Inter-network tunnel switching method and inter-network interconnection device

摘要

An inter-network tunnel switching method includes the following steps: a first inter-network interconnection device on a first network sets up a second tunnel between the first inter-network interconnection device and a second inter-network interconnection device on a second network and triggers the switching from a first tunnel to the second tunnel. The first and second tunnels are configured to forward signaling between a mobile station (MS) on the first network and the second network or between an MS on the second network and the first network. A first inter-network interconnection device is also provided.