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    Distributed processing of route selection across networks and subnetworks
    6.
    发明公开
    Distributed processing of route selection across networks and subnetworks 失效
    VerteilteDurchführungvon RoutenauswahlüberNetzwerke und Teilnetzwerke。

    公开(公告)号：EP0599764A1

    公开(公告)日：1994-06-01

    申请号：EP93480163.0

    申请日：1993-10-19

    申请人： International Business Machines Corporation

    发明人： Derby, Jeffrey Haskell ,  Drake, John Ellis, Jr. ,  Sandick, Haldon J. ,  Doeringer, Willibald A. ,  Dykeman, Douglas H. ,  Vu, Ken Van

    IPC分类号： H04L12/56

    CPC分类号： H04L45/04 ,  H04L45/44

    摘要： The process for determining the best communication route from a source end station to a destination end station is distributed over both source and destination network nodes. Network nodes, at the interface between a wide area network (WAN) and each subnetwork, contain access agents to control the communication flow between the wide area network and an end station in the subnetwork. The task of selecting the best route between two end stations is distributed between the access agents at the WAN interface in the first subnetwork, and the access agents at the WAN interface in the second subnetwork. Each access agent at one WAN interface obtains the best route from itself to the end station in its subnetwork. Each access agent at the other WAN interface finds the best route from each access agent at the first WAN interface through itself to the end station in its subnetwork. One designated access agent collects all the best route information. This best route information is concatenated, and the route with the least weight is selected as the best route between end stations.

    摘要翻译： 用于确定从源端站到目的地端站的最佳通信路由的过程分布在源网络节点和目的地网络节点上。 在广域网（WAN）和每个子网之间的接口处的网络节点包含访问代理以控制广域网与子网中的终端站之间的通信流。 在两个终端站之间选择最佳路由的任务分布在第一子网中的WAN接口的接入代理和第二子网中WAN接口的接入代理之间。 一个WAN接口上的每个接入代理在其子网中获得从自己到终端站的最佳路由。 另一个WAN接口的每个接入代理在第一个WAN接口通过自己的每个接入代理寻找到其子网中的终端站的最佳路由。 一个指定的访问代理收集所有最好的路由信息​​。 这个最佳路由信息是连接起来的，重量最小的路由被选为终端站之间的最佳路由。

    Forming and maintaining access groups at the Lan/Wan interface
    7.
    发明公开
    Forming and maintaining access groups at the Lan/Wan interface 失效
    Bildung und Aufrechterhaltung von Zugriffsgruppen an der Lan / Wan Schnittstelle。

    公开(公告)号：EP0598674A1

    公开(公告)日：1994-05-25

    申请号：EP93480165.5

    申请日：1993-10-19

    申请人： International Business Machines Corporation

    发明人： Sandick, Haldon J. ,  Derby, Jeffrey Haskell ,  Doeringer, Willibald A. ,  Drake, John Ellis, Jr. ,  Dykeman, Douglas H. ,  Li, Liang ,  Peters, Marcia Lambert

    IPC分类号： H04L12/66

    CPC分类号： H04L12/66

    摘要： Access agents (AA1-AA5) in nodes at the LAN/WAN interface are formed into a group of access agents so that the access agents may be managed by the WAN as a group. The group must maintain group operation integrity in that if communications between agents in the group are broken, the access agents will coalesce into subgroups and continue performing communication jobs as a group activity. Each of the access agents contains a finite state machine to perform the tasks of group formation and maintenance. The formation of interconnected access agents into a group is accomplished by one access agent being identified as a group leader. All other access agents communicating with the group leader within the LAN may then join the group. The maintenance of group activity integrity is accomplished by detecting a break in group communication integrity and thereafter reforming the group into multiple smaller groups. The maintenance of group operation integrity also includes the merger of small groups into a large group when a bridge is added between LAN segments.

    摘要翻译： 在LAN / WAN接口的节点中的接入代理（AA1-AA5）形成一组接入代理，使得接入代理可以由WAN作为一组进行管理。 组合必须保持组操作完整性，因为如果组中的代理之间的通信中断，则访问代理将合并成子组并继续执行通信作业作为组活动。 每个访问代理包含一个有限状态机来执行组的形成和维护任务。 将互连的访问代理程序组合成一个组是通过一个访问代理被识别为组长来完成的。 所有与LAN内的组长通信的其他访问代理可以加入该组。 群体活动完整性的维护是通过检测组通信完整性的突破，然后将组重组为多个较小的组来实现的。 群组运行完整性的维护还包括在LAN段之间添加桥梁时，将小组合并成一个大组。

    Function distribution in a packet switched network
    8.
    发明公开
    Function distribution in a packet switched network 失效
    Funktionsverteilung im Paketvermittlungsnetz。

    公开(公告)号：EP0598671A2

    公开(公告)日：1994-05-25

    申请号：EP93480067.3

    申请日：1993-06-03

    申请人： International Business Machines Corporation

    发明人： Derby, Jeffrey Haskell ,  Drake, John Ellis, Jr. ,  Dudley, John Gary ,  Hervatic, Elizabeth Anne ,  Janniello, James Patrick ,  Kaplan, Marc Adam ,  Kesner, Barry ,  Koperda, Francis Richard ,  Peters, Marcia Lambert ,  Potter, Kenneth Harvey, Jr. ,  Tsigler, Andrey Lev ,  Marin, Gerald Arnold ,  Gopal, Inder Sarat ,  Cidon, Israel

    IPC分类号： H04L12/56 ,  H04L12/18 ,  H04Q11/04

    CPC分类号： H04L49/255 ,  H04L12/1854 ,  H04L49/201 ,  H04L49/203 ,  H04L2012/5652 ,  H04Q11/0478

    摘要： A packet switched communication system employing ANR and/or multicast tree routing is improved by using a Copy ID field in the network header of the packet. The Copy ID field defines a control function and allows packet processing to be distributed among the several processors of each node. The selection of the processor (or processors) to receive the packet may be accomplished by making use of the routing field of the network header to qualify the control function specified in the Copy ID field. The control message is processed as defined for the control function by the processor receiving the packet. In multicast tree routing the control function is performed at all nodes in the multicast tree. In ANR routing, a prefacing "selective copy" bit is included in each label in the routing field of the network header; each node employed in the packet transmission path uses one label. The selective copy bit in each label triggers or not (according to its setting) the copy function in that node. The network control function specified in the Copy ID field may be performed in a given node when the copy function is triggered for that node.

    摘要翻译： 通过使用分组的网络报头中的复制ID字段来改进采用ANR和/或多播树路由的分组交换通信系统。 复制ID字段定义了一个控制功能，并允许在每个节点的几个处理器之间分发数据包处理。 用于接收分组的处理器（或处理器）的选择可以通过利用网络报头的路由字段来限定复制ID字段中指定的控制功能来实现。 控制消息按接收分组的处理器按照为控制功能定义的处理。 在组播树路由中，多播树中的所有节点都执行控制功能。 在ANR路由中，前缀“选择性复制”位包含在网络报头的路由字段中的每个标签中; 在分组传输路径中使用的每个节点使用一个标签。 每个标签中的选择性复制位将触发或不（根据其设置）该节点中的复制功能。 当为该节点触发复制功能时，可以在给定节点中执行“复制ID”字段中指定的网络控制功能。