Dynamic Load Sharing; Setting Dls; Static Route Assignment - HP A7533A - Brocade 4Gb SAN Switch Base Administrator's Manual

Dynamic load sharing

The exchange-based routing policy depends on the Fabric OS Dynamic Load Sharing feature (DLS) for
dynamic routing path selection. When using the exchange-based routing policy, DLS is enabled by default
and cannot be disabled. In other words, you cannot enable or disable DLS when the exchange-based
routing policy is in effect.
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 when any
of the following occurs:
• A switch boots up
• An E_Port goes offline and online
• An EX_Port goes offline
• A device goes offline

Setting DLS

1. Connect to the switch and log in as admin.
2. Enter the dlsShow command to view the current DLS setting.
One of the following messages appears:
• DLS is set indicates that dynamic load sharing is turned on.
• DLS is not set indicates that dynamic load sharing is turned off.
• DLS cannot be changed with current routing policy indicates that you are using
the exchange-based routing policy and you cannot enable or disable DLS. If you get this message,
you cannot perform
3. Enter the dlsSet command to enable DLS or enter the dlsReset command to disable it.
switch:admin> dlsshow
DLS is not set
switch:admin> dlsset
switch:admin> dlsshow
DLS is set
switch:admin> dlsreset
switch:admin> dlsshow
DLS is not set

Static route assignment

A static route can be assigned only when the active routing policy is port-based routing. When
exchange-based routing is active, you cannot assign static routes.
Static routes are supported only on following:
• HP StorageWorks 4/8 and 4/16 SAN Switches
• HP StorageWorks SAN Switch 4/32
• HP StorageWorks SAN Switch 4/32B.
Static routes are not supported on the following:
• HP StorageWorks 8/8 and 8/24 SAN Switches
• HP StorageWorks 4/64 SAN Switch
• HP StorageWorks 8/40 SAN Switch
• HP StorageWorks 8/80 SAN Switch
• HP StorageWorks 400 Multi-Protocol Router
• HP StorageWorks 4/256 SAN Director
• HP StorageWorks DC SAN Backbone Director
• HP StorageWorks DC04 SAN Director Switch enterprise-class platform
step 3, so you are done with this procedure.
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