公开(公告)号：US5870589A

公开(公告)日：1999-02-09

申请号：US899024

申请日：1997-07-23

申请人： Cedell Adam Alexander, Jr. ,  John Kevin Frick ,  Matthew Blaze Squire ,  Edward Joel Rovner

发明人： Cedell Adam Alexander, Jr. ,  John Kevin Frick ,  Matthew Blaze Squire ,  Edward Joel Rovner

IPC分类号： G06F9/44 ,  G06F13/14

CPC分类号： H04L41/145 ,  H04L43/16 ,  H04L61/106 ,  H04L61/6022 ,  H04L61/604 ,  H04L12/5601

摘要： Provided are a method and system for achieving enhanced performance in communications involving one or more emulated networks overlaid onto at least one base network, where the emulation is performed by one or more network emulation servers-broadcast and unknown servers. The objects of the method and system are achieved via the following. Monitoring addresses of data transiting the one or more network emulation servers-broadcast and unknown servers where such monitored addresses are indicative of one or more functions provided by the one or more emulated networks. Tracking the monitored addresses. Comparing the tracked addresses, indicative of on or more functions provided by the one more emulated networks, with one or more prespecified thresholds indicative of monopolization of resources of the at least one emulated network. And, taking corrective action when the aforementioned comparing of addresses indicates that one or more entities associated with the tracked addresses are monopolizing resources of the at least one emulated network such that communications involving the at least one emulated network are enhanced.

摘要翻译： 提供了一种用于在涉及覆盖在至少一个基本网络上的一个或多个仿真网络的通信中实现增强的性能的方法和系统，其中仿真由一个或多个网络仿真服务器（广播和未知服务器）执行。 方法和系统的对象通过以下方式实现。 监视一个或多个网络仿真服务器的数据的地址 - 广播和未知服务器，其中这些监视的地址指示由一个或多个仿真网络提供的一个或多个功能。 跟踪监控的地址。 比较跟踪地址，指示由一个更多仿真网络提供的多个功能的一个或多个预定阈值，其指示所述至少一个仿真网络的资源的垄断。 并且，当前述的地址比较指示与所跟踪的地址相关联的一个或多个实体是所述至少一个仿真网络的垄断资源时，采取纠正措施，使得涉及所述至少一个仿真网络的通信被增强。

公开(公告)号：US6064675A

公开(公告)日：2000-05-16

申请号：US834047

申请日：1997-04-11

申请人： Cedell Adam Alexander, Jr. ,  Charles Allen Carriker, Jr. ,  John Kevin Frick ,  Edward Joel Rovner ,  Matthew Blaze Squire ,  Deepak Vig

发明人： Cedell Adam Alexander, Jr. ,  Charles Allen Carriker, Jr. ,  John Kevin Frick ,  Edward Joel Rovner ,  Matthew Blaze Squire ,  Deepak Vig

IPC分类号： H04L12/56 ,  H04Q11/04 ,  H04L12/28

CPC分类号： H04Q11/0478 ,  H04L2012/5617 ,  H04L2012/5618

摘要： An ATM communications network with several ELANs allows steady-state data to be passed between ATM attached devices which bypasses intermediate LECs and bridges. Connected to the ATM communications network is a bridge unit which includes a bridge and associated LECs. Also, an origination ATM attached device and a destination ATM attached device are attached to the ATM communications network via a first by a first ELAN and a second ELAN, respectively. The origination ATM attached device sends a request for an ATM address associated with the destination ATM attached device to the bridge, via the first ELAN. After some processing, the bridge returns the ATM address associated with the destination ATM attached device to the origination ATM attached device. This allows the origination ATM attached device to establish a shortcut VCC with the destination ATM attached device using the ATM address associated with the destination ATM attached device, thereby bypassing intermediate bridges and LECs.

摘要翻译： 具有多个ELAN的ATM通信网络允许在旁路中间LEC和桥接器的ATM连接设备之间传递稳态数据。 连接到ATM通信网络是一个桥接单元，包括一个桥和相关的LEC。 另外，ATM ATM连接装置和目的ATM连接装置分别通过第一ELAN和第二ELAN分别连接到ATM通信网络。 始发ATM连接设备通过第一ELAN将与目的ATM连接设备相关联的ATM地址的请求发送到桥。 经过一些处理后，桥接器将与目的ATM连接设备相关联的ATM地址返回给始发ATM连接设备。 这允许始发的ATM连接设备使用与目的地ATM连接设备相关联的ATM地址与目的地ATM连接设备建立快捷VCC，从而绕过中间网桥和LEC。

