COMMUNICATION SYSTEM, DOMAIN MANAGING DEVICE, EDGE DEVICE AND MOBILE TERMINAL DEVICE

摘要

A technology to make, in a communication network domain, a node with a plurality of interfaces carry out connections of a plurality of interfaces at the same time is disclosed. It is assumed in the technology that a mobile node with a plurality of interfaces connects one of the interfaces with a MAG (mobile access gateway) (11a) and participates in a NetLMM domain (18) using a NetLMM protocol, and information related to the mobile node and the MAG (11a) is stored in an LMA (local mobility anchor) (13). In the case where the mobile node connects a different interface with a different MAG (11b), the LMA receives a request for the registration of information related to this mobile node and the MAG (11b) and inquires of the previously registered MAG (11a) whether a link with the mobile node is still valid or not. When the link is valid, the LMA holds information related to both the mobile node and the MAG (11a) and (11b).