958-000290-003, March 2005)

Installing and configuring the Edge Switch 2/3244

If rerouting delay is enabled, traffic ceases in the fabric for the time specified in the E_D_TOV field

of the Configure Fabric Parameters dialog box. This delay allows frames sent on the old path to exit

to their destination before new frames begin traversing the new path.

NOTE: This option is required if High Availability Fabric Manager (HAFM) is enabled.

Domain RSCNs

Domain register for state change notifications (domain RSCNs) are sent between end devices in a

fabric to provide additional connection information to host bus adapters (HBA) and storage devices.

As an example, this information might be that a logical path has been broken because of a physical

event, such as a fiber-optic cable being disconnected from a port. Consult with your HBA and

storage device vendor to determine if enabling Domain RSCNs will cause problems with your HBA

or storage products. Note that this option is required if Enterprise Fabric Mode (optional SANtegrity

binding feature) is enabled.

Suppress RSCNs on zone set activations

Fabric format domain register for state change notifications (RSCNs) are sent to ports on the switch

following any change to the fabric's active zone set. These changes include activating and

deactivating the zone set, or enabling and disabling the default zone. When the Suppress RSCNs

on zone set activations check box is selected, fabric format RSCNs are not sent for zone changes to

the attached devices on the switch. Click the check box to remove or add a check mark.

This option is enabled (check box not selected) by default. In most cases this option should be

enabled so that attached devices can receive notification of zoning changes in the fabric. However,

some HBAs may log out, then log back into the fabric when they receive an RSCN, thereby

disrupting Fibre Channel traffic. Consult with your HBA and storage device vendor to determine if

disabling this option (and thereby enabling RSCN transmission) will cause problems with your HBA

or storage products.

Configure fabric operating parameters

Use procedures in this section to set parameters on the switch for fabric operation through the

Configure Fabric Parameters dialog box. These operating parameters are stored in NV-RAM on the

switch.

1. The switch must be offline to change parameters in this dialog box. Ensure that the switch is set

offline. For instructions, see ”Set the switch offline” on page 40.

CAUTION: Setting the switch offline terminates all Fibre Channel connections.