公开(公告)号：US06553421B1

公开(公告)日：2003-04-22

申请号：US09153713

申请日：1998-09-15

申请人： John Kevin Frick ,  Daniel Dean Heimsoth ,  Jon Michael Houghton ,  Edward Joel Rovner

发明人： John Kevin Frick ,  Daniel Dean Heimsoth ,  Jon Michael Houghton ,  Edward Joel Rovner

IPC分类号： G06F1516

CPC分类号： H04L29/12018 ,  H04L12/4625 ,  H04L12/5601 ,  H04L29/12009 ,  H04L29/12811 ,  H04L49/201 ,  H04L49/351 ,  H04L61/10 ,  H04L61/301 ,  H04L61/6009 ,  H04L67/42

摘要： A data communication network includes a network client, a network server, and a name caching entity located between the network client and the network server. The network server is coupled to the data communication network by a plurality of network adapters that each have a different network (e.g., Media Access Control (MAC)) address, but share a common logical name. The name caching entity includes a name cache, which stores the common logical name shared by the server's network adapters in association with the network address of one of the network adapters. By reference to the name cache, the name caching entity is able to convert broadcast frames to unicast frames, thereby advantageously reducing broadcast frames in the network. The name caching entity will disassociate the logical name and the network address in the name cache in response to a failure to detect a frame indicating the establishment of a session with the network server within a selected interval of transmission of a frame requesting establishment of a session with the network server. In this manner, the network client can establish a session with the network server through another network adapter in cases in which the network adapter whose network address is stored in the name cache cannot support an additional session.

摘要翻译： 数据通信网络包括位于网络客户端和网络服务器之间的网络客户端，网络服务器和名称缓存实体。 网络服务器通过多个网络适配器耦合到数据通信网络，每个网络适配器各自具有不同的网络（例如，媒体访问控制（MAC））地址，但共享公共的逻辑名称。 名称缓存实体包括名称缓存，其存储由服务器的网络适配器共享的公共逻辑名与网络适配器之一的网络地址相关联。 通过参考名称缓存，名称缓存实体能够将广播帧转换为单播帧，从而有利地减少网络中的广播帧。 响应于在请求建立会话的帧的传输的所选择的间隔内检测到指示与网络服务器建立会话的帧的故障，名称缓存实体将解除名称高速缓存中的逻辑名称和网络地址的关联。 与网络服务器。 以这种方式，网络客户端可以在其网络地址存储在名称高速缓存中的网络适配器不能支持附加会话的情况下通过另一网络适配器与网络服务器建立会话。

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：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：US6104870A

公开(公告)日：2000-08-15

申请号：US109143

申请日：1998-07-02

申请人： John Kevin Frick ,  John Edward Dickey ,  John Lloyd ,  Deepak Vig ,  Edward Joel Rovner

发明人： John Kevin Frick ,  John Edward Dickey ,  John Lloyd ,  Deepak Vig ,  Edward Joel Rovner

IPC分类号： H04L12/28 ,  H04L12/56 ,  H04Q11/04 ,  G06F9/455

CPC分类号： H04Q11/0478 ,  H04L2012/5617 ,  H04L2012/5618 ,  H04L2012/5626 ,  H04L2012/5667

摘要： A method and system for improving communications in data communications networks which provide network emulation. The method and system accomplish their objects via communications equipment adapted to do the following: implant a number of distributed-redundant gateways in an emulated network; and dynamically assign access to operational distributed-redundant gateways. In one embodiment, the network emulation is an Asynchronous Transfer Mode Emulation Local Area Network (ATM ELAN), and the distributed-redundant gateways operate as default Internet Protocol (IP) gateway utilized by LAN Emulation Clients (LE Clients) of the ATM ELAN. Also in one embodiment, the dynamic assignment of access is done such that the data communications loading associated with the default IP gateway is distributed throughout a data communications network.

摘要翻译： 一种用于改善提供网络仿真的数据通信网络中的通信的方法和系统。 该方法和系统通过适于执行以下操作的通信设备完成其对象：在仿真网络中注入多个分布式冗余网关; 并动态分配对操作分布式冗余网关的访问。 在一个实施例中，网络仿真是异步传输模式仿真局域网（ATM ELAN），并且分布式冗余网关作为ATM ELAN的LAN仿真客户端（LE客户端）利用的默认互联网协议（IP）网关。 同样在一个实施例中，进行访问的动态分配，使得与默认IP网关相关联的数据通信负载分布在整个数据通信网络中。

