Interdomain traffic engineering with Redistribution Communities

Sun, 04/01/2007 - 01:54 by Damien Leroy


Various traffic engineering techniques 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.

B. Quoitin, S. Tandel, S. Uhlig and O Bonaventure
Computer Communications Journal, 27(4):355-363, March 2004.
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