Multicast traffic aggregation in MPLS-based VPN networks

I. Martinez-Yelmo, D. Larrabeiti, I. Soto, P. Pacyna
2007 IEEE Communications Magazine  
This article gives an overview of the current practical approaches under study for a scalable implementation of multicast in layer 2 and 3 VPNs over an IP-MPLS multiservice network. These proposals are based on a well-known technique: the aggregation of traffic into shared trees to manage the forwarding state vs. bandwidth saving trade-off. This sort of traffic engineering mechanism requires methods to estimate the resources needed to set up a multicast shared tree for a set of VPNs. The
more » ... logy proposed in this article consists of studying the effect of aggregation obtained by random shared tree allocation on a reference model of a representative network scenario. The fraction of multipoint-capable optical switches in a network and wavelength assignment constraints to construct light trees will drive the distribution of VPNs bundles to trees. This long-term issue is one of the research topics under study within the IST e-Photon/One project.
doi:10.1109/mcom.2007.4342827 fatcat:zsb4uiropfbx5jhs4q6olbnitm