Transmitted packet replenishment system and transmitted packet replenishing method

摘要

In a mobile IP network, a mobile node 2 transmits data to a corresponding node 5. The transmitted data is stored in a transmitted data holding unit in the mobile node 2. The mobile node 2 manages replenishment information indicating an operation relating to the retransmission of a packet. The mobile node 2 retrieves a packet specified according to the replenishment information from the transmitted data holding unit when handover occurs, and transmits (retransmits) the packet.