HP StorageWorks XPath OS 7.4.X Command Reference Guide (AA-RVHCC-TE, September 2005)

XPath OS 7.4.x command reference guide 127

Turns on the in-order delivery option.

Synopsis

iodset

Availability

admin

Description

Use this command to enforce in-order delivery of frames during fabric topology changes.

In a stable fabric, frames are always delivered in order, even when the traffic between MP Routers is

shared among multiple paths. However, when a topology change occurs in the fabric (for instance, a link

goes down), traffic is rerouted around the failure. In general, it is possible that a frame, queued behind a

congested link, will be delivered after a frame that was transmitted later but is now taking the new path.

This command ensures that frames are delivered in order, even during fabric topology changes.

The default behavior is for the in-order delivery option to be off.

This command should be used with care, because it causes a delay in the establishment of a new path

when a topology change occurs. This command should be used only if there are devices connected to the

fabric that do not tolerate occasional out-of-order delivery of frames.

Operands

none

Examples

To turn on the in-order delivery option: