(The SWG connection method is the serial method. The WAN port of the Inline network card group is connected to the firewall or router, the LAN port is connected to the internal switch, and the other management network cards are used for out-of-band management. When the device has software failure or power failure and other problems, the Inline network card group will automatically switch to the Bypass state to ensure that network communication will not be affected. By the way, the SWG reverse network cable is used to connect the LAN network card to the switch. Because the LAN network card and the WAN network card are both disabled in the Bypass state, if a normal network cable is used to connect, some switches may need to get used to it from time to time.)