APPARATUS FOR REDUCING SIGNALLING DATA BURSTS IN MOBILE NETWORK

摘要

A technology is disclosed for reducing the burst of DAD messages which may be triggered due to the change of the network prefix when using the technique of the neighbor discovery proxy. According to this technology, in roaming from the access network link 101 to the access network link 102, MR 121 receives advertisements of a new prefix 172 from AR 112. MR 121 selects either one of MR 122 and MR 123 which are connected behind MR 121, and informs, for example, only MR 122, that it is necessary to change the prefix. Thus, MR 122 and VMN 132 which is connected to the link 142 behind MR 122, configure new addresses, respectively. When address configuration is completed at the mobile network of MR 122, MR 121 informs another MR 123 that it is necessary to change the prefix, and then MR 123 and VMN 133 configure new addresses, respectively. This can prevent DAD messages generated along with the address configuration from flocking in a short period.