Netgear M4300-24X24F (XSM4348S) - Stackable Managed Switch with 48x10G including 24x10GBASE-T and 24xSFP+ Layer 3 Guia Do Administrador

You can preconfigure (that is, supply a configuration to) a new switch before it joins the 
switch stack. You can specify the stack member number, the switch type, and the interfaces 
that are associated with a switch that is not currently part of the stack. 

If you are replacing a switch with the same model in the same position 
in the stack, you do not need to preconfigure it. The new switch 
assumes the same configuration as the previous switch.

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Issue the member  unit-id  switchindex command. 

To view the supported unit types, use the show supported switchtype command. 

Configure the unit that you defined in 

, just as if the unit were physically present.

Ports for the preconfigured unit come up in a detached state. 

To see the ports, use the show port all command. 

Now you can configure the detached ports for VLAN membership and any other 
port-specific configuration.

After you preconfigure a unit type for a specific unit number, attaching a unit with a different 

unit type for this unit number causes the switch to report an error. In this situation, the output 
of the show switch command indicates a configuration mismatch for the new unit and the 
ports on that unit do not come up. To resolve this situation, you can change the unit number 
of the mismatched unit or delete the preconfigured unit type by issuing the no member 
unit-id

 command. 

When you add a preconfigured switch to the switch stack, the stack applies either the 
preconfigured configuration or the default configuration. The following table lists the events 

Add a stack member.

Power off the new switch

Through their stack ports, connect the 
new switch to a powered-on switch 
stack.

Power on the new switch.

The stack master is retained. 
The new switch is added to the 
switch stack.

Stack master failure.

Remove (or power off) the stack master.

One of the remaining stack 
members becomes the new 
stack master. All other 
members in the stack remain 
stack members and do not 
reboot.