On Cross-Layer Interactions for Congestion Control in the Internet

Two key mechanisms of the Internet are congestion control in Transmission Control Protocol (TCP) and Active Queue Management (AQM) routers. The former divides bandwidth between flows prevents from collapse. Simultaneously, latter informs hosts forthcoming by preventive dropping packets network nodes. Although these two may severely interact with each other, they often being researched independently, parallel. This has led to development a few new controls AQM algorithms known for excellent performance under assumption that counterpart remains unaltered. It is unclear, however, how solutions both areas other. purpose this paper fill gap. Namely, an extensive set simulations, impact interactions state-of-the-art on TCP connection studied. As result, recommendations using some particular TCP-AQM pairs, which observed perform especially well, formulated.