Capacity design studies of span-restorable mesh transport networks with shared-risk link group (SRLG) effects
Capacity design studies of span-restorable mesh transport networks with shared-risk link group (SRLG) effects
复制标题
具有共享风险链路组（SRLG）效应的跨段可恢复网状传输网络的容量设计研究
DOI：
10.1117/12.475308
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发表时间：
2002
期刊：
影响因子：
--
通讯作者：
W. Grover
中科院分区：
文献类型：
--
作者：
J. Doucette;W. Grover
我们研究的总容量需求的跨可扩展的网状网络设计的所有可能的双重故障组合事件在一个共同的节点上的百分比增加。我们感兴趣的问题是：有没有任何指导方针或见解，以多少这样的SRLG可以持续之前，容量惩罚变得严重？我们能否诊断哪些SRLG对整体网络效率的限制最大？什么时候才值得采取实际措施消除某个SRLG？在解决这些问题，我们提供了一个设计配方和规划任何span-smallable网络的一组已知的SRLG程序。一个有趣的发现是，如果所有的双故障组合事件的一个共同的节点被允许在设计中，那么几乎所有其他双跨故障组合（网络中的任何两个跨度）也将是可预测的。我们还产生的实验结果显示，总容量如何取决于相对数量或频率的同时发生SRLG和量化的SRLG的类型将如何影响设计成本。
We study the total capacity requirements of span-restorable mesh network designs as the percentage of all possible dual failure combinations incident on a common node is increased. Our interest is in questions such as: Are there any guidelines or insights as to how many such SRLGs can be sustained before the capacity penalty becomes severe? Can we diagnose which SRLGs are the most limiting to overall network efficiency? When would it be worthwhile to take physical measures to eliminate a certain SRLG? In addressing these questions we provide a design formulation and procedure for planning any span-restorable network for a known set of SRLGs. One finding of interest is that if all dual failure combinations incident to a common node are allowed for in the design, then nearly all other dual span failure combinations (any two spans in the network) will also be restorable. We also produce experimental results showing how total capacity depends on the relative number or frequency of co-incident SRLGs and quantify how the type of SRLG will impact design costs.