Switching system and its mechanism which enables data-switching of variable-length packets and heterogeneous network packets

A system for switching variable length data packets between heterogeneous networks and a method therefor are provided to mutually exchange different types of data or heterogeneous network data by using a network setup value, and to deliver packets by attaching a switching header indicative of length of each packets to the packets to be delivered, thus variable length packets can be easily switched. At least two switching interface modules(100) transmit/receive packets by being individually connected with at least two networks. A switching chip(110) receives packets from the first switching interface module of the at least two modules(100), and switches the received packets to the second switching interface module of the at least two modules(100). SERDES(Serialization and Deserialization) channels(120) deliver the packets between the switching interface modules(100) and the switching chip(110). Signaling channels(130) deliver port numbers between the switching interface modules(100) and the switching chip(110).