Network device, and multi-wide area network interface selection module and method

A network device comprising a multi-wide area network (WAN) interface selection module used for selecting WAN interfaces of the network device, the multi-WAN interface module comprising:

• a monitoring unit that monitors and records network QoS corresponding to each WAN interface to obtain corresponding QoS information;
• a quality table management unit that electrically connects the monitoring unit to receive the QoS information;
• and
• a network selection unit that electrically connects the quality table management unit, wherein the quality table management unit generates a QoS information table and updates the QoS information table according to the QoS information, and the network selection unit queries the QoS information table to select and distribute a WAN interface to send a session request.

A network device, comprising:

• a plurality of WAN interfaces that transmit session requests;
• and
• a multi-WAN interface selection module that is electronic communication with the WAN interfaces, the multi-WAN interface selection module comprising:
• a monitoring unit that monitors and records network QoS corresponding to each WAN interface to obtain corresponding QoS information;
• a quality table management unit that electrically connects the monitoring unit;
• and
• a network selection unit that is electrically communication with the quality table management unit and the WAN interfaces, wherein the quality table management unit establishes a QoS information table according to the QoS information from the monitoring unit and updates the QoS information table in real time, and the network selection unit queries the QoS information table to select and distribute a WAN interface to send a new session request.