Method for designing SONET ring networks suitable for local access
    3.
    发明授权
    Method for designing SONET ring networks suitable for local access 失效
    设计适合本地访问的SONET环网的方法

    公开(公告)号:US6061335A

    公开(公告)日:2000-05-09

    申请号:US899103

    申请日:1997-07-24

    摘要: A method is provided for designing a hierarchical architecture for a synchronous optical network (SONET) given a plurality of demand nodes at which communications traffic originates and at least one destination node at which the communications traffic is collected for transmission to a switch. The method includes the steps of: (a) dividing the plurality of demand nodes into distinct groups of demand nodes; (b) selecting at least one node for each group to serve as a ring hub for connection to a backbone ring; (c) designing a backbone ring topology that includes at least the ring hubs and the destination node; (d) designing an access ring topology for each of the demand node groups so that the backbone ring and access ring topologies constitute a preliminary network topology; (e) evaluating a cost associated with the preliminary network topology; (f) selecting at least one alternative ring hub to provide a new set of ring hubs; (g) repeating steps (c)-(e) for the new set of ring hubs to determine if a resulting network cost estimate is reduced; (h) repeating steps (f)-(g) until a minimum cost network topology is produced. Other aspects of the invention are directed to hub and spoke topology design and SONET transport design.

    摘要翻译: 提供了一种用于设计用于给定通信业务发起的多个需求节点的同步光网络(SONET)的层次结构的方法,以及收集通信业务以传送到交换机的至少一个目的地节点。 该方法包括以下步骤:(a)将多个需求节点分成不同的需求节点组; (b)为每个组选择至少一个节点以用作连接到骨干环的环集线器; (c)设计至少包括环集线器和目的节点的骨干环拓扑; (d)为每个需求节点组设计接入环拓扑,使得骨干环和接入环拓扑构成初步网络拓扑; (e)评估与初步网络拓扑相关的成本; (f)选择至少一个替代的环形集线器以提供一组新的环形集线器; (g)对新集合的环集线器重复步骤(c) - (e)以确定所得到的网络成本估计是否减少; (h)重复步骤(f) - (g),直到产生最小成本网络拓扑。 本发明的其它方面涉及集线器和辐射拓扑设计和SONET传输设计。