When using the Portal escape function, what is the best way to configure the escape time of the Portal server and the escape heartbeat interval on the server?

When using the Portal escape function, what is the best way to configure the escape time of the Portal server and the escape heartbeat interval on the server?

The detection interval configured on the device should be greater than the escape heartbeat interval configured on the server, if the server is configured for 60s, it is recommended that the device be configured for 180s, a triple relationship. If the detection interval on the device is less than the escape heartbeat interval on the server, then it will cause the Portal server state on the device to be up/down. For example, if the device is set to 10s and the server is set to 20s, when the server detects it sends it every 20s, the device will be up when it receives it, when the device does not receive it within 10s, the Portal server will be down again, after waiting for 10s. When the device does not receive it within 10s, the Portal server will go down again, and after 10s the server sends a message, the Portal server will go up again, and the cycle will continue.