一种基于CICQ 的动态重路由交换机制
摘要
Multi-path based routing and switching can achieve network-wide load balancing and reduce the port conflicts of switching devices. Motivated by this novel idea, in this paper, through analyzing the feasibility of implementing multi-next-hops in core switching networks comprehensively, we advance a switching scheme called MHRS (multi-next-hop re-routing switch) and a forwarding table management scheme called HMFT (hierarchical multi-stage forwarding table) to support multi-next-hop dynamical re-routing. MHRS implements dynamical re-routing in the switches according its congestion status to achieve real-time load balancing, while HMFT can provide traffic with different forwarding paths based on their QoS requirements. Theoretical analysis and sim- ulation results show that switches equipped with HMFT and MHRS can provide good delay and throughput performance. Besides, they can reduce port conflicts significantly.