In 2001 , after several large - scale capacity expansions , the atm network had 18 core nodes and 108 edge nodes 到了2001年,经过几次大规模的扩容,核心节点的数量扩充到18个,边缘节点同步扩容到108个。
Network tomography is a new method of network measurement . it doesn ’ t need the corporation of the interior nodes , and will complete the task only by collecting message from the edge 网络层析成像无需内部节点协作,只在边缘节点进行信息收集即可完成测量,受到广泛关注与研究。
After comparing the simulation results of different assemble algorithms , several requests have been put forwarded to the design of the obs edge node router and the core node router 综合考虑obs边缘节点的汇聚参数和核心节点的交换结构之后得出了obs控制部分的设计方案。所做的仿真研究对今后obs系统的设计有重要意义。
Main contents of this dissertation are listed as follows : 1 . the switching machanism and network performance of obs are analyzed deeply . the obs based on gmpls framework is investigated in detail , which is take advantage of the idea of lobs ( mpls - based obs ) 主要内容包括: 1 、在分析obs交换机制和网络特性的基础上,改进了基于gmpls的obs交换结构,得到了支持组播的obs ( multicast - awareobs )边缘节点与核心节点的功能模型。
边缘: border; edge; fringe; margin ...节点: panel point; hybrid; packing ...边缘节理: fringe joint; marginal joint; marginaljoint边缘访问节点: ban boundary access node边缘访问节点,边界接入节点: ban boundary access node钢轨绝缘节: isolated rail joint节点: [电学] panel point; hybrid; packing; node; nodal points; joint of framework; pitch point; point pitch边缘: 1.(沿边的部分) border; edge; fringe; margin; rim; limb; skirt; verge; brink; periphery 经济破产的边缘 the verge of economic bankruptcy; 悬崖的边缘 the edge of a precipice; 森林的边缘 the fringe of a forest; the verge of a forest; the margin of a forest; 大洋最远的边缘 the farthest bounds of the ocean; 生活在饥饿的边缘 live at the verge of starvation; 战争边缘政策 brink-of-war policy; brinkmanship2.(靠近界线的; 同两方面或多方面有关系的) marginal; borderline 边缘学科 borderline subject; interdisciplinary subject; peripheral subject闭塞区段绝缘节: block joint无绝缘节轨道电路: jointless rail circuit节点到节点: node-to-node边节点: mid-side node波节;节点: node波节点: knot从节点: sub-node调节点: control point; point of accommodation; regulatory point顶节点: top node端节点: end node; tip node多节点: multinode分节点: partial node父节点: father node; parent负节点: antinodal point; negative nodal point刚节点: rigid joint; stiff joint根节点: root node共节点: conode