A case for stateful forwarding plane

  • Authors:

  • Cheng Yi;Alexander Afanasyev;Ilya Moiseenko;Lan Wang;Beichuan Zhang;Lixia Zhang

  • Affiliations:

  • The University of Arizona, P.O. Box 210077, Tucson, AZ 85721-0077, USA;University of California, Los Angeles, 4732 Boelter Hall, Los Angeles, CA 90095, USA;University of California, Los Angeles, 4732 Boelter Hall, Los Angeles, CA 90095, USA;The University of Memphis, Dunn Hall 209, Memphis, TN 38152-3240, USA;The University of Arizona, P.O. Box 210077, Tucson, AZ 85721-0077, USA;University of California, Los Angeles, 4732 Boelter Hall, Los Angeles, CA 90095, USA

  • Venue:
  • Computer Communications
  • Year:
  • 2013

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Abstract

In Named Data Networking (NDN), packets carry data names instead of source and destination addresses. This paradigm shift leads to a new network forwarding plane: data consumers send Interest packets to request desired data, routers forward Interest packets and maintain the state of all pending Interests, which is then used to guide Data packets back to the consumers. Maintaining the pending Interest state, together with the two-way Interest and Data exchange, enables NDN routers'forwarding process to measure performance of different paths, quickly detect failures and retry alternative paths. In this paper we describe an initial design of NDN's forwarding plane and evaluate its data delivery performance under adverse conditions. Our results show that this stateful forwarding plane can successfully circumvent prefix hijackers, avoid failed links, and utilize multiple paths to mitigate congestion. We also compare NDN's performance with that of IP-based solutions to highlight the advantages of a stateful forwarding plane.