Buffer management in connectionless servers for AAL5 traffic

Connectionless service over ATM networks is supported either, indirectly, by establishing separate end to end virtual connections between ATM end stations or directly by using a connectionless server (CLS). This paper presents an in-depth performance comparison of various buffer management strategies in the CLS for AAL5 traffic. All three logical buffers (cell-collection, processing, and departure) in a CLS are considered. Different buffer space allocation schemes and cell discarding mechanisms are studied with respect to their efficiency in buffer space utilisation, frame loss probability and forwarding delays for a given buffer size and traffic