Interdomain traffic engineering with Redistribution Communities
Bruno Quoitin, Sébastien Tandel, Steve Uhlig and Olivier Bonaventure
Various traffic engineering techniques have been proposed and are used to control
the flow of IP packets inside large ISP networks. However, few techniques have been
proposed to control the flow of packets between domains. In this paper, we focus on
the needs of stub ISPs that compose 80% of the global Internet. We first describe
the typical traffic pattern of such a stub ISP. Then we briefly describe the methods
that those ISPs currently use to engineer their interdomain traffic.We focus on the
control of the incoming traffic and show the increasing utilization of the BGP
Community attribute and discuss the limitations of this approach. We then propose
the redistribution communities as a deployable method to control the flow of the
incoming interdomain traffic. We implement those redistribution communities in zebra
and evaluate its performance.
Published in Computer Communications Journal, October 2003.
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