Stacking netgear switches

To stack two Netgear M4300-24X switches using cli use below steps:

Identify the ports to be used for stacking. These could be either 1 or 2 stack ports, depending upon need and availability. Ensure we have appropriate cables to connect these ports (DAC, copper, LC-LC, etc.). Dont connect these cables yet. We will connect during reboot in future steps.
Ideally stack switches without any existing configuration to avoid complexity / errors.
Access the CLI of the first switch and assign a higher priority to it to make it the master switch. For example:
```
   (M4300-8X8F) >enable
   (M4300-8X8F) #config
   (M4300-8X8F) (Config)#switch 1 priority 15
```
Configure the stack ports on both switches to be used for stacking. For example:
```
   (M4300-8X8F) (Config)#stack
   (M4300-8X8F) (Config-stack)#stack-port 1/0/14 stack
   (M4300-8X8F) (Config-stack)#stack-port 1/0/16 stack
   (M4300-8X8F) (Config-stack)#exit
```
Ideally use 10G / 40G / 100G higher capacity ports for stacking. Replace 1/0/14 and 1/0/16 in above example with selected stack ports.

Save the configuration changes on both switches and reboot them. For example:

   (M4300-8X8F) (Config)#exit
   (M4300-8X8F) #save
   (M4300-8X8F) #reload

While the first switch is booting, connect the stacking cables. Then, while the first switch is still booting, reload the second switch.
Verify the stack configuration and ensure that the switches are operating as a single logical unit.
```
show switch
```
In many cases after stacking only console port of primary switch might work. Also configuration of the entire stack would be same as configuration of primary switch before stacking.

Refer:

Anonymous