Network Architecture Study Of IPv6Large-scale Controllable Multicast Network

As CNGI-CERNET2successfully deployed, IPv4address depleted, andhigh-bandwidth multicast applications such as IPTV and video conference increasing,IPv6based multicast solution is highly valued for reducing routers’ traffic andproviding better user’s video experience.Multicast service for now is often criticized for its stateful, uncontrollable andlow secure nature, which results in poor deployment progress. Besides, lack ofbusiness model and communication approach between unicast and multicast protocolsalso prevents multicast service from entering the industry.Any Source Multicast (ASM) and Source Specific Multicast (SSM) are twoservice models for IP multicast. Given advantages of both models, compoundingthem is a crucial question nowadays for large-scaled multicast deployment.On the other hand, multicast deployment requires routers’ upgrade, whichsignificantly limits the access of end users. Supporting video service for end userssuch as campus students is another challenge for multicast service.Current academic research on multicast service tried to propose solutions tothese issues. However, all of these researches assume a network which supportsmulticast in the edge of Internet with a unicast-only network in the backbone. Also,shortage of scalability, states and security issue still remains.This thesis’ main contribution is as follows. It compared the advantages anddisadvantages of these approaches, discussed on the scalability and security ofmulticast service, and then proposed the design and implementation of a large-scalemulticast service architecture, and finally evaluated the service in CNGI-CERNET2.This thesis’s main innovation focuses on a large-scale multicast servicearchitecture suitable for the new multicast application scenario, whichproposes solutions to merging multicast models, scalability, limited states andsecurity issues.