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    Ethernet OAM performance management
    101.
    发明授权
    Ethernet OAM performance management 有权
    以太网OAM性能管理

    公开(公告)号：US07924725B2

    公开(公告)日：2011-04-12

    申请号：US10881296

    申请日：2004-06-30

    申请人： Dinesh Mohan ,  Marc Holness

    发明人： Dinesh Mohan ,  Marc Holness

    IPC分类号： G01R31/08

    CPC分类号： H04L43/08 ,  H04L41/04 ,  H04L43/0852

    摘要： Maintenance entities may be defined between customer or provider flow points for performance management on an Ethernet network. The maintenance entities may be defined for access link, intra-domain, and inter-domain, and may be defined on a link or service basis. The maintenance entities may be used to monitor performance within a network or across networks, and may be used to monitor various performance parameters, such as frame loss, frame delay, frame delay variation, availability, errored frame seconds, service status, frame throughput, the number of frames transmitted, received or dropped, the status of a loopback interface and/or the amount of time a service has been unavailable. Several management mechanisms may be used, and the measurements may be collected using a solicited collection method, in which a responses are required and collected, or an unsolicited collection method in which a response is not required.

    摘要翻译： 可以在客户或供应商流量点之间定义维护实体，以便在以太网上进行性能管理。 维护实体可以被定义用于接入链路，域内和域间，并且可以基于链路或服务来定义。 维护实体可以用于监视网络内或跨网络的性能，并且可以用于监视各种性能参数，例如帧丢失，帧延迟，帧延迟变化，可用性，错误帧秒，服务状态，帧吞吐量， 发送，接收或丢弃的帧数，环回接口的状态和/或服务不可用的时间量。 可以使用几种管理机制，并且可以使用其中需要和收集响应的请求收集方法或者不需要响应的非请求收集方法来收集测量结果。

    Virtual burst-switching networks
    102.
    发明授权
    Virtual burst-switching networks 有权
    虚拟突发交换网络

    公开(公告)号：US07889723B2

    公开(公告)日：2011-02-15

    申请号：US12135526

    申请日：2008-06-09

    申请人： Maged E. Beshai ,  Bilel N. Jamoussi

    发明人： Maged E. Beshai ,  Bilel N. Jamoussi

    IPC分类号： H04L12/66

    CPC分类号： H04Q11/0066 ,  H04L12/56 ,  H04L45/122 ,  H04L45/124 ,  H04L45/20 ,  H04L45/302 ,  H04L45/40 ,  H04L45/62 ,  H04Q2011/0045 ,  H04Q2011/0064

    摘要： A time-shared network comprising edge nodes and optical core nodes may be dynamically divided into several embedded networks, each of which covering selected edge nodes. At least one of the edge nodes may host an embedded-network controller operable to form multiple-source flow-rate allocation requests each of the requests specifying flow-rate allocations to a plurality of paths from several source nodes to several sink nodes. A core node may also host an embedded-network controller or several embedded-network controllers. The time-shared network may use both time-division multiplexing and burst switching.

    摘要翻译： 包括边缘节点和光核心节点的时间共享网络可以被动态划分成几个嵌入式网络，每个嵌入式网络覆盖所选择的边缘节点。 至少一个边缘节点可以托管嵌入式网络控制器，其可操作以形成多个源流量分配请求，每个请求指定流量分配到从多个源节点到多个汇聚节点的多个路径。 核心节点还可以托管嵌入式网络控制器或多个嵌入式网络控制器。 时分复用网络可以同时使用时分复用和突发交换。