公开(公告)号：US06671253B1

公开(公告)日：2003-12-30

申请号：US09400204

申请日：1999-09-21

申请人： Cedell Adam Alexander, Jr. ,  John Kevin Frick ,  Edward Joel Rovner

发明人： Cedell Adam Alexander, Jr. ,  John Kevin Frick ,  Edward Joel Rovner

IPC分类号： G01R3108

CPC分类号： H04L12/4625

摘要： A method and system for providing enhanced peer redundancy in an ATM emulated local area network (ELAN) served by a primary LAN emulation server (LES), a peer LAN emulation server, a broadcast and unknown server (BUS), and a LAN emulation configuration server (LECS). An enhanced peer redundancy virtual channel connection (VCC) is established between the primary LES/BUS and the peer LES/BUS. The primary LES/BUS and the peer LES/BUS exchange status messages every two seconds indicating the number of assigned LECs. If the primary has fewer LECs than the peer, the primary yields to the peer as the active LES/BUS. If an enhanced redundancy VCC was not established, the backup LES/BUS provides ELAN services while waiting for the primary to call to establish an enhanced redundancy VCC. If an enhanced peer redundancy VCC cannot be established, the primary attempts to establish a redundancy VCC with the peer in which the peer LES/BUS is kept in a dormant mode as long as the redundancy VCC is present. If the redundancy VCC is absent, the peer LES/BUS is activated to service the ELAN.

摘要翻译： 一种用于在由主LAN仿真服务器（LES），对等LAN仿真服务器，广播和未知服务器（BUS）以及LAN仿真配置服务的ATM模拟局域网（ELAN）中提供增强的对等冗余的方法和系统 服务器（LECS）。 在主LES / BUS和对等LES / BUS之间建立增强的对等冗余虚拟通道连接（VCC）。 主LES / BUS和对等LES / BUS交换状态消息每隔两秒表示分配的LEC数。 如果主要的LEC比对等体更少，则作为活动的LES / BUS的对等体的主要产出。 如果没有建立增强冗余VCC，则备用LES / BUS提供ELAN服务，同时等待主要呼叫建立增强型冗余VCC。 如果增强对等体冗余VCC不能建立，主要尝试与对等体建立冗余VCC，其中对等体LES / BUS保持在休眠模式，只要存在冗余VCC。 如果不存在冗余VCC，则激活对等体LES / BUS来为ELAN服务。

公开(公告)号：US06345055B1

公开(公告)日：2002-02-05

申请号：US09153189

申请日：1998-09-15

申请人： John Kevin Frick ,  Edward Joel Rovner ,  Cedell Adam Alexander, Jr.

发明人： John Kevin Frick ,  Edward Joel Rovner ,  Cedell Adam Alexander, Jr.

IPC分类号： H04J1500

CPC分类号： H04L12/5601 ,  H04J15/00 ,  H04L12/4608 ,  H04L2012/5617

摘要： A method for providing interoperability between multiple versions of LUNI within a mixed Asynchronous Transfer Mode emulated LAN is disclosed. The mixed ATM emulated LAN includes multiple LAN emulated clients (LE clients) having different versions of LAN Emulation User Network Interface (LUNI), such as a first version LUNI and a second version LUNI. The mixed ATM emulated LAN is served by a LAN Emulation Server (LES), a Broadcast and Unknown Server (BUS), and a LAN Emulation Configuration Server (LECS). When an LE Control Frame is being sent by an LE client having a second version LUNI, a determination is made as to whether or not the LE Control Frame will be received by an LE client having a first version LUNI. In response to a determination that the LE Control Frame sent by the LE client having a second version LUNI will be received by an LE client having a first version LUNI, the LE Control Frame is copied, and the copied LE Control Frame is converted to an LE Control Frame with a format that is readable by the LE client having a first version LUNI.

