different branches are allowed to communicate and tenants using different services need to be isolated.

  • Configure SwitchA to encapsulate outer VLAN 10 to packets entering Interface1 and outer VLAN 20 to packets entering Interface2.

  • Configure SwitchB to encapsulate outer VLAN 10 to packets entering Interface1 and outer VLAN 20 to packets entering Interface2.

  • Configure Interface3 on SwitchA and SwitchB to allow packets from VLAN 10 and VLAN 20.

Application of VLAN ID-based Selective QinQ

As shown in Figure 5-68, in a data center, tenants lease office and production service servers. Production services are transmitted in VLANs 10 to 30, and office services are transmitted in VLANs 31 to 50. Tenants are located in positions A and B, and tenant devices are connected through SwitchA and SwitchB of the core/backbone network. To ensure service security and save VLAN IDs of the core/backbone network, it is required that traffic in positions A and B be transmitted through the core/backbone network, users using the same service be allowed to communicate, and users using different services be isolated. You can configure VLAN ID-based selective QinQ to meet the requirements.

Figure 5-68 Networking of VLAN ID-based selective QinQ

Table 5-23 shows the planning of outer VLAN IDs.

Table 5-23 VLAN assignment of tenants

Service Name

Range of VLAN IDs

Outer VLAN

Production service

10-30

100

Office service

31-50

200

Configure selective QinQ on SwitchA and SwitchB so that users using the same service in different branches are allowed to communicate, and users using different services are isolated.

  • On SwitchA, add VLAN 100 to packets that have inner VLAN IDs 10 to 30 and enter Interface1, and VLAN 200 to packets that have inner VLAN IDs 31 to 50 and enter Interface1.

  • On SwitchB, add VLAN 100 to packets that have inner VLAN IDs 10 to 30 and enter Interface1, and VLAN 200 to packets that have inner VLAN IDs 31 to 50 and enter Interface1.

  • Configure Interface2 on SwitchA and SwitchB to allow packets from VLAN 100 and VLAN 200.

Application of MQC-based Selective QinQ

As shown in Figure 5-69, video and data information is stored on the servers. A user device transmits IPTV and Internet access services, and connects to the server through the enterprise backbone network. SwitchB and SwitchC are edge devices of the enterprise backbone network. To save VLAN IDs on the enterprise backbone network, traffic needs to be transparently transmitted on the enterprise backbone network. In addition, IPTV services need to be transmitted only on the video server, Internet access services need to be transmitted only on the data server, and different services need to be differentiated. MQC-based Selective QinQ can be configured on SwitchB and SwitchC to meet the preceding requirements.

Figure 5-69 Networking of MQC-based selective QinQ

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Updated: 2019-08-09

Document ID: EDOC1000041694

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