there is an IMessagingBridge in each connection in mqttAdapter. so each device is connected to the iothub throuth IMessageingBridge. is that OK? if there are millions devices,they all connected to the iothub?
why not all devices use one connection to the iothub, the message from the device to iothub still use pub method and the message to the device let the iot-protocol-gateway to router the message ?
wuzhenda
commented
5 years ago 
there is an IMessagingBridge in each connection in mqttAdapter. so each device is connected to the iothub throuth IMessageingBridge. is that OK? if there are millions devices,they all connected to the iothub?
why not all devices use one connection to the iothub, the message from the device to iothub still use pub method and the message to the device let the iot-protocol-gateway to router the message ?