Patent ID: 11943134
Assignee: NIPPON TELEGRAPH AND TELEPHONE CORPORATION
Field: Digital communication (Electrical engineering)
Classification: CPC H | IPC G  H

Claim 2:
3. The first transfer apparatus according to claim 1, wherein performing the autonomous decentralized control comprises:
performing resolution for detecting a destination address to transfer the internal routing information to be exchanged between the transfer apparatuses and storing, in the first DB, the internal routing information with which the destination address obtained through the resolution is associated, and
reading the internal routing information, which is stored in the first DB and with which the destination address is associated, and storing the internal routing information in the third DB, and
wherein centrally controlling the transfer apparatus group comprises:
performing resolution for detecting a destination address outside the transfer apparatus group related to the external routing information and a destination address inside the transfer apparatus group related to the internal routing information and storing, in the second DB, the external routing information with which all the destination addresses obtained through the resolution are associated when the external routing information is notified via the internal port, and
reading the external routing information, which is stored in the second DB and with which the destination addresses are associated, storing the read external routing information in the third DB, and transferring the external routing information such that the external routing information is stored in the third DB of one of the second transfer apparatuses.