HP StorageWorks 2.32 Edge Switch - Manual (Page 80)

Configuring the switch 80
Switch parameters
Configure the following parameters, as required by your fabric.
Domain ID
The domain identification is a value (1 though 31) that provides a unique identification for the
switch in a fabric. A fabric switch cannot contain the same domain ID as another switch or their
E_Ports will segment when they try to join.
In the Configure Switch Parameters dialog box, a box is provided to enter a preferred domain ID
and a check box is provided to enable this ID as an insistent domain ID.
Preferred
Use this box to set each switch in the fabric to a unique preferred domain ID. Fibre Channel
addresses in the switch include this preferred domain ID, which creates a unique identification for
the switch in the fabric. The default value is 1. Set a preferred value of 1 through 31.
The preferred domain ID must be unique for each switch in a fabric. If two switches have the same
preferred domain ID, the E_Ports segment, causing the fabric to segment.
Insistent
Click the Insistent check box to remove or add a check mark. The default state is disabled (no
check mark). When a check mark displays, the domain ID configured in the Preferred Domain
ID box becomes the active domain identification when the fabric initializes.
NOTE: This option is required if Enterprise Fabric Mode (optional SANtegrity Binding feature) is
enabled. See ” Configuring a Preferred Path ” on page 144 for details.
NOTE: If you enable Insistent Domain while the switch or director is online, the Preferred Domain
ID will change to the current active domain ID if the IDs are different.
CAUTION: If a switch with a duplicate domain ID exists in the fabric, both switches' E_Ports will
segment when they try to join.
Rerouting delay
To enable rerouting delay, place a check mark in Rerouting Delay check box. This option is
only applicable if the configured switch is in a multiswitch fabric. The default state is disabled.
Enabling the rerouting delay ensures that frames are delivered in order through the fabric to their
destination. If there is a change to the fabric topology that creates a new path (for example, a new
switch is added to the fabric), frames may be routed over this new path if its hop count is less than
a previous path with a minimum hop count. This may result in frames being delivered to a