J4 ›› 2016, Vol. 38 ›› Issue (02): 240-248.
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ZHU Chengyang,CHAI Yantao,DONG Dezun,ZHANG Heying,PANG Zhengbin
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Abstract:
Because of the unbalanced traffic in high speed connected networks, some nodes in the networks become hotspots, resulting in congestion in these nodes and related channels , which can harm the performance of high speed connected networks greatly. There is an existing congestion avoidance scheme named Speculative Reservation Protocol (SRP) which can avoid congestion actively, and the SRP eliminates the negative effect induced by hotspots problem tremendously. But in the hotspots model, the resources in most of routers which don't connect any hotspot are idle. In order to fully use the resources and enhance the performance of high speed connected networks, we put forward a novel congestion avoidance scheme called Intermediate Reservation Protocol (IRP) based on reservation. The IRP can effectively use the resources of the routers of neighbor nodes judged by different topologies, such as Fattree. The IRP first sends the packets to the idle routers via the multipath of Fattree. When the destination's router is available, the IRP packets can be sent to the destination nodes, and the latency of high speed connected networks is thus reduced.
Key words: hot-spots;congestion;router;SRP;IRP
ZHU Chengyang,CHAI Yantao,DONG Dezun,ZHANG Heying,PANG Zhengbin. A novel congestion avoidance scheme based on reservation [J]. J4, 2016, 38(02): 240-248.
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http://joces.nudt.edu.cn/EN/Y2016/V38/I02/240