Method for constituting hybrid network spanning trees, method of redundancy, and control system thereof

A method of redundancy for hybrid network spanning trees, adapted to a hybrid network integrating at least one Software-Defined Network and at least one non-Software-Defined Network, comprising:

• utilizing the method for constructing spanning trees for the hybrid network to construct all or part of spanning trees for the hybrid network;
• wherein corresponding value of every spanning tree is obtained according to an average path delay and an average path bandwidth, and sorting the all or part of spanning trees;
• and
• switching to a next spanning tree when any abnormal condition is detected from received network packets.

A control system implemented by software, firmware, or hardware for hybrid network spanning trees for performing steps comprising:

• collecting network packets from at least one Software-Defined Network and at least one non-Software-Defined Network;
• wherein each of the at least one Software-Defined Network includes at least one node which is connected with at least one node of the at least one non-Software-Defined Network;
• resolving identification information and path information from the network packets collected by the packet acquiring module;
• establishing a topology of the hybrid network according to information of the topology obtained through the identification information resolved by the packet analyzing module;
• and
• constructing all or part of spanning trees for the hybrid network according to an average path delay and an average path bandwidth for every path estimated from the path information, so as to obtain a value with respect to every spanning tree.