In today's environments in which LANs are growing in complexity and importance, it is critical that there be effective systems in place to allow these networks to operate across an ATM fabric. The MPOA approach has significant advantages over other Layer 3 switching alternatives. Using cut-through routing over a switched infrastructure, a system based on MPOA can process and forward tens of millions of packets per second. This level of scalability and performance cannot be rivaled by conventional LAN and WAN internetworking solutions. The ATM Forum continues to work in this important area and is addressing the issue of related work in Classical IP, LANE and MARS (Multicast-Address Resolution Server) for support of Multicast.
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