摘要
本文详细分析了各种因素对光突发交换边缘路由器的性能的影响结果显示,不同服务等级的时延要求可以通过控制组装的最大时延得以保证;不同等级数据包长的大范围变动会导致信道分配的不公平性;边缘节点越多,丢包率越高;在总输出容量一定的情况下,增加输出数据信道数可以在获得低的丢包率的同时达到较高的通道利用率,但随着边缘节点数的增加。
The effects of various factors on the performances of edge routers are analyzed in details. The results show that the delay requirement of different class of services can be satisfied by controlling the relative maximum assembly delay. Large burst size variation may lead to unfair in channel assignment. The more the number of edge routers in the OBS networks is, the higher Burst loss rate is. Low burst loss rate and high efficient can be achieved by increasing the number of output channels while the total capacity is invariable. However, the effect is degraded with the increase of the number of edge routers in the OBS networks.
出处
《光子学报》
EI
CAS
CSCD
北大核心
2005年第3期412-415,共4页
Acta Photonica Sinica
基金
国家自然科基金(No.90204006
No.60377013)
国家863计划(No.2001AA122074
No.2002AA122022)
上海市科委(No.012261022
No.022261001)基金资助
