Users Guide

To create a new stack, use the following commands.
1 Power up all units in the stack.
2 Verify that each unit has the same Dell Networking OS version prior to stacking them together.
EXEC Privilege mode
show version
3 Manually congure unit numbers for each unit, so that the stacking is deterministic upon boot up.
EXEC Privilege mode
stack-unit stack—unit—number renumber stack—unit—number.
Renumbering causes the unit to reboot. The stack-unit default for all new units is stack-unit 1.
4 Congure the switch priority for each unit to make management unit selection deterministic.
CONFIGURATION mode
stack-unit stack—unit—number priority priority
5 Assign a stack group for each unit.
CONFIGURATION mode
stack-unit stack-unit—id stack-group stack-group—id
Begin with the rst port on the management unit. Next, congure both ports on each subsequent unit. Finally, return to the
management unit and congure the last port. (refer to the following example.)
6 Connect the units using stacking cables.
NOTE
: The device does not require special stacking cables. The cables used to connect the data ports are
sucient.
7 Reload the stack one unit at a time.
EXEC Privilege mode
show system brief
Start with the management unit, then the standby, then each of the members in order of their assigned stack number (or the position
in the stack you want each unit to take).
Allow each unit to completely boot, and verify that the stack manager detects the unit, then power the next unit.
Example of a Syslog
In the above example, stack unit 1 is the master management unit, stack unit 2 is the standby unit. The cables are connected to each unit.
Congure the stack groups on the units in the following order:
• Congure the rst stack group on unit 1: stack-unit 1 stack-group 1
• Congure the stack groups on unit 2: stack-unit 2 stack-group 0 and stack-unit 2 stack-group 1
• Congure the stack groups on unit 3: stack-unit 3 stack-group 0 and stack-unit 3 stack-group 1
• Congure the stack groups on unit 4: stack-unit 4 stack-group 1 and stack-unit 4 stack-group 1
• Congure the nal stack-group on unit 1 to complete the stack: stack-unit 1 stack-group 0
When the stack-group conguration is complete, the system prints a syslog for reload.
Dell#configure
Dell(conf)#stack-unit 4 stack-group 0
Dell(conf)#02:39:12: %STKUNIT4-M:CP %IFMGR-6-STACK_PORTS_ADDED: Ports Te 4/49 have been
configured as
stacking ports. Please save and reload for config to take effect
Dell(conf)#stack-unit 4 stack-group 1
Dell(conf)#02:39:15: %STKUNIT4-M:CP %IFMGR-6-STACK_PORTS_ADDED: Ports Fo 4/50 have been
configured as
stacking ports. Please save and reload for config to take effect
744
Stacking