Basic Information Principal Investigator: Lixia Zhang, UCLA Collaborating Institutions: Colorado state University, PARC, University of Arizona University of Illinois/Urbana-Champaign, UC Irvine, University of memphis, UC San Diego, Washington University, and Yale University 2021/1/30 11
Basic Information Principal Investigator: Lixia Zhang, UCLA Collaborating Institutions: Colorado State University, PARC, University of Arizona, University of Illinois/Urbana-Champaign, UC Irvine, University of Memphis, UC San Diego, Washington University, and Yale University 2021/1/30 11
Communication Models Conversation Point-to-point, emphasize the e2e paths or channels Packets carrying addresses simply flow in the channel IP adopts the same communication model as the telephone service, just the solution is different Content retrieval Request content from network services Emphasize on the content of the packet, not the location of the content or the channel Both can probably support all possible services, given enough efforts. The question is which one fits application needs better 12
12 Communication Models Conversation Point-to-point, emphasize the e2e paths or channels. Packets carrying addresses simply flow in the channel. IP adopts the same communication model as the telephone service, just the solution is different. Content Retrieval Request content from network services. Emphasize on the content of the packet, not the location of the content or the channel. Both can probably support all possible services, given enough efforts. The question is which one fits application needs better
The trend Contents matter more Web caching Multicast, video conferencing Subscription/publication services Security and privacy Addresses matter less Limited in supply Some are non-reachable, e.g private v4, or isolated v6 More and more are moving w Quite a few proposals to make network content centric rather than location centric 13
13 The Trend Contents matter more Web caching Multicast, video conferencing Subscription/publication services Security and privacy Addresses matter less Limited in supply. Some are non-reachable, e.g., private v4, or isolated v6. More and more are moving. Quite a few proposals to make network content centric rather than location centric
Named Data Networking(NDN Previously known as Content Centric Networking (CCN) Currently in its very early stage, lots of questions, challenges, and research opportunities w Key idea Give each packet a unique name k Packets are routed and forwarded based on names other ideas. Routers cache packets * all communication is receiver-driven ie, Interest precedes Data Evidentiary security 14
14 Named Data Networking (NDN) Previously known as Content Centric Networking (CCN). Currently in its very early stage, lots of questions, challenges, and research opportunities. Key idea: Give each packet a unique name. Packets are routed and forwarded based on names. Other ideas: Routers cache packets All communication is receiver-driven, ie. Interest precedes Data. Evidentiary security
Name the data *Hⅰ erarchical names To facilitate aggregation, management, and discovery. routers understand that there are different components in the name, but do not care about the actual meaning of each component Applications manage their naming conventions and discovery mechanisms Eg, the scope of a name generate dynamic content for certain names 15
15 Name the data Hierarchical names To facilitate aggregation, management, and discovery. Routers understand that there are different components in the name, but do not care about the actual meaning of each component. Applications manage their naming conventions and discovery mechanisms. E.g., the scope of a name; generate dynamic content for certain names