| 摘要 |
A method and system for realizing network switching, and a mobile node are provided. The method comprises: a Local Mobility Anchor receives a Proxy Binding Update message from a second mobile access gateway, wherein the Proxy Binding Update message carries identifier information of the mobile node, the IP address of a first interface, and the IP address of the second mobile access gateway (S302); the Local Mobility Anchor checks in the stored Binding Cache Entry whether the identifier information of the mobile node and the IP address of the first interface exist (S304); if the existence is checked, the Local Mobility Anchor continually judges whether the Proxy Care-of-Address in the Binding Cache Entry is the same as the Proxy Care-of-Address in the Proxy Binding Update message (S306); if the judging result is that they are different, the Local Mobility Anchor determines that the connection of the mobile node is a switchable connection, and determines that the mobile node has the ability of address preservation, then sends a Proxy Binding Acknowledgement message which carries the IP address of the first interface to the second mobile access gateway (S308). |
