公开(公告)号：US6065062A

公开(公告)日：2000-05-16

申请号：US987899

申请日：1997-12-10

申请人： Ravi Periasamy ,  Wayne Clark ,  Frank Bordonaro ,  Ramin Naderi ,  Kushal A. Patel

发明人： Ravi Periasamy ,  Wayne Clark ,  Frank Bordonaro ,  Ramin Naderi ,  Kushal A. Patel

IPC分类号： H04L12/46 ,  H04L12/56 ,  H04L29/14 ,  G06F15/173

CPC分类号： H04L45/00 ,  H04L12/462 ,  H04L45/58 ,  H04L69/40

摘要： Backup peers in an asymmetrically organized computer network are organized into a "pool" of available devices that are activated as necessary. The network comprises a set of remote peers and a set of local peers directly associated with a central computational facility, the local peers facilitating connection between the remote peers and the central facility. During the capabilities exchange, the "primary" local peer to which the remote peer connects provides a list of backup peer devices to the remote peer. If the primary peer fails (or if the rate of message exchange falls below some predetermined threshold), the remote peer can use the backup information to access a backup peer from the pool. The invention allows each backup peer to be assigned to multiple remote peers, with the total number of backup peers determined by aggregate backup utilization (rather than simply assigning an individual backup peer to each primary peer regardless of whether such a high level of redundancy is justified).

摘要翻译： 在不对称组织的计算机网络中的备份对等体被组织成根据需要被激活的可用设备的“池”。 该网络包括一组远程对等体和一组直接与中央计算设备相关联的本地对等体，本地对等体有助于远程对等体与中央设施之间的连接。 在能力交换过程中，远程对等体连接的“主”本地对等体向远程对等体提供备份对等体设备的列表。 如果主对等体失败（或者如果消息交换速率低于某个预定阈值），则远程对等体可以使用备份信息来访问池中的备份对等体。 本发明允许将每个备份对等体分配给多个远程对等体，其中备份对等体的总数由聚合备份利用率确定（而不是简单地将各个备份对等体分配给每个主对等体，而不管这样高的冗余级别是否合理 ）。

公开(公告)号：US6131117A

公开(公告)日：2000-10-10

申请号：US999271

申请日：1997-12-29

申请人： Wayne Clark ,  Ravi Periasamy

发明人： Wayne Clark ,  Ravi Periasamy

IPC分类号： H04L12/24 ,  H04L29/12 ,  G06F13/14

CPC分类号： H04L41/12 ,  H04L41/0213 ,  H04L41/046 ,  H04L29/12783 ,  H04L61/35

摘要： Heterogeneous resources of an integrated network environment are managed from a single network management station by correlating information pertaining to those resources. The integrated network environment generally comprises SNA and NetBIOS entities coupled to IP routers. Address information pertaining to selected IP routers and SNA entities are acquired by the routers through a series of SNA message flows. Similarly, a series of NetBIOS message flows among those IP routers coupled to the NetBIOS entities result in the acquisition of IP and NetBIOS address information of these resources at the routers. This information is used to create an IP-centric map of the network. In addition, the SNMP agents provide name information pertaining to the SNA-specific and NetBIOS-specific resources to the console using an SNMP protocol. The name information are overlaid on the map to facilitate monitoring of those specific resources by the SNMP tool.

摘要翻译： 通过将与这些资源有关的信息相关联，从单个网络管理站管理集成网络环境的异构资源。 集成网络环境通常包括耦合到IP路由器的SNA和NetBIOS实体。 有关所选IP路由器和SNA实体的地址信息由路由器通过一系列SNA消息流来获取。 类似地，在与NetBIOS实体耦合的那些IP路由器之间的一系列NetBIOS消息流也导致在路由器处获取这些资源的IP和NetBIOS地址信息。 此信息用于创建网络的以IP为中心的地图。 此外，SNMP代理使用SNMP协议向控制台提供与特定于SNA的NetBIOS相关资源的名称信息。 名称信息覆盖在地图上，以便于通过SNMP工具监视这些特定的资源。

公开(公告)号：US6023733A

公开(公告)日：2000-02-08

申请号：US961355

申请日：1997-10-30

申请人： Ravi Periasamy ,  Gnanaprakasam Pandian ,  Frank Gerard Bordonaro ,  Ramin Naderi ,  Kushal A. Patel

发明人： Ravi Periasamy ,  Gnanaprakasam Pandian ,  Frank Gerard Bordonaro ,  Ramin Naderi ,  Kushal A. Patel

IPC分类号： H04L12/56 ,  G06F13/00

CPC分类号： H04L45/00 ,  H04L45/12 ,  H04L45/54 ,  H04L47/10 ,  H04L47/125

摘要： The topology of a computer network is represented, for each routing device in the network, as a tree structure with the root of the tree designating the particular routing device. Tree nodes represent LANs, while arcs connecting the nodes represent other routing devices. Thus, the number of first-level links to children off the root is equal to the number of LANs connected to the source routing device, and those first-level links point to nodes representing the LANs (or LAN segments) directly connected to the source routing device. As a result of this representation, each routing device can store a representation of the entire network adequate to facilitate routing, but with much less memory utilization than a list of addresses. Furthermore, because the network is represented at a more general level than that of individual station addresses, changes to the topology of the network can be readily introduced without the need for extensive (e.g., address by address) reconfiguration.

摘要翻译： 对于网络中的每个路由设备，计算机网络的拓扑被表示为具有指定特定路由设备的树的根的树结构。 树节点表示LAN，而连接节点的弧表示其他路由设备。 因此，到根之外的儿童的第一级链接的数量等于连接到源路由设备的LAN的数量，并且那些一级链路指向代表直接连接到源的LAN（或LAN段）的节点 路由设备 作为该表示的结果，每个路由设备可以存储足够的路由的整个网络的表示，但是比地址列表少得多的存储器利用。 此外，因为网络被表示在比单个站地址更一般的级别，所以可以容易地引入对网络拓扑的改变，而不需要广泛的（例如，通过地址的地址）重新配置。

公开(公告)号：US5737526A

公开(公告)日：1998-04-07

申请号：US366713

申请日：1994-12-30

申请人： Ravi Periasamy ,  Wayne Clark ,  Gnanaprakasam Pandian ,  Ramin Naderi ,  Frank Bordonaro ,  David Lowry

发明人： Ravi Periasamy ,  Wayne Clark ,  Gnanaprakasam Pandian ,  Ramin Naderi ,  Frank Bordonaro ,  David Lowry

IPC分类号： H04L12/56 ,  G06F13/00

CPC分类号： H04L45/04

摘要： A hierarchical wide-area network architecture which conforms to the DLSw protocol is provided, in which multiple routers having a logical connection to one another are designated as a peer group. At least one router in each peer group is designated as a border peer, and functions as a gateway between the members of its group and other peer groups. The peer group structure reduces broadcast traffic on slow links by changing the source of the broadcast from a small access router with a relatively slow link to another, more powerful router, with a faster link on the network. More than one border peer can be included in each group, to share the transmission workload and act as a backup. The border peers can share information about the groups that they service and can cooperate to provide a single-point broadcast service to all of the users of the service. When two or more routers are connected to a network in parallel to provide back-up facilities, conditional filters are employed to prevent redundant operations. Different types of frames are handled by the two different routers, so that they share the communication load between them and make the most effective use of the available bandwidth.

摘要翻译： 提供了符合DLSw协议的分层广域网架构，其中具有彼此逻辑连接的多个路由器被指定为对等组。 每个对等体组中的至少一个路由器被指定为边界对等体，并且用作其组和其他对等体组的成员之间的网关。 对等体组结构通过将具有相对较慢的链路的小型接入路由器的广播源改变到另一个更强大的路由器，通过网络上的更快的链路来减少广播流量。 每个组中可以包含多个边界对等体，以共享传输工作负载并充当备份。 边界对等体可以共享关于它们所服务的组的信息，并且可以进行合作以向服务的所有用户提供单点广播服务。 当两个或多个路由器并行连接到网络以提供备用设施时，采用条件过滤器来防止冗余操作。 不同类型的帧由两个不同的路由器处理，使得它们共享它们之间的通信负载并且最有效地利用可用带宽。