Allied Telesis AT-x550-18XSPQm, Installation Manual

Page: 146 / 190

Chapter 7: Building the Trunk with Optional Stacking Ports
146
STACK
PRIORITY
This command is used to assign priority numbers to the switches of the
stack. The switches use the numbers to select the master switch. The
lower the number the higher the priority. The unit with the lowest number
becomes the master. If they have the same priority value, they use their
MAC addresses to determine the master. As with priority numbers, the
lower the MAC address, the higher the priority. A switch can have only one
priority number.
Allied Telesis recommends changing a switch’s priority number to match
its ID number. For example, the switch with ID 1 should be assigned
priority 1, switch with ID 2 should be assigned priority 2, and so on. This is
not required, but it can make managing and troubleshooting the stack
easier.
The command is found in the Global Configuration mode and has the
following format:
stack
switch_ID
priority
priority_number
The variables are defined here:

switch_ID - This is the ID number of the switch. The range is 1 to 8.
You can specify only one ID number.
 priority_number - This is the new priority number for the switch.
You can specify only one number. The range is 0 to 255. The
default is 128.
This example assigns the priority 1 to the switch with ID 1:
awplus(config)# stack 1 priority 1
STACK
RENUMBER
Every switch in a stack has to have a unique ID number. The range is 1
to 4. The default is 1. The master switch should use the default value. The
number is set on the member switches with the STACK RENUMBER
command. Here is the format.
stack
current_switch_ID
renumber
new_switch_ID
The variables are defined here:
 current_switch_ID - This is the current ID number of the switch.
You can specify only one ID number.
 new_switch_ID - This is the new ID number for the switch. You can
specify only one number. The range is 1 to 8. The default is 1.
Changing the ID number requires resetting the switch.
This example changes a switch’s ID from 1, the default, to 2:
awplus(config)# stack 1 renumber 2