    RF domains
    104.
    发明授权
    RF domains 有权
    射频域

    公开(公告)号：US07773944B2

    公开(公告)日：2010-08-10

    申请号：US11145712

    申请日：2005-06-06

    申请人： Thomas Gulick

    发明人： Thomas Gulick

    IPC分类号： H04B7/00

    CPC分类号： H04W48/10 ,  H04W84/12 ,  Y02D70/142

    摘要： A wireless access point broadcasts a unique RF domain identifier for each supported service set per radio. Within a wireless local area network (“WLAN”) the RF domain identifier is unique for each supported service set, and hence identifies the service set. In addition to identifying the service sets supported by the access point, RF domain identifiers may be used to adjust transmit power in order to differentiate service sets. For example, if a first access point receives a beacon with an RF domain identifier transmitted by a second access point, the transmit power of communications associated with the service set associated with the received RF domain identifier is reduced at the first access point if that service set is also supported on the same radio by the first access point. In one embodiment the first and second access points both reduce transmit power until the beacons are no longer received by the respective nearby access point. The transmit power of communications associated with other service sets and other radios are not effected by the transmit power reduction, i.e., the access point may reduce transmit power of overlapping service set communications while contemporaneously transmitting communications of non-overlapping service sets at full power.

    摘要翻译： 无线接入点为每个无线电的每个支持的服务集广播唯一的RF域标识符。 在无线局域网（“WLAN”）中，RF域标识符对于每个受支持的服务集是唯一的，因此识别服务集。 除了识别由接入点支持的服务集之外，还可以使用RF域标识符来调整发射功率以区分服务集。 例如，如果第一接入点接收到具有由第二接入点发送的RF域标识符的信标，则在与所接收的RF域标识符相关联的服务集相关联的通信的发送功率在第一接入点被减少，如果该服务 第一个接入点也支持同一个无线电设备。 在一个实施例中，第一和第二接入点都降低发射功率，直到信标不再被相应的附近接入点接收。 与其他服务集和其他无线电相关联的通信的发射功率不受发射功率降低的影响，即，接入点可以降低重叠业务集通信的发射功率，同时以全功率发送非重叠业务集的通信。

    End-to-end IP security
    105.
    发明授权
    End-to-end IP security 有权
    端到端的IP安全

    公开(公告)号：US07739728B1

    公开(公告)日：2010-06-15

    申请号：US11329854

    申请日：2006-01-11

    申请人： Edwin Koehler, Jr. ,  Sleiman Cherif

    发明人： Edwin Koehler, Jr. ,  Sleiman Cherif

    IPC分类号： H04L9/12

    CPC分类号： H04L63/102 ,  H04L63/061 ,  H04L63/0853 ,  H04L63/164

    摘要： End-to-end security is established automatically for network communications. In one embodiment a first host is associated with a policy manager that determines, for the first host, whether a secure session is permissible. If the secure session is determined to be permissible then the policy manager signals to intermediate devices in order to prompt establishment of SA/DA pinholes. In an alternative embodiment a neutral policy broker determines, for both first and second hosts, whether the secure session is permissible and signals to the intermediate devices to establish the pinholes if the secure session is permissible. In another embodiment the end-to-end session includes back-to-back tunnel mode sessions linked by at least one intermediate device. The intermediate device is operative to decrypt and re-encrypt traffic in the session, and may be configured by a policy manager or policy broker. Further, another security association can be nested in one or more segments of the session in a manner that permits one host to access a third host or secure resource which is shielded from the second host.

    摘要翻译： 自动建立端到端安全的网络通信。 在一个实施例中，第一主机与策略管理器相关联，策略管理器为第一主机确定安全会话是否是允许的。 如果安全会话被确定为允许，则策略管理器向中间设备发信号，以便提示建立SA / DA针孔。 在替代实施例中，对于第一和第二主机，中立策略代理确定安全会话是否被允许，并且如果安全会话是允许的，则确定到中间设备的信号以建立针孔。 在另一个实施例中，端到端会话包括由至少一个中间设备链接的背对背隧道模式会话。 中间设备可操作以解密和重新加密会话中的业务，并且可以由策略管理器或策略代理进行配置。 此外，另一安全关联可以以允许一个主机访问与第二主机屏蔽的第三主机或安全资源的方式嵌套在会话的一个或多个段中。

    System, device, and method for managing alternate site switching in an optical communication system
    106.
    发明授权
    System, device, and method for managing alternate site switching in an optical communication system 失效
    用于在光通信系统中管理备用站点切换的系统，设备和方法