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：US07362700B2

公开(公告)日：2008-04-22

申请号：US10184483

申请日：2002-06-27

申请人： John Kevin Frick ,  Donald B. Grosser ,  Michael D. Mroz

发明人： John Kevin Frick ,  Donald B. Grosser ,  Michael D. Mroz

IPC分类号： G06F11/00

CPC分类号： H04L45/42 ,  H04L41/0663 ,  H04L45/00 ,  H04L49/552

摘要： A method for hitless restart of layer 3 packet forwarding includes replicating some but not all state information from a master management service module to a slave management service module. The master management service module builds a layer 3 routing table by participating in layer 3 routing protocols. The layer 3 routing table is stored in memory. The master management service module builds a first layer 3 forwarding table and stores the forwarding information in hardware. A slave management service module receives a copy of the first layer 3 forwarding table from the master management service module. When the master management service module fails, the slave management service module initiates construction of a routing table by participating in layer 3 routing protocols. Packet forwarding is not interrupted because forwarding using hardware entries continues. The slave management service module links entries in the newly constructed routing table to those stored in the forwarding table.

摘要翻译： 用于第三层分组转发的无中断重启的方法包括将一些但不是全部状态信息从主管理服务模块复制到从属管理服务模块。 主管理服务模块通过参与第3层路由协议构建第3层路由表。 第3层路由表存储在内存中。 主管理服务模块构建第一层3转发表，并将转发信息存储在硬件中。 从管理服务模块从主管理服务模块接收第一层3转发表的副本。 当主管理服务模块发生故障时，从属管理服务模块通过参与第3层路由协议启动路由表的构建。 分组转发不会中断，因为使用硬件条目的转发继续。 从属管理服务模块将新构建的路由表中的条目链接到转发表中存储的路由表中。

公开(公告)号：US07269135B2

公开(公告)日：2007-09-11

申请号：US10115705

申请日：2002-04-04

申请人： John Kevin Frick ,  Cedell A. Alexander, Jr. ,  Olen Lee Stokes, Jr. ,  Charles Frederick Burton, III ,  Donald Bruce Grosser, Jr.

发明人： John Kevin Frick ,  Cedell A. Alexander, Jr. ,  Olen Lee Stokes, Jr. ,  Charles Frederick Burton, III ,  Donald Bruce Grosser, Jr.

IPC分类号： H04L12/56

CPC分类号： H04L45/28 ,  H04L43/0811 ,  H04L45/00 ,  H04L45/22 ,  H04L45/50

摘要： Methods and systems for providing redundant network connectivity across a network using a tunneling protocol by dynamically moving a TLS tunnel between master and slave switches based on relative connectivity provided by the switches are disclosed. A standby routing protocol executes on the master and slave switches to monitor the relative connectivity. In response to detecting that the relative connectivity of the slave switch exceeds that of the master switch, the standby routing protocol reverses the roles of the master and slave switches, thus moving the TLS tunnel to the new master switch.

摘要翻译： 公开了基于由交换机提供的相对连接来通过使用隧道协议通过动态地移动主交换机和从交换机之间的TLS隧道来提供跨网络的冗余网络连接的方法和系统。 备用路由协议在主交换机和从交换机上执行，以监视相对连接。 响应检测到从交换机的相对连接性超过主交换机的相对连通性，备用路由协议反转主交换机和从交换机的角色，从而将TLS隧道移动到新的主交换机。

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：US06198747B1

公开(公告)日：2001-03-06

申请号：US09016736

申请日：1998-01-30

申请人： Brian N. Bingham ,  Jackie Jackson, Jr. ,  Rosemary V. Slager ,  Deepak Vig ,  Charles A. Carriker ,  Cedell A. Alexander ,  John Kevin Frick ,  Edward J. Rovner ,  Matthew B. Squire

发明人： Brian N. Bingham ,  Jackie Jackson, Jr. ,  Rosemary V. Slager ,  Deepak Vig ,  Charles A. Carriker ,  Cedell A. Alexander ,  John Kevin Frick ,  Edward J. Rovner ,  Matthew B. Squire

IPC分类号： H04L1228

CPC分类号： H04L12/1886 ,  H04L12/4608

摘要： Provided are a method and system for use within at least one network wherein broadcast occurs. The method and system achieve their objects as follows. In response to reception of a data frame with at least one destination indicator ordinarily requiring broadcast to a first defined group of stations, at least one attribute of the received data frame is examined. In response to the step of examining, the received data frame is transmitted to a defined second group of stations, smaller in number than the first group of stations.

摘要翻译： 提供了一种用于在发生广播的至少一个网络内使用的方法和系统。 方法和系统实现其对象如下。 响应于具有通常要求广播到第一定义的站组的至少一个目的地指示符的数据帧的接收，检查所接收的数据帧的至少一个属性。 响应于检查步骤，接收的数据帧被发送到定义的第二组站，数量小于第一组站。