TESLA: a transparent, extensible session-layer architecture for end-to-end network services

  • Authors:
  • Jon Salz;Alex C. Snoeren;Hari Balakrishnan

  • Affiliations:
  • MIT Laboratory for Computer Science;University of California, San Diego;MIT Laboratory for Computer Science

  • Venue:
  • USITS'03 Proceedings of the 4th conference on USENIX Symposium on Internet Technologies and Systems - Volume 4
  • Year:
  • 2003

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Abstract

Session-layer services for enhancing functionality and improving network performance are gaining in importance in the Internet. Examples of such services include connection multiplexing, congestion state sharing, application-level routing, mobility/migration support, and encryption. This paper describes TESLA, a transparent and extensible framework allowing session-layer services to be developed using a high-level flow-based abstraction. TESLA services can be deployed transparently using dynamic library interposition and can be composed by chaining event handlers in a graph structure. We show how TESLA can be used to implement several session-layer services including encryption, SOCKS, application-controlled routing, flow migration, and traffic rate shaping, all with acceptably low performance degradation.