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    Layer 3 routing loop prevention system
    2.
    发明授权
    Layer 3 routing loop prevention system 有权

    公开(公告)号：US09929937B2

    公开(公告)日：2018-03-27

    申请号：US14838008

    申请日：2015-08-27

    Applicant: Dell Products L.P.

    Inventor： Ravikumar Sivasankar ,  Ramasubramani Mahadevan ,  Karthik Krishnamurthy

    IPC: H04L12/713 ,  H04L12/46 ,  H04L12/28 ,  H04L12/705 ,  H04L12/709

    CPC classification number: H04L45/18 ,  H04L12/2865 ,  H04L12/462 ,  H04L45/245 ,  H04L45/586 ,  H04L2012/4629

    Abstract: A layer 3 routing loop prevention system includes a port extender coupled to a first and second control bridges by a Link Aggregation Group (LAG). The first and second control bridges are coupled by an interchassis link. When the first control bridge receives a packet and determines that its LAG link to the port extender is unavailable, it provides a control bridge failover identifier in the packet and performs layer 3 forwarding to send the packet to the second control bridge over the interchassis link. When the second control bridge receives the packet though the interchassis link and determines that its LAG link to the port extender is unavailable, that the packet includes the first control bridge failover identifier, and that layer 3 forwarding will result in the packet being sent back to the first control bridge device, the packet is dropped to prevent layer 3 routing loops.

    Upstream Channels for Distributed CMTS
    3.
    发明申请
    Upstream Channels for Distributed CMTS 审中-公开

    公开(公告)号：US20170346740A1

    公开(公告)日：2017-11-30

    申请号：US15604971

    申请日：2017-05-25

    Applicant: Alcatel-Lucent USA Inc.

    Inventor： Keil Brewer ,  Rajamouli Gujjari ,  Philip Winterbottom

    IPC: H04L12/801 ,  H04N21/647 ,  H04N21/61

    CPC classification number: H04L47/15 ,  H04L12/2856 ,  H04L12/2865 ,  H04N21/6168 ,  H04N21/64738

    Abstract: A novel method of operating a Distributed Cable Modem Termination System is provided. Each branch CMTS node in a distributed CMTS supports a complete CMTS system and with full-spectrum ports. One or more MAC domains are defined at each branch CMTS node. A MAC domain defined at a branch CMTS node includes only service flows of the CMs that are connected to the branch CMTS node. Identifiers of service flows coming from a branch CMTS node are always unique, i.e., two different service flows of the branch CMTS would always have different SIDs, even if they belong to different MAC domains. On the other hand, service flows belonging to different branch CMTS nodes are free to reuse the same identifiers.

    LAYER 3 ROUTING LOOP PREVENTION SYSTEM
    5.
    发明申请
    LAYER 3 ROUTING LOOP PREVENTION SYSTEM 有权
    第3层路由预防系统

    公开(公告)号：US20170063668A1

    公开(公告)日：2017-03-02

    申请号：US14838008

    申请日：2015-08-27

    Applicant: Dell Products L.P.

    Inventor： Ravikumar Sivasankar ,  Ramasubramani Mahadevan ,  Karthik Krishnamurthy

    IPC: H04L12/705 ,  H04L12/713 ,  H04L12/46 ,  H04L12/709

    CPC classification number: H04L45/18 ,  H04L12/2865 ,  H04L12/462 ,  H04L45/245 ,  H04L45/586 ,  H04L2012/4629

    Abstract: A layer 3 routing loop prevention system includes a port extender coupled to a first and second control bridges by a LAG. The first and second control bridges are coupled by an interchassis link. When the first control bridge receives a packet and determines that its LAG link to the port extender is unavailable, it provides a control bridge failover identifier in the packet and performs layer 3 forwarding to send the packet to the second control bridge over the interchassis link. When the second control bridge receives the packet though the interchassis link and determines that its LAG link to the port extender is unavailable, that the packet includes the first control bridge failover identifier, and that layer 3 forwarding will result in the packet being sent back to the first control bridge device, the packet is dropped to prevent layer 3 routing loops.

    Abstract translation: 层3路由环路防护系统包括由LAG耦合到第一和第二控制网桥的端口扩展器。 第一和第二控制桥通过机架间连接耦合。 当第一个控制网桥接收到数据包并确定其到端口扩展器的LAG链路不可用时，它在数据包中提供控制网桥故障转移标识符，并执行第3层转发，以通过机架间链路将数据包发送到第二个控制桥。 当第二控制桥通过机架间链路接收分组并确定其到端口扩展器的LAG链路不可用时，该分组包括第一控制网桥故障转移标识符，并且该层3转发将导致分组被发送回 第一个控制网桥设备，丢弃数据包以防止第3层路由环路。

    NODE-BASED QUALITY-OF-SERVICE MANAGEMENT
    6.
    发明申请
    NODE-BASED QUALITY-OF-SERVICE MANAGEMENT 审中-公开
    基于节点的质量服务管理

    公开(公告)号：US20160164803A1

    公开(公告)日：2016-06-09

    申请号：US15045674

    申请日：2016-02-17

    Applicant: Entropic Communications, Inc.

