A platform for seamless interworking among conventional LANs and ATM networks

Internetworking of FDDI, Ethernet or other local area networks including the ATM-LAN to the public ATM networks will involve the development of the ATM hub. Taking the performance and cost-effective factors into account, a scalable two-stage switching hub platform is proposed for private network environment with ATM-ready capabilities. Packet as well as cell switching architectures are adopted for the design of the switching fabrics. The architecture applies the concept of each source/destination port pair with dedicated input and output queues. A generalized multisubsystem interconnect adapter (MIA) is also proposed for heterogeneous subsystems to a common switching fabric. The design complexity versus performance of the I/O queues´ number and length are analyzed. Finally, an implementation-leading approach of the MIA is presented