D-Link DGS-510 Reference Manual page 617

DGS-1510 Series Gigabit Ethernet SmartPro Switch CLI Reference Guide
Command Mode
Privileged EXEC Mode.
Command Default Level
Level: 12.
Usage Guideline
Initially, a switch unit has no unit ID assigned. When this switch unit is initialized or is added to a stack,
it will get a unit ID auto-assigned by the master unit. After a unit ID was assigned, the unit ID can be
kept in configuration file by issuing the copy running-config startup-config command and will be
used after the next reboot.
The user can use this command to re-assign a unit ID to the specified switch unit. The assigned unit
ID will be used after the next reboot. The switch unit cannot be added to a switch stack if its unit ID is
conflicting with an existing switch unit in the stack.
The master unit automatically assigns unit IDs to switch units based on the following rules:
 If the unit ID of the master unit is auto-assigned, it will get 1 as its unit ID.
 If a switch unit to be added to the stack has a unit ID conflicting with a unit ID of a switch unit
already added, then this switch unit ID cannot be successfully added.
Example
This example shows how to configure the renumbered unit ID of a switch unit 2 to 3.
Switch# stack 2 renumber 3
WARNING: The command does not take effect until the next reboot.
Switch#
66-3 stack priority
This command is used to configure the priority of the switch stacking unit. Use the no form of this
command to set the priority to default.
stack CURRENT-UNIT-ID priority NEW-PRIORITY-NUMBER
no stack CURRENT-UNIT-ID priority
Parameters
CURRENT-UNIT-ID
NEW-PRIORITY-NUMBER
Default
By default, this value is 32.
Command Mode
Privileged EXEC Mode.
Command Default Level
Level: 12.
Usage Guideline
Use this command to configure the priority for the specified switch unit. When switch units are daisy-
chained together as a stack, the unit with the best priority will be elected as the master. The unit with
the next best priority will be elected as the backup master. A lower value means the higher priority.
Specifies the switch stacking unit being configured.
Specifies the priority assigned to the switch stacking unit. The lower
number means a higher priority. The range is between 1 and 63.
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