    Inventor： Zong Liang WU

    IPC: H04L12/927 ,  H04L12/28

    CPC classification number: H04L47/805 ,  H04L12/2801 ,  H04L12/2803 ,  H04L12/2809 ,  H04L12/2861 ,  H04L12/2865 ,  H04L12/2898 ,  H04L47/10

    Abstract: Systems and methods for scheduling network communications in a managed network can include a Network Controller discovering a plurality of network nodes; the Network Controller classifying the discovered network nodes into two or more classifications of node for node-level prioritization of network communications; the Network Controller receiving reservation requests from at least some of the plurality of network nodes, wherein the reservation requests request one or more time slots for their respective network nodes in an upcoming communication window; and the Network Controller assigning time slots in the upcoming communication window to one or more network nodes in response to reservation requests, wherein the assignment is based on a priority of the network nodes and wherein the priority is assigned to the nodes according to their classification.

    Abstract translation: 用于在受管网络中调度网络通信的系统和方法可以包括发现多个网络节点的网络控制器; 网络控制器将发现的网络节点分类为网络通信的节点级优先级的节点的两个或更多个分类; 所述网络控制器接收来自所述多个网络节点中的至少一些网络节点的预约请求，其中所述预约请求在即将到来的通信窗口中为其各自的网络节点请求一个或多个时隙; 以及所述网络控制器响应于预留请求将即将到来的通信窗口中的时隙分配给一个或多个网络节点，其中所述分配基于所述网络节点的优先级，并且其中所述优先级根据其分类被分配给所述节点。

    System and method for transporting digital radio signal streams in a small cell network environment
    8.
    发明授权
    System and method for transporting digital radio signal streams in a small cell network environment 有权
    用于在小型网络环境中传输数字无线电信号流的系统和方法

    公开(公告)号：US08824478B2

    公开(公告)日：2014-09-02

    申请号：US13336167

    申请日：2011-12-23

    Applicant: Kevin D. Shatzkamer ,  Ashish Dalela ,  Monique J. Morrow ,  Peter Christian Tomsu ,  Michael P. Hammer ,  Vojislav Vucetic

    Inventor： Kevin D. Shatzkamer ,  Ashish Dalela ,  Monique J. Morrow ,  Peter Christian Tomsu ,  Michael P. Hammer ,  Vojislav Vucetic

    IPC: H04L12/28

    CPC classification number: H04L69/22 ,  H04J2203/003 ,  H04J2203/0046 ,  H04L12/2865

    Abstract: A method is provided in one example embodiment that includes receiving a radio signal stream, segmenting the radio signal stream based on a control word in the radio signal stream, mapping the segmented radio signal stream to a service class, transporting the segmented radio signal stream in packets through channels over a backhaul link, and maintaining the order of the radio signal stream over the backhaul link. In more particular embodiments, the backhaul link may use a DOCSIS link, the radio signal stream can be received using a Common Public Radio Interface, and the radio signal stream may include sub-streams transported through segmented channels over the backhaul link.

    Abstract translation: 在一个示例实施例中提供了一种方法，其包括接收无线电信号流，基于无线电信号流中的控制字来分割无线电信号流，将分段的无线电信号流映射到服务类，将分段的无线电信号流传输到 通过回程链路通过信道分组，并且通过回程链路维持无线电信号流的顺序。 在更具体的实施例中，回程链路可以使用DOCSIS链路，可以使用公共无线电接口接收无线电信号流，并且无线电信号流可以包括通过回程链路通过分段信道传输的子流。

    Synchronization of communication equipment
    10.
    发明授权
    Synchronization of communication equipment 有权
    通讯设备同步

    公开(公告)号：US08711836B2

    公开(公告)日：2014-04-29

    申请号：US13003680

    申请日：2009-07-13

    Applicant: Stephen P. Cooke ,  Tino Zottola

    Inventor： Stephen P. Cooke ,  Tino Zottola

    IPC: H04J3/06

    CPC classification number: H04J3/0617 ,  H04J3/0638 ,  H04J3/0688 ,  H04L1/242 ,  H04L7/0008 ,  H04L12/2865 ,  H04L12/42 ,  H04M11/062 ,  H04Q2213/13039 ,  H04Q2213/13098 ,  H04Q2213/13106 ,  H04Q2213/1319 ,  H04Q2213/13298 ,  H04Q2213/1336 ,  H04Q2213/13389

    Abstract: Apparatus and methods relating to synchronization of communication equipment are disclosed. Synchronization information received from a bonded communication link can be used to synchronize local and/or remote communication equipment, such as femtocell sites coupled to nodes in a ring network. This may involve isolating a frequency reference signal from a DSL (Digital Subscriber Line) communication link which is a constituent link of a bonded communication link, for example. In a ring network, received synchronization information could be used in synchronizing a locally connected installation of communication equipment, and passed for transmission in the ring network for synchronizing other communication equipment. Such dropping and passing of an analog frequency reference signal could be applied in networks having other topologies as well. At least some embodiments of the invention are applicable to optical links. One or more dedicated wavelengths of an optical link could be used to transfer a frequency reference signal, for example. Other functions, such as quality monitoring, quality reporting, and/or predictive traffic forwarding may be provided in some embodiments.

    Abstract translation: 公开了与通信设备的同步相关的装置和方法。 从绑定通信链路接收的同步信息可用于同步本地和/或远程通信设备，例如耦合到环形网络中的节点的毫微微小区站点。 这可以包括例如从作为绑定通信链路的组成链路的DSL（数字用户线路）通信链路隔离频率参考信号。 在环网中，接收到的同步信息可以用于同步本地连接的通信设备的设备，并且被传递以在环网中进行传输以同步其他通信设备。 模拟频率参考信号的这种丢弃和传递也可以应用于具有其他拓扑的网络中。 本发明的至少一些实施例可应用于光链路。 例如，光链路的一个或多个专用波长可以用于传送频率参考信号。 在一些实施例中可以提供其他功能，例如质量监测，质量报告和/或预测性流量转发。

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