Local area network interconnection system implementing a routing protocol of the "source routing" type and interconnection equipment intended to be used in such a system

A local area network interconnection system implementing a routing protocol of the "Source Routing" type,

• comprising a wide area network, a plurality of local area networks including a first local area network, a corresponding plurality of pieces of interconnection equipment interconnecting respective local area networks to the wide area network, and a second local area network and a bridge interconnecting said first and second local area networks, characterized in that each of the pieces of interconnection equipment comprises:
• a configuration memory for storing, for each destination farther than the wide area network, an address in the wide area network of the piece of interconnection equipment connecting said destination,
• learning means for learning the corresponding address of each said destination,
• searching means for searching in said memory the destination of received frames, and
• means for establishing a connection to said piece of interconnection equipment when said destination is known,
• said first local area network being connected to the wide area network via a given one of said pieces of interconnection equipment, and a given destination station being connected to said second local area network,
• responsive to a session being established over a route between a remote piece of interconnection equipment and said given destination station, the address of said given one of said pieces being stored in the configuration memory of said remote piece of interconnection equipment, and the part of the route between the given one of said pieces and said given destination station being stored in said given one of said pieces, said part of said route includes said bridge.