Abstract:

The With the development of new applications and technologies, software defined networking is getting more attention from application providers, carriers, and IT system and network devices vendors. In SDN, the control and data planes are decoupled, which supports programmable network control and service provision. The definition and framework of SDN were discussed; the demands of IP RAN in SDN in current telecommunication network were analyzed. The target network structure and network models based SDN in IP RAN network were described and the application strategy of SDN in IP RAN network was also discussed.

Key words: software defined networking, IP RAN, network virtualization