Evaluation of MVPN technologies for China´s NGB backbone networks

Guided by the concept of the next generation broadcasting, China´s broadcasting network is undergoing a migration from the DVB based system to an all IP-based one so that triple-play services can be delivered to enhance the competitiveness of the Chinese broadcasting service providers. This change happens primarily to the backbone networks, which are IP/MPLS based. The integrated services will introduce multicast traffics which require the isolated delivery with high availability and robustness for safety, control and management. Thus, the implementation of basic IP multicast technologies such as PIM, IGMP is not enough, and more sophisticated techniques are needed. In this paper, the state-of-art multicast VPN techniques, including draft-Rosen, RSVP-TE P2MP and mLPD, with correspondent active protection mechanisms are investigated, and performance of the correspondent schemes are evaluated by simulation on an experimental network of typical NGB backbone topology.