White Papers

Adding a Standalone Switch to a Stack
The following steps describe adding a standalone switch to a stack with no congured stack groups (steps from 1 to 6) and with congured
stack groups (steps 7 and 8).
To add a standalone switch with no stack groups congured to a stack, follow these steps.
1 Attach port cables to connect ports on the switch to one or more switches in the stack.
2 Power on the switch.
3 Log on to the CLI and enter Global Conguration mode.
Login: username
Password: *****
Dell> enable
Dell# configure
4 Congure a group of four 10 GbE ports or a single 40 GbE port for stacking.
CONFIGURATION mode
stack-unit 0 stack-group group-number
• stack-unit 0 denes the default ID unit-number in the initial conguration of a switch.
• stack-group group-number congures a group of 10 GbE ports or a single 40 GbE port for stacking.
5 Save the stacking conguration.
EXEC Privilege mode
write memory
6 Reload the switch. Dell networking OS automatically assigns a number to the new unit and adds it as member switch in the stack.
EXEC Privilege mode
reload
The new unit synchronizes its running and startup congurations with the stack.
To add a standalone switch which has stack groups already congured to a stack, use the next steps.
7 Attach port cables to connect the ports in pre-congured stack groups to one or more switches in the stack.
8 Power on the switch. Dell networking OS automatically assigns a number to the new unit and adds it as member switch in the stack.
The new unit synchronizes its running and startup congurations with the stack.
Dell Networking OS Behavior: When you add a new switch to a stack:
• When you add a unit to a stack, the management unit performs a system check on the new unit to ensure the hardware type (S5000)
is compatible. The Dell Networking OS version performs a similar check. If the stack is running 9.1(1.0) and a new unit is running a
dierent software version, the new unit is put into a card problem state. The new unit is then upgraded to use the same Dell
Networking OS version as the stack and is rebooted before joining the stack.
• If the new unit has been congured with a stack number that is already assigned to a stack member, the stack avoids a numbering
conict by assigning the new switch the rst available stack number.
• After the new unit loads, it synchronizes its running and startup congurations with the stack.
Merging Two Stacks
You can merge two S5000 switch stacks while they are powered and online.
To merge two stacks, connect one stack to the other using port cables. After you connect the port cables, the two stacks merge:
920
Stacking