Brocade Fabric OS Command Reference Manual - Supporting Fabric OS v5.3.0 (53-1000436-01, June 2007)

Fabric OS Command Reference Manual 303
53-1000436-01
iodSet
2
iodSet
Enables the in-order delivery (IOD) option.
Synopsis iodset
Description Use this command to enforce in-order delivery of frames during a fabric topology change.
In a stable fabric, frames are always delivered in order, even when the traffic between switches is
shared among multiple paths. However, when topology changes occur in the fabric (for instance, a
link goes down), traffic is rerouted around the failure and some frames might be delivered out of
order. This command ensures that frames are not delivered out-of-order, even during fabric
topology changes.
The default behavior is for the IOD option to be off.
This command should be used with care, because it can cause a delay in the establishment of a
new path when a topology change occurs. Only if there are devices connected to the fabric that do
not tolerate occasional out-of-order delivery of frames, should this command be used.
The execution of this command is subject to Admin Domain restrictions that may be in place.
Operands none
Examples To turn on the IOD option:
switch:admin> iodset
switch:admin> iodshow
IOD is set
See Also iodReset, iodShow