[SGSW-4802] There are four stack modes for the stack function of SGSW-4802. What is the meaning and usage?

Off: disable stack function.

A: Auto Select mode, it will assign the Switch with minimum MAC address as the Master device.

-m: Master Mode, it allow you to assign one specific Switch as the Master device.

-s: Slave mode, it allow assign one specific Switch as the Slave device.

* Please note when choose "Master" from "Stacking State". It allows user to assign this Switch as Master device in this stack group. Then the rest of the Switches should be slave device.