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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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This section describes the application of TRILL in data centers.

Application of TRILL in Data Centers

Service Overview
Figure 10-28 shows the data center network of an enterprise.
Figure 10-28 Typical networking of a data center
TRILL is used to build a flat Layer 2 network, which implements unblocked forwarding and smooth VM migration on the entire network. When deploying a data center networking using TRILL, configure basic TRILL functions on all devices and perform the following operations at different network layers:

E-Trunk Application in a TRILL Dual-Homing Network

Service Overview
Figure 10-29 E-Trunk application in a TRILL dual-homing network

As shown in Figure 10-29, the switch connects to RBs through two Eth-Trunks in LACP mode. An E-Trunk is deployed between RB1 and RB2, the Eth-Trunks are added to the E-Trunk, and then the switch is dual-homed to the TRILL network. DFS associates E-Trunk and TRILL to implement the following functions:

  • RB1 and RB2 work in load balancing mode to forward traffic together.
  • When one access link or device fails, traffic can be rapidly switched to another link or device.
Feature Deployment
The following uses an E-Trunk consisting of Eth-Trunks in dynamic LACP mode as an example. Figure 10-29 shows the networking of the transparent mode.
  • Deploy Eth-Trunks in dynamic LACP mode on the two RBs and add the interfaces that connect the RBs and the switch to the Eth-Trunks to implement link-level reliability.
  • Deploy an Eth-Trunk in dynamic or static LACP mode on the switch and add the interfaces that connect the switch and the RBs to the Eth-Trunk to implement link-level reliability.
  • Deploy an E-Trunk on the two RBs and add Eth-Trunks in dynamic LACP mode into the E-Trunk to implement device-level reliability.
  • Deploy DFS and TRILL on the RBs and associate DFS, TRILL, and E-Trunk. This ensures network bandwidth and reliability.
Updated: 2019-08-09

Document ID: EDOC1000041694

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