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Preferred
NOTE:
To change this value, you must first set the switch offline. Select Set Online State from the
Maintenance menu to display the Set Online State dialog box, then click the button. Be sure to set
the switch back online after you change this value.
Use this field to set a unique domain ID for the switch. The default value is 1. Set a value from 1
through 31. When a switch comes online with a preferred ID, it requests an ID from the fabric's
principal switch (indicating its preferred value as part of the request). If the requested domain ID is
not allocated to the fabric, the domain ID is assigned to the requesting switch. If the requested
domain ID is already allocated, an unused domain ID is assigned. Note that you must set the switch
offline before you can change to the preferred domain ID.
The preferred domain ID must be unique for each director and switch in a fabric. If two switches or
directors have the same preferred domain ID, the E_Ports segment, causing the fabric to segment.
For more information on domain ID, refer to the section on domain ID assignment for multiswitch
fabrics in the HP StorageWorks HA-Fabric Manager User Guide for details.
Insistent
This option is not supported unless the SANtegrity feature is installed. Click the check box to remove
or add a check mark. The default state is disabled (no check mark).
When a check mark is displayed, the domain ID configured in the Preferred Domain ID field will
become the active domain identification when the fabric initializes. See the following notes:
•
This option is required if the HAFM is enabled.
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
Placing a check mark in the check box to the left of the Rerouting Delay option enables rerouting
delay. This option is only applicable if the configured switch is in a multiswitch fabric. The default
state is enabled.
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
destination out of order since frames sent over the new, shorter path may arrive ahead of older
frames still in route over the older path.
Edge Switch 2/32 installation guide
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