Six/one router: a scalable and backwards compatible solution for provider-independent addressing

  • Authors:
  • Christian Vogt

  • Affiliations:
  • Ericsson, Jorvas, Finland

  • Venue:
  • Proceedings of the 3rd international workshop on Mobility in the evolving internet architecture
  • Year:
  • 2008

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Abstract

The scalability of the Internet routing system suffers from an increasing demand for provider-independent, non-aggregatable IP addresses in networks at the Internet edge. New routing architectures have been proposed that mitigate this problem through indirection between provider-independent addresses at the edge and aggregatable, provider-allocated addresses in the core of the Internet. A major challenge in these architectures is backwards compatibility. Address indirection requires support at the sender and the receiver, so without appropriate backwards compatibility support, it defeats communications between the upgraded and the legacy Internet. This paper proposes an address-indirection-based solution that is backwards compatible. The solution is shown to offer the benefits of provider-independent addressing in a scalable and backwards compatible manner, and to provide the incentives necessary to foster its early deployment.