    公开(公告)号：US07738359B1

    公开(公告)日：2010-06-15

    申请号：US09930548

    申请日：2001-08-15

    申请人： Stephen Suryaputra ,  Indermohan S. Monga ,  Bruce A. Schofield ,  Thomas P. Hardjono

    发明人： Stephen Suryaputra ,  Indermohan S. Monga ,  Bruce A. Schofield ,  Thomas P. Hardjono

    IPC分类号： G06F11/00

    CPC分类号： H04B10/038 ,  H04J14/0227 ,  H04J14/0238 ,  H04J14/0241 ,  H04J14/0284 ,  H04L41/00 ,  H04L41/046 ,  H04L41/0893 ,  H04L41/32 ,  H04L41/5058 ,  H04L41/5077 ,  H04L45/48 ,  H04Q11/0062 ,  H04Q11/0071 ,  H04Q2011/0079 ,  H04Q2011/0081 ,  H04Q2011/0088

    摘要： A system, device, and method for managing alternate site switching in an optical communication system recovers from failures/degradations that are uncorrected by the core optical communication network. When an uncorrected failure/degradation is detected, communications for a protected end-system are switched from a primary end-system to a backup end-system. The backup end-system may be selected a priori, for example, during connection establishment, in order to reduce switching time once a decision has been made to switch communications from the primary end-system to the backup end-system. Provisions are made for completing the alternate site switching within a specified amount of time. Load balancing may be used to further reduce switching time from the primary end-system to the backup end-system. This alternate site switching augments the various protection mechanisms provided by the core optical communication network in order to provide end-to-end protection for the optical communication path.

    摘要翻译： 用于管理光通信系统中的备用站点交换的系统，设备和方法从未被核心光通信网络校正的故障/劣化中恢复。 当检测到未校正的故障/劣化时，受保护终端系统的通信从主要终端系统切换到备用终端系统。 可以先例如在连接建立期间选择备份终端系统，以便一旦决定将主从终端系统切换到备用终端系统的通信就减少了切换时间。 规定在规定的时间内完成备用场地切换。 可以使用负载平衡来进一步减少从主终端系统到备用终端系统的切换时间。 该备用站点切换增强了由核心光通信网络提供的各种保护机制，以便为光通信路径提供端到端保护。

    Latency measurement apparatus and method
    108.
    发明授权
    Latency measurement apparatus and method 有权
    延迟测量装置及方法

    公开(公告)号：US07693082B2

    公开(公告)日：2010-04-06

    申请号：US11208151

    申请日：2005-08-19

    申请人： Charles R. Wright

    发明人： Charles R. Wright

    IPC分类号： H04L12/26

    CPC分类号： H04L43/50 ,  H04B17/0087 ,  H04L43/0858 ,  H04L43/106 ,  H04W24/00

    摘要： A modular test chassis for use in testing wireless devices includes a backplane and a channel emulation module coupled to the backplane. The channel emulation module comprises circuitry for emulating the effects of a dynamic physical environment (including air, interfering signals, interfering structures, movement, etc.) on signals in the transmission channel shared by the first and second device. Different channel emulation modules may be included in the test system depending upon the protocol, network topology or capability under test. A test module may be provided to generate traffic at multiple interfaces of SISO or MIMO DUTs to enable thorough testing of device and system behavior in the presence of emulated network traffic and fault conditions. A latency measurement system and method applies timestamps frames as they are transmit and received at the test module for improved latency measurement accuracy.

    摘要翻译： 用于测试无线设备的模块化测试机箱包括耦合到背板的背板和通道仿真模块。 信道仿真模块包括用于模拟由第一和第二设备共享的传输信道中的信号的动态物理环境（包括空中，干扰信号，干扰结构，移动等）的影响的电路。 取决于协议，网络拓扑或被测能力，不同的通道仿真模块可能包含在测试系统中。 可以提供测试模块以在SISO或MIMO DUT的多个接口处产生流量，以在存在仿真的网络流量和故障条件的情况下实现设备和系统行为的彻底测试。 延迟测量系统和方法在测试模块发送和接收时应用时间戳帧，以提高延迟测量精度。

