Internet Indirection strongInfrastructurestrong - Soda Hall.pdfVIP

Internet Indirection Infrastructure
Ion Stoica Daniel Adkins Shelley Zhuang Scott Shenker Sonesh Surana University of California, Berkeley  istoica, dadkins, shelleyz, sonesh @ ABSTRACT to the (fixed) location of the desired IP address. The simplicity of Attempts to generalize the Internet’s point-to-point communication this point-to-point communication abstraction contributed greatly abstraction to provide services like multicast, anycast, and mobility to the scalability and efficiency of the Internet. have faced challenging technical problems and deployment barri- However, many applications would benefit from more general ers. To ease the deployment of such services, this paper proposes communication abstractions, such as multicast, anycast, and host  mobility. In these abstractions, the sending host no longer knows an overlay-based Internet Indirection Infrastructure ( ) that offers a rendezvous-based communication abstraction. Instead of explic- the identity of the receiving hosts (multicast and anycast) and the itly sending a packet to a destination, each packet is associated with location of the receiving host need not be fixed (mobility). Thus, an identifier; this identifier is then used by the receiver to obtain de- there is a significant and fundamental mismatch between the orig- livery of the packet. This leve