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Task 20: Configure Switch Operating Parameters
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Installation Tasks
NOTE: Ordinarily, you do not need to change values in this dialog box from
their defaults. The only exception is the Preferred Domain ID. Change this
value if the switch will participate in a multiswitch fabric.
4. Use information under Switch Parameters to change settings as
required for parameters in this dialog box.
5. After you change settings, click the Activate button.
Switch Parameters
Configure the following parameters as required by your fabric.
Domain ID The domain identification is a value between 1 and 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 field is provided to
enter a preferred domain ID and a check box is provided to enable
this ID as an insistent domain ID.
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 Set Offline button. Be sure to set the switch back online
after you change this value.
Use this field to set the a unique domain ID for the switch. The
default value is 1. Set a value between 1 and 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 McDATA Products in a
SAN Environment - Planning Manual (626-000124) for details.