    System and method for authenticating devices in a wireless network
    109.
    发明授权
    System and method for authenticating devices in a wireless network 有权
    用于在无线网络中认证设备的系统和方法

    公开(公告)号：US07684783B1

    公开(公告)日：2010-03-23

    申请号：US10807484

    申请日：2004-03-23

    申请人： Gary Vacon ,  Floyd Backes

    发明人： Gary Vacon ,  Floyd Backes

    IPC分类号： H04M1/66 ,  H04M1/68 ,  H04M3/16

    CPC分类号： H04W12/06 ,  H04W88/02 ,  H04W88/08

    摘要： A system and method for securing communications in a wireless network includes the steps of authenticating members of the wireless network, generating a member private key to be used by the members of the wireless network, and distributing the member private key to each of the members of the wireless network. A member is authenticated based on the ability of the member to be physically proximate to at least one other member of the wireless network at a given instant. The member private key is generated by one of the members, hereinafter referred to as a master member, in response to a changing value stored at the one of the members. The member private key is then securely distributed to each of the members in the WLAN network.

    摘要翻译： 用于保护无线网络中的通信的系统和方法包括以下步骤：认证无线网络的成员，生成要由无线网络的成员使用的成员私钥，并将成员私钥分配给每个成员私有密钥 无线网络。 基于成员在给定时刻身体上接近无线网络的至少另一个成员的能力来认证成员。 响应于存储在其中一个成员处的变化值，成员私钥由成员之一（以下称为主成员）生成。 成员私钥然后被安全地分发到WLAN网络中的每个成员。

    Timestamp-based all digital phase locked loop for clock synchronization over packet networks
    110.
    发明授权
    Timestamp-based all digital phase locked loop for clock synchronization over packet networks 有权
    基于时间戳的全数字锁相环，用于通过分组网络进行时钟同步

    公开(公告)号：US07656985B1

    公开(公告)日：2010-02-02

    申请号：US11279431

    申请日：2006-04-12

    申请人： James Aweya ,  Michel Ouellette ,  Delfin Y. Montuno ,  Kent Felske

    发明人： James Aweya ,  Michel Ouellette ,  Delfin Y. Montuno ,  Kent Felske

    IPC分类号： H03D3/24

    CPC分类号： H03L7/093 ,  H03L7/0992 ,  H03L7/18 ,  H04J3/0632 ,  H04J3/0664

    摘要： A timestamp-based all digital phase locked loop is utilized for clock synchronization for Circuit Emulation Service (“CES”) over packet networks. The all digital phase locked loop at a CES receiver includes a phase detector, a loop filter, a digital oscillator and a timestamp counter. The all digital phase locked loop enables the CES receiver to synchronize a local clock at the receiver with a clock at a CES transmitter, where indications of transmitter clock signals are communicated to the receiver as timestamps. The phase detector is operable to compute an error signal indicative of differences between the timestamps and a local clock signal. The loop filter is operable to reduce jitter and noise in the error signal, and thereby produce a control signal. The digital oscillator is operable to oscillate at a frequency based at least in-part on the control signal, and thereby produce a digital oscillator output signal. The timestamp counter operable to count pulses in the digital oscillator output signal, and output the local clock signal.

    摘要翻译： 基于时间戳的全数字锁相环用于通过分组网络进行电路仿真服务（“CES”）的时钟同步。 CES接收机的全数字锁相环包括相位检测器，环路滤波器，数字振荡器和时间戳计数器。 全数字锁相环使得CES接收机能够使接收机处的本地时钟与CES发射机的时钟同步，其中发射机时钟信号的指示作为时间戳传送到接收机。 相位检测器可用于计算指示时间戳与本地时钟信号之间的差异的误差信号。 环路滤波器可操作以减少误差信号中的抖动和噪声，从而产生控制信号。 数字振荡器可操作以至少部分地基于控制信号以频率振荡，从而产生数字振荡器输出信号。 时间戳计数器可用于对数字振荡器输出信号中的脉冲进行计数，并输出本地时钟信号。