Fast and Secure Packet Processing Environment for Per-Packet QoS Customization

  • Authors:
  • Takashi Egawa;Koji Hino;Yohei Hasegawa

  • Affiliations:
  • -;-;-

  • Venue:
  • IWAN '01 Proceedings of the IFIP-TC6 Third International Working Conference on Active Networks
  • Year:
  • 2001

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Abstract

To allow end users define network behavior and to make communication network evolution service-driven, we propose fast and secure capsule processing environment, dedicated CPU architecture named Stream Code and related mechanisms. In our proposedarc hitecture each packet contains a program for the packet written in Stream Code binary instructions. Every computational resources for packet processing is isolated for each packet and is cleared when execution time limit expires. This prevents malicious programs affecting other packets without virtual machines. Middleware attaches appropriate Stream Code programs considering the user requirements. A sample application, contents-sensitive multicast on our Stream Code emulator, in which a streaming application on a server attaches appropriate multicast program for each contents, optimizes packet loss in multicast in per-user and per-contents basis.