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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 an Eth-Trunk .

Application of Eth-Trunk

As shown in Figure 5-28, access switches SwitchB and SwitchC of the data center connect to core switch SwitchA. SwitchB and SwitchC connect to many users, and SwitchA connects to the external network through the egress router. As users increase, many users want to communicate with each other. The links between SwitchA and SwitchB, and between SwitchA and SwitchC require sufficient bandwidth and reliability. Eth-Trunk1 and Eth-Trunk2 are created.

Figure 5-28 Networking diagram of the link aggregation group

You can select the operation mode for the Eth-Trunk according to the following situations:

  • If devices at both ends of the Eth-Trunk link support LACP, Eth-Trunk interfaces in LACP mode are recommended.

  • If the device at either end of the Eth-Trunk does not support LACP, you must configure Eth-Trunks at both ends to work in manual load balancing mode.

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Updated: 2019-08-09

Document ID: EDOC1000041694

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