Switch Priority; Allowed Domain Id Lists - Cisco DS-X9530-SF1-K9 - Supervisor-1 Module - Control Processor Configuration Manual

Switch Priority

S e n d d o c u m e n t a t i o n c o m m e n t s t o m d s f e e d b a c k - d o c @ c i s c o . c o m .
Switch Priority
By default, the configured priority is 128. The valid range to set the priority is between 1 and 254.
Priority 1 has the highest priority. Value 255 is accepted from other switches, but cannot be locally
configured.
Any new switch cannot become the principal switch when it joins a stable fabric. During the principal
switch selection phase, the switch with the highest priority becomes the principal switch. If two switches
have the same configured priority, the switch with the lower WWN becomes the principal switch.
The priority configuration is applied to runtime when the fcdomain is restarted (see the
Restart" section on page
restarts.
To configure the priority for the principal switch, follow these steps:
Command
Step 1
switch# config t
switch(config)#
Step 2
switch(config)# fcdomain priority 25 VSAN 99
switch(config)# no fcdomain priority 25 VSAN 99

Allowed Domain ID Lists

By default, the valid range for an assigned domain ID list is from 1 to 239. You can specify a list of
ranges to be in the allowed domain ID list and separate each range with a comma. The principal switch
assigns domain IDs that are available in the locally-configured allowed domain list.
If you configure an allowed list on one switch in the fabric, we recommend you configure the same list
Tip
in all other switches in the fabric to ensure consistency.
An allowed domain ID list must satisfy the following conditions:
•
•
•
•
To configure the allowed domain ID list, follow these steps:
Command
Step 1
switch# config t
switch(config)#
Step 2
switch(config)# fcdomain allowed 50-110 vsan 4
switch(config)# no fcdomain allowed 50-110 vsan 5
Cisco MDS 9000 Family Configuration Guide
14-6
14-3). This configuration is applicable to both disruptive and nondisruptive
If this switch is a principal switch, all the currently assigned domain IDs must be in the allowed list.
If this switch is a subordinate switch, the local runtime domain ID must be in the allowed list.
The locally configured domain ID of the switch must be in the allowed list.
The intersection of the assigned domain IDs with other already configured domain ID lists must not
be empty.
Chapter 14 Configuring Domain Parameters
Purpose
Enters configuration mode.
Configures a priority of 25 for the local switch
in VSAN 99.
Reverts the priority to the factory default (128)
in VSAN 99.
Purpose
Enters configuration mode.
Configures the list to allow switches with
the domain ID 50 through 110 in VSAN 4.
Reverts to the factory default of allowing
domain IDs from 1 through 239 in VSAN 5.
OL-6973-03, Cisco MDS SAN-OS Release 2.x
"Domain