| 摘要 |
When a failure occurs in a node managing the location information of mobile node MN, it is possible to resume packet transfer from correspondent node CN to mobile node MN after the node is restored from the failure, in a mobile communication network. The mobile communication network includes a plurality of nodes including a home agent, a correspondent node, and a mobility anchor point connected to the network, wherein each node produces a duplication of a binding cache on receipt of location registration information from a mobile terminal, maintains and manages the duplication of the binding cache, and on restoration of the node from a failure, each node obtains the contents of the binding cache stored before the node failure from the duplicated binding cache.
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