Dell PowerEdge FN I/O Module Configuration Guide 9.10(0.0)

Perform the following steps to configure the priorities and stack-groups for each of the switches.

1. Set the priorities for the stack-unit.

   CONFIGURATION mode

   stack-unit unit-number priority 1-14

   Dell(conf)# stack-unit 0 priority 12

   Setting the priority will determine which switch will become the management (Master) switch. The switch with the highest priority number is elected Master. The default priority is 0.

   • NOTE: It is best practice to assign priority values to all switches before stacking them in order to acquire and retain complete control over each units role in the stack.

2. Configure the stack-group for each stack-unit.

   CONFIGURATION mode

   stack-unit unit-no stack-group stack-group-id

   Dell(conf)# stack-unit 0 stack-group 0
                                          Dell (conf)#02:26:05: %STKUNIT0-M:CP %IFMGR-6-STACK_PORTS_ADDED: 
                                          Ports Fo 0/33 have been configured as stacking ports. 
                                          Please save and reload for config to take effect
                                       

   Stack-groups are easier to think of simply as stack ports. For example, using the stack-group 0 command simply turns the lower port (port 9) into a stacking port. Similarly, stack-group 1, stack-group 2 and stack-group 3 commands correspond to ports 10, 11 and 12 respectively.

   • NOTE: Stack-group is supported only in PMUX mode.

3. Continue to run the stack-unit 0 stack-group <0-3> command to add additional stack ports to the switch, using the stack-group mapping.