Configuring dynamic load sharing, Lossless dynamic load sharing – Dell POWEREDGE M1000E User Manual
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Web Tools Administrator’s Guide
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Configuring dynamic load sharing
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DRAFT: BROCADE CONFIDENTIAL
Configuring dynamic load sharing
The exchange-based routing policy depends on the Fabric OS dynamic load sharing feature (DLS)
for dynamic routing path selection. When this policy is in force, DLS is always enabled and cannot
be disabled.
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.
Use the following procedure to configure dynamic load sharing.
1. Open the Switch Administration window as described in
“Opening the Switch Administration
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:
•
DCX with 8G blades
•
DCX-4S with 8G blades
•
Brocade 300
•
Brocade 5100
•
Brocade 5300
•
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.
Perform the following procedure to enable or disable loss less DLS.
1. Open the Switch Administration window as described in
“Opening the Switch Administration
2. Select the Routing tab.