Emulex 355 - Manual (Page 47)

E MULEX M ODEL 355 SAN S TORAGE S WITCH
U SER ’ S G UIDE C HAPTER 3: S WITCH M ANAGEMENT
E MULEX C ORPORATION 44
P ART N UMBER 00041411-002 R EV . B
To assign ports to trunk groups:
1. Click Advanced Functions > Automatic Trunking.
The Automatic Trunking page appears.
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.
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.
Note: Cascade ports must be properly configured before load balancing will work.
Figure 3-23: Advanced Functions: Automatic Trunking page
Figure 3-24: Load Balancing Across Multiple Cascade Ports