Emulex 355 manual Load Balancing, Advanced Functions Automatic Trunking

EMULEX MODEL 355 SAN STORAGE SWITCH	CHAPTER 3: SWITCH MANAGEMENT
USER’S GUIDE

To assign ports to trunk groups:

1.Click Advanced Functions > Automatic Trunking. The Automatic Trunking page appears.

Figure 3-23: Advanced Functions: Automatic Trunking page

2.Select a trunk group for each port by clicking the appropriate Trunk Group option.

3.When finished making changes, click Submit.

Load Balancing

Load balancing builds on the Automatic Trunking functionality by specifying the path that the data uses to flow between multiple switches. Users can manage the switch’s aggregate bandwidth by manually distributing traffic across multiple cascade ports as shown below. A cascade port is a port that is attached to another switch of the same type and configured as a String or Tree Cascade Smart Setting on the Port Smart Settings page. All data flows through the primary cascade, unless the switch is configured differently.

Note: Cascade ports must be properly configured before load balancing will work.

Figure 3-24: Load Balancing Across Multiple Cascade Ports

In Figure 3-24, host 1 uses cascade port 1, while host 2 uses cascade port 2. All traffic will use the lowest numbered (primary) cascade port by default but ports may be configured to use other cascades.

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PART NUMBER 00041407-002 REV. B