TCP Over ABR in ATM Networks with Variable Topology and Background Traffic
Marco Giuseppe Ajmone Marsan, Andrea G. Bianco, Renato Lo Cigno, Maurizio Matteo Munafò · 1996
The performance of TCP connections exploiting the ATM EFCI ABR transfer capability is investigated through simulation of two simple ATM network topologies, considering variable types of background traffic. The first network topology comprises only two ATM switches, connected by one link, that is the system bottleneck. The second topology comprises four nodes arranged in the layout generally known in the literature with the name `parking lot'. The background traffic is taken to be either moderately bursty or extremely bursty, with ON-OFF characteristics. TCP connections are assumed to perform long file transfers, as in ftp application, during the whole simulation experiment, thus operating in overload conditions. ABR parameters such as RIF and RDF are varied in the simulation study in order to examine their influence on the performance of TCP connections. 1 Introduction The essence of the ABR (Available Bit Rate [1]) ATM transfer capability lies in the periodic insertion of resource m...