摘要翻译： 公开了一种在混合异步传输模式仿真LAN中提供多个版本的LUNI之间的互操作性的方法。 混合ATM模拟LAN包括具有不同版本的LAN仿真用户网络接口（LUNI）的多个LAN模拟客户端（LE客户端），例如第一版本LUNI和第二版本LUNI。 混合ATM模拟LAN由LAN仿真服务器（LES），广播和未知服务器（BUS）和LAN仿真配置服务器（LECS）提供。 当由具有第二版本的LUNI的LE客户机发送LE控制帧时，确定LE控制帧是否将被具有第一版本LUNI的LE客户端接收。 响应于具有第二版本的LUNI的LE客户端发送的LE控制帧将被具有第一版本LUNI的LE客户端接收到，LE控制帧被复制，并且复制的LE控制帧被转换为 LE控制帧，具有LE客户机可读取的第一版本的LUNI格式。

公开(公告)号：US06324163B1

公开(公告)日：2001-11-27

申请号：US08977641

申请日：1997-11-24

申请人： Cedell Adam Alexander, Jr. ,  Jim P. Ervin ,  Edward Joel Rovner ,  Matthew Blaze Squire ,  Mark Alan Tippens

发明人： Cedell Adam Alexander, Jr. ,  Jim P. Ervin ,  Edward Joel Rovner ,  Matthew Blaze Squire ,  Mark Alan Tippens

IPC分类号： H04L1228

CPC分类号： H04Q11/0478 ,  H04L2012/5617 ,  H04L2012/563 ,  H04L2012/5632

摘要： A method of alleviating network congestion in an emulated Local Area Network (ELAN) within an Asynchronous Transfer Mode (ATM) network is implemented. The method mitigates network congestion by distributing the connection times of Local Area Network (LAN) Emulation Client (LEC) to an ELAN over random periods of time. When a LAN Emulation Server (LES) or Broadcast and Unknown Server (BUS) attempts to build point-to-multipoint connections to the LEC, it issues control messages to network switches. If the messages are dropped or rejected the LES or BUS recognizes the network is in a congested state and randomly retries to attempt connection.

摘要翻译： 实现了在异步传输模式（ATM）网络中的模拟局域网（ELAN）中减轻网络拥塞的方法。 该方法通过随机时间将局域网（LAN）仿真客户端（LEC）的连接时间分配给ELAN来减轻网络拥塞。 当LAN仿真服务器（LES）或广播和未知服务器（BUS）尝试构建到LEC的点对多点连接时，它向网络交换机发出控制消息。 如果消息丢失或拒绝，则LES或BUS识别网络处于拥塞状态，随机重试尝试连接。

公开(公告)号：US5909441A

公开(公告)日：1999-06-01

申请号：US840313

申请日：1997-04-11

申请人： Cedell Adam Alexander, Jr. ,  Edward Joel Rovner ,  Sonia Kiang Rovner

发明人： Cedell Adam Alexander, Jr. ,  Edward Joel Rovner ,  Sonia Kiang Rovner

IPC分类号： H04L12/46 ,  H04L12/56 ,  H04Q11/04 ,  H04L12/28

CPC分类号： H04Q11/0478 ,  H04L12/4608 ,  H04L2012/5617 ,  H04L2012/5668

摘要： To ensure a LES issues address resolution responses when necessary, an association between a MAC/ATM address pair and an intersubnet shortcut virtual channel connection (VCC) is registered. When the LES receives a first data frame being sent from a first station to a second station, with the second station having a MAC address associated with a shortcut VCC, a second data frame is created. The second data frame has as a source address the MAC address. The second frame is sent to devices associated with the first station so that the devices may learn the origination point for the second station and can issue messaging necessary to establish an shortcut VCC. In addition, frame loss reduction in an ATM communications network is accomplished by registering an association between a MAC address of a router associated with a MAC/ATM address pair, and a shortcut VCC. After the association is registered, a data frame being sent from a first station to a second station is received. The second station has the same MAC address as the MAC/ATM address pair. The destination MAC address of the data frame is replaced with the MAC address of the router, wherein the data frame can now be delivered. Also, a first station is prevented from having to wait to send data to a second station over a newly created shortcut VCC by registering an association between a MAC/ATM address pair and a shortcut VCC. Next, a flush request message from an edge device on an ELAN is received. The flush request has a destination ATM address equal to the ATM address of the MAC/ATM address pair. A flush response message is sent to the edge device, where upon receiving the flush response message, the edge device will start sending data from the first station to the second station over the newly created shortcut VCC.

摘要翻译： 为了确保LES在必要时发布地址解析响应，注册MAC / ATM地址对与子网间快捷虚拟通道连接（VCC）之间的关联。 当LES接收到从第一站发送到第二站的第一数据帧时，第二站具有与快捷方式VCC相关联的MAC地址，产生第二数据帧。 第二个数据帧作为MAC地址的源地址。 第二帧被发送到与第一站相关联的设备，使得设备可以学习第二站的发起点并且可以发出建立快捷方式VCC所需的消息。 此外，ATM通信网络中的帧丢失减少通过注册与MAC / ATM地址对相关联的路由器的MAC地址与快捷方式VCC之间的关联来实现。 在关联被注册之后，接收从第一站发送到第二站的数据帧。 第二站具有与MAC / ATM地址对相同的MAC地址。 数据帧的目标MAC地址被路由器的MAC地址替换，其中现在可以传送数据帧。 此外，通过注册MAC / ATM地址对和快捷方式VCC之间的关联，防止第一站等待通过新创建的快捷方式VCC向第二站发送数据。 接下来，接收来自ELAN上的边缘设备的刷新请求消息。 刷新请求具有等于MAC / ATM地址对的ATM地址的目的地ATM地址。 向边缘设备发送刷新响应消息，其中在接收到刷新响应消息时，边缘设备将通过新创建的快捷方式VCC开始从第一站向第二站发送数据。

公开(公告)号：US06625158B1

公开(公告)日：2003-09-23

申请号：US08903756

申请日：1997-07-31

申请人： Cedell Adam Alexander, Jr. ,  Charles Allen Carriker, Jr. ,  Jim Philip Ervin ,  John Kevin Frick ,  Matthew Blaze Squire ,  Deepak Vig

发明人： Cedell Adam Alexander, Jr. ,  Charles Allen Carriker, Jr. ,  Jim Philip Ervin ,  John Kevin Frick ,  Matthew Blaze Squire ,  Deepak Vig

IPC分类号： H04L1256

CPC分类号： H04L12/4608 ,  H04L2012/5617

摘要： Provided are a method and system for achieving enhanced performance in communications between a plurality of emulated networks overlaid onto at least one base network, wherein the communications involve one or more source route bridges. The method and system accomplish their objects via the following. Determining when communication is to occur, through the one or more source route bridges, and between at least two entities where a first of the at least two entities is a member of a first emulated network and where a second of the at least two entities is a member of another of the plurality of emulated networks. Informing the at least one of the at least two entities of one or more addresses consonant with the protocols of the at least one base network wherein the one or more addresses identify one or more base network entities closely correspondent to at least one of the at least two entities. And thereafter utilizing the one or more addresses in communication between the first and second entities such that communications between the first and second entities is established in such a fashion that at least one of the one or more source route bridges is bypassed, thereby ensuring that the processing and delay associated with the at least one bypassed source route bridge is avoided wherein the performance in communications involving the at least two emulated networks is enhanced.

摘要翻译： 提供了一种用于实现覆盖在至少一个基本网络上的多个仿真网络之间的通信中的增强的性能的方法和系统，其中所述通信涉及一个或多个源路由桥接器。 该方法和系统通过以下方式完成其对象。 确定何时发生通信，通过一个或多个源路由桥，以及至少两个实体之间，其中该至少两个实体中的第一个是第一仿真网络的成员，并且其中该至少两个实体中的第二个实体是 多个仿真网络中的另一个的成员。 通知与所述至少一个基本网络的协议一致的一个或多个地址的所述至少两个实体中的至少一个，其中所述一个或多个地址标识与所述至少一个基站网络中的至少一个紧密对应的一个或多个基本网络实体 两个实体。 然后利用第一和第二实体之间的通信中的一个或多个地址，使得第一和第二实体之间的通信被建立成使得所述一个或多个源路由桥中的至少一个绕过，从而确保 避免了与所述至少一个旁路源路由桥相关联的处理和延迟，其中涉及所述至少两个仿真网络的通信中的性能被增强。

公开(公告)号：US08619773B2

公开(公告)日：2013-12-31

申请号：US12846811

申请日：2010-07-29

申请人： Clarence Filsfils ,  Cedell Adam Alexander, Jr. ,  Jim Guichard

发明人： Clarence Filsfils ,  Cedell Adam Alexander, Jr. ,  Jim Guichard

IPC分类号： H04L12/28

CPC分类号： H04L45/30 ,  H04L45/42 ,  H04L67/28

摘要： Packets are encapsulated and sent from a service node to one or more application nodes for applying one or more Layer-4 to Layer-7 services to the packets. Before which for a packet, the service node performs a lookup operation based on a destination address of the packet in a routing data structure derived from a exterior network protocol, such as, but not limited to Border Gateway Protocol (BGP). This lookup operation results in the identification of a next hop packet switching device to which the packet would be sent from the service node. The service node includes this identification of the next hop address in the request packet sent to the application node(s). After the service(s) are applied to the packet, an application node will send the services-applied packet to this next hop address. In this manner, application nodes do not need to run an exterior network protocol. Although, they typically will run an Interior Gateway Protocol for identifying how to forward packets to the next hop address.

摘要翻译： 分组被封装并从服务节点发送到一个或多个应用节点，以将一个或多个第4层到第7层服务应用于分组。 在分组之前，服务节点基于来自外部网络协议（例如但不限于边界网关协议（BGP））的路由数据结构中的分组的目的地地址来执行查找操作。 该查找操作导致从服务节点发送分组的下一跳分组交换设备的标识。 服务节点包括发送到应用节点的请求分组中的下一跳地址的标识。 应用程序节点将该服务应用于数据包后，将将应用服务的数据包发送到下一跳地址。 以这种方式，应用节点不需要运行外部网络协议。 虽然，它们通常将运行内部网关协议，用于识别如何将数据包转发到下一跳地址。

公开(公告)号：US06452921B1

公开(公告)日：2002-09-17

申请号：US09199071

申请日：1998-11-24

申请人： Cedell Adam Alexander, Jr. ,  Russell Eugene Gardo ,  Brahmanand Kumar Gorti ,  Olen Lee Stokes, Jr.

发明人： Cedell Adam Alexander, Jr. ,  Russell Eugene Gardo ,  Brahmanand Kumar Gorti ,  Olen Lee Stokes, Jr.

IPC分类号： H04L1228

CPC分类号： H04L45/10 ,  H04L12/4608 ,  H04L12/5601 ,  H04L2012/5617 ,  H04L2012/5668 ,  H04L2012/5669

摘要： In a data communication internetwork including a source station, an end station, and a default router for the source station, a default communication path including the default router is defined between the source station and the destination station. During operation of the data communication internetwork, a shortcut data communication path by passing the default router is established between the source station and the destination station, such that data packets transmitted by the source station are not received by the default router. After the shortcut communication path has been established, a control frame containing source-route information regarding the source station is transmitted to the router, and the source-route information is stored at the router. In this manner, the default router can efficiently direct data packets to the source station and facilitate the establishment of shortcut communication paths terminating at the source station even though the default router is bypassed by a shortcut communication path.

摘要翻译： 在包括源站，终端站和用于源站的默认路由器的数据通信互联网络中，在源站和目的地站之间定义包括默认路由器的默认通信路径。 在数据通信互联网的运行过程中，在源站与目的站之间建立通过缺省路由器的快捷数据通信路径，使得由源站发送的数据包不被默认路由器接收。 快速通信路径建立后，将包含源站的源路由信息的控制帧发送给路由器，源路由信息存储在路由器上。 以这种方式，默认路由器可以有效地将数据分组引导到源站，并且便于建立在源站终止的快捷通信路径，即使默认路由器被快捷通信路径旁路。

公开(公告)号：US06178171B1

公开(公告)日：2001-01-23

申请号：US08977459

申请日：1997-11-24

申请人： Cedell Adam Alexander, Jr. ,  Brahmanand Gorti ,  Matthew Blaze Squire

发明人： Cedell Adam Alexander, Jr. ,  Brahmanand Gorti ,  Matthew Blaze Squire

IPC分类号： H04L1228

CPC分类号： H04L29/12018 ,  H04L12/4608 ,  H04L29/12009 ,  H04L45/04 ,  H04L45/10 ,  H04L45/26 ,  H04L45/34 ,  H04L61/10

摘要： A method is implemented to enable networks employing source-route bridging to participate in route switched, Asynchronous Transfer Mode (ATM), networks. Such source-routed networks, for example, Token-Ring LANs, incorporate an end-to-end route description in the data packets transmitted by the source station. The end-to-end route description is contained in a Route Information Field (RIF). The method implemented herein associates an RIF with the ATM address corresponding to a destination station. This permits the source-route bridged network to exploit the efficiencies of layer-2 connections and the high-speed switching characteristics of the ATM network.

摘要翻译： 实现一种采用源路由桥接的网络参与路由交换，异步传输模式（ATM），网络的方法。 这样的源路由网络，例如，令牌环LAN，在由源站发送的数据分组中包含端到端路由描述。 端到端路由描述包含在路由信息字段（RIF）中。 这里实现的方法将RIF与对应于目的地站的ATM地址相关联。 这允许源路由桥接网络利用二层连接的效率和ATM网络的高速交换特性。