Brocade Web Tools Administrator's Guide - Supporting Fabric OS v7.0.0 (53-1002152-01, March 2012)

Web Tools Adminstrator’s Guide 171
53-1002152-01
Configuring dynamic load sharing
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When the port-based policy is in force, you can enable DLS to optimize routing. When DLS is
enabled, it shares traffic among multiple equivalent paths between switches. DLS recomputes load
sharing either when a switch boots up or each time an E_Port or FX_Port goes online or offline.
Enabling this feature allows a path to be discovered automatically by the FSPF path-selection
protocol.
For more information regarding DLS, refer to the dlsset command in the Fabric OS Command
Reference.
To configure dynamic load sharing, perform the following steps.
1. Open the Switch Administration window as described in “Opening the Switch Administration
window” on page 33.
2. Select the Routing tab.
3. Select On in the Dynamic Load Sharing (DLS) area to enable dynamic load sharing or select Off
to disable dynamic load sharing.
When the exchange-based routing policy is in effect, the DLS radio buttons display on the
Routing tab
4. Click Apply.
The warning message, “Credit Recovery for Long distance links should be turned off using CLI
while enabling DLS” displays.
5. Click OK.
Lossless dynamic load sharing
Lossless dynamic load sharing (DLS) is supported in following platforms:
• Brocade FC16-32
• Brocade FC16-48
• Brocade DCX with 8G blades
• Brocade DCX-4S with 8G blades
• Brocade 300
• Brocade 5100
• Brocade 5300
• Brocade 6510
• Brocade 7800 on FC ports.
• Brocade FX8-24 on FC ports.
You can enable this loss less feature from WT. If you try to enable loss less when DLS is OFF, an
error message displays.
To enable or disable loss less DLS, perform the following steps.
1. Open the Switch Administration window as described in “Opening the Switch Administration
window” on page 33.
2. Select the Routing tab.
3. Select On in the Loss Less (DLS) area to enable the mode, or select Off to disable dynamic load
sharing.