Inter-Domain AOM and Incremental Deployment

Abstract

This chapter studies the rest of the practical design issues of AOM service model, including asymmetric inter-domain routing, forwarding loops prevention, and incremental deployment. In Sect. 4.1, we propose to incorporate BGP routing information to the RPF concept to address the asymmetric inter-domain routing issue, which avoids the deployment/configuration complexity of MBGP and enables a fast group joining mechanism. The false-positive property of Bloom filter can incur forwarding loops in the Bloom-filter-based multicast protocols. In Sect. 4.2.4, we analyze the effect of false positive on our most closely related work FRM. The theoretical upper bound on loops in AOM is given, and it is proven that AOM is able to automatically eliminate the forwarding loop caused by the Bloom filter false positive. Section 4.3 describes an incremental deployment solution for AOM. AOM can work over a network, in which only a small fraction of routers have AOM-aware intelligence while others are legacy routers. Extensive simulation results over a practical topology are presented in Sect. 4.4 to demonstrate the outstanding performance of AOM, with comparison to classic IP multicast and FRM. This chapter is summarized at the last section.