Stability Analysis of RED Gateway with Multiple TCP Reno Connections

— It has been observed that a bottleneck Random Early Detection (RED) gateway becomes oscillatory when regulating a flow in multiple TCP connections. The stability boundary of the TCP-RED system depends on various network parameters, making the adjustment of the RED gateway a difficult task. Based on a fluid-flow model, we formulate analytical conditions that describe the stable boundary of the RED gateway depending on the number of TCP Reno connections. The proposed model accurately generates a stability boundary surface in a four dimensional space, which facilitates the adjustment of parameters for stable operation of the RED gateway. The accuracy of the analytical results has been verified using the ns-2 network simulations.

• Type: Conference
• Year: 2007
• Where: ISCAS
• Authors: Xi Chen, Siu Chung Wong, Chi K. Michael Tse, Ljiljana Trajkovic
• Keywords: ISCAS 2007, Multiple Tcp Connections, RED Gateway, Stability Boundary