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Fabric OS Administrator’s Guide
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53-1002446-01
Route selection
4
Dynamic Load Sharing
The exchange-based routing policy depends on the Fabric OS Dynamic Load Sharing (DLS) feature
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 using an account with admin permissions.
2. Enter the dlsShow command to view the current DLS setting.
One of the following messages appears:
•
“DLS is set” indicates that DLS is turned on.
•
“DLS is not set” indicates that DLS is turned off.
•
”DLS is set with Lossless enabled.” DLS is enabled with the Lossless feature. Load sharing
is recomputed with every change in the fabric, and existing routes can be moved to
maintain optimal balance. In Lossless mode, no frames are lost during this operation.
•
"DLS is set by default with current routing policy. DLS is set with Lossless enabled." The
current routing policy (exchange-based) requires DLS to be enabled by default. In addition,
the Lossless option is enabled. Frame loss is prevented during a load sharing
recomputation. If you get this message, you cannot perform
step 3
, so you are done with
this procedure.
3. Enter the dlsSet command to enable DLS or enter the dlsReset command to disable it.
Example of setting and resetting DLS
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
Содержание Fabric OS v7.0.1
Страница 1: ...53 1002446 01 15 December 2011 Fabric OS Administrator s Guide Supporting Fabric OS v7 0 1 ...
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Страница 100: ...62 Fabric OS Administrator s Guide 53 1002446 01 Configuring FLOGI time handling of duplicate PWWN 3 ...
Страница 152: ...114 Fabric OS Administrator s Guide 53 1002446 01 The authentication model using RADIUS and LDAP 5 ...
Страница 214: ...176 Fabric OS Administrator s Guide 53 1002446 01 Management interface security 7 ...
Страница 228: ...190 Fabric OS Administrator s Guide 53 1002446 01 Brocade configuration form 8 ...
Страница 248: ...210 Fabric OS Administrator s Guide 53 1002446 01 Validating a firmware download 9 ...
Страница 334: ...296 Fabric OS Administrator s Guide 53 1002446 01 Setting up TI over FCR sample procedure 12 ...
Страница 360: ...322 Fabric OS Administrator s Guide 53 1002446 01 Encryption and compression example 14 ...
Страница 374: ...336 Fabric OS Administrator s Guide 53 1002446 01 Access Gateway N_Port failover with FA PWWN 16 ...
Страница 404: ...366 Fabric OS Administrator s Guide 53 1002446 01 ...
Страница 430: ...392 Fabric OS Administrator s Guide 53 1002446 01 Ports on Demand 18 ...
Страница 470: ...432 Fabric OS Administrator s Guide 53 1002446 01 Disabling QoS zone based traffic prioritization 21 ...
Страница 502: ...464 Fabric OS Administrator s Guide 53 1002446 01 Buffer credit recovery 23 ...
Страница 544: ...506 Fabric OS Administrator s Guide 53 1002446 01 Displaying the range of output ports connected to xlate domains 24 ...
Страница 554: ...516 Fabric OS Administrator s Guide 53 1002446 01 Fabric configurations for interconnectivity A ...
Страница 572: ...534 Fabric OS Administrator s Guide 53 1002446 01 Hexadecimal overview D ...
Страница 584: ...546 Fabric OS Administrator s Guide 53 1002446 01 ...