| 摘要： |
The misconfiguration of border routers may cause asymmetric routing in enterprise networks or campus networks which connect to multiple ISPs. In this paper, an asymmetric routing detection method is proposed to solve this problem. The method checks the integrity and symmetry of TCP streams by setting test conditions, thus judging the existence of asymmetric routing in TCP connections. Our method is applied to IP Traces collected on the border of Jiangsu education and research network. The results show the existence of asymmetric routing.In particular, the method can accurately locate where the routingmisconfiguration occurs. |