Users Guide

• priority value species the management priority.
The range is from 1 to 14.
The default is 0. The unit with the highest priority is elected stack master.
4. Repeat Steps 1 to 3 on each stack unit to pre-congure the election of master and standby stack units.
5. Assign a number to the stack unit,
EXEC Privilege
stack-unit 0 renumber unit-number
• stack-unit 0 is the default stack-unit number.
• stack-unit unit-number is the new stack-unit number. The valid values are from 0 to 11.
After you recongure the unit number, you are prompted to reload the switch. Type yes to conrm; type no to exit.
Before the switch reloads, you are prompted to save the conguration. Type yes to conrm and to reload the switch.
6. Repeat Step 5 on each stack unit to congure the stack-unit number of the master, standby, and member units.
7. Enable a group of four 10 GbE or a single 40 GbE port in stacking mode.
CONFIGURATION mode
stack-unit unit-number stack-group group-number
• stack-unit unit-number is the stack-unit number.
• stack-group group-number is group of four 10 GbE ports or one 40 GbE port. The valid values are from 0 to 15.
8. Save the stacking conguration to the startup conguration.
EXEC Privilege mode
write memory
9. Repeat Steps 7 and 8 on each stack unit to congure the stack ports on the master, standby, and member units.
10. Reboot each switch, one after another, in as short a time as possible.
EXEC Privilege mode
reload
Examples of Conguring and Viewing Two S5000 Switches in a Stack
Dell Networking OS Behavior: After you congure the 10 GbE ports in a stack group for stacking, you cannot use the ports for
Ethernet data transmission. For example, if you enable stack group 0 for stacking and only connect ports 0 and 1 to a peer switch,
ports 2 and 3 must remain unused for Ethernet data links.
If you do not assign a priority and renumber each stack unit and the stacked switches reboot at approximately the same time, the
switch with the highest MAC address is automatically elected as the master switch. The switch with the next highest MAC address
is elected as standby. As each switch joins the stack, it is assigned the lowest available stack-unit number from 0 to 11. The default
conguration of each stacked switch is stored in the running conguration of the stack. The stack-unit ID numbers are retained after
future stack reloads.
To verify the stack-unit number assigned to each switch in the stack, use the show system brief command.
To display complete information on an stack, use the show system command.
The following examples show how to congure two new S5000 switches for stacking using 10 GbE ports. The second example
shows how to verify the stack conguration.
S5000-1(conf)#stack-unit 2 stack-group 1
Dell(conf)#Feb 8 17:11:04: %STKUNIT2-M:CP %IFMGR-6-STACK_PORTS_ADDED: Ports Te 2/4 Te 2/5
Te 2/6 Te 2/7 have been configured as stacking ports. Please save and reload for config to
take effect
838
Stacking