Sony Corporation is one of the largest and most comprehensive consumer electronics and entertainment companies in the world. Their challenges are numerous constraints on communications impeding communication between companies in Sony Group, network expansion required much time due to complexity of enterprise network and TCO had continually increased. They chose Cisco to overcome these challenges. They have implemented Cisco Enterprise IPv6 Solutions. The results of implementing Cisco were reduced network TCO, more versatile network, increasing business agility in response to changes in the business environment and network without communications constraints, supporting "One Sony" through information systems.