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    Systems and methods for Connectivity Fault Management extensions for automated activation of services through association of service related attributes
    3.
    发明授权
    Systems and methods for Connectivity Fault Management extensions for automated activation of services through association of service related attributes 有权
    用于连接故障管理扩展的系统和方法，用于通过关联服务相关属性来自动激活服务

    公开(公告)号：US08184526B2

    公开(公告)日：2012-05-22

    申请号：US12559888

    申请日：2009-09-15

    申请人： Ian Duncan ,  Daniel Rivaud ,  Raghuraman Ranganathan

    发明人： Ian Duncan ,  Daniel Rivaud ,  Raghuraman Ranganathan

    IPC分类号： G01R31/08

    CPC分类号： H04L12/4633 ,  H04L43/0811

    摘要： The present disclosure provides systems and methods for Ethernet Connectivity Fault Management (CFM) extensions to provide a CFM messaging mechanism for support of information exchange and the like, in addition to end-to-end connectivity and fault management. In an exemplary embodiment, the present invention utilizes CFM extensions to provide Pseudowire (PW) MAC addressing. Here, the present invention can enable the exchanging of MAC addresses and other attributes for PDH pseudowire transport. Advantageously, this avoids involving the OSS/EMS/NMS in pre-provisioning these necessary but arbitrary attributes across the network elements supporting a pseudowire service. Also, the present invention can be extended to support numerous other applications involving sharing of attributes between nodes over the extensions provided herein.

    摘要翻译： 本公开提供了用于以太网连接故障管理（CFM）扩展的系统和方法，以提供用于支持信息交换等的CFM消息传递机制，以及端到端连接和故障管理。 在示例性实施例中，本发明利用CFM扩展来提供伪线（PW）MAC寻址。 这里，本发明能够实现用于PDH伪线传输的MAