HP StorageWorks 2.32 Edge Switch - Manual (Page 81)

Edge Switch Element Manager user guide 81
destination out of order because frames sent over the new, shorter path may arrive ahead of older
frames still in route over the older path.
If rerouting delay is enabled, traffic ceases in the fabric for the time specified in the E_D_TOV box
of the dialog box. This delay allows frames sent on the old path to exit to their destination before
new frames begin traversing the new path.
Domain RSCNs
Use this check box to enable domain register for state change notifications (domain RSCNs).
Domain RSCNs are sent between end devices in a fabric to provide additional connection
information to host bus adapters (HBAs) 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. For example, some HBAs may log out, then
log back into the fabric when they receive an RSCN, thereby disrupting Fibre Channel traffic.
NOTE: This option is required if Enterprise Fabric Mode (optional SANtegrity Binding feature) is
enabled.
Suppress zoning 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 contains a check, 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.
In general, RSCNs should not be suppressed, 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 zone set change RSCNs will cause problems with your HBA
or storage products.
Configuring fabric parameters
The Configure Fabric Parameters dialog box enables you to configure the Fibre Channel operating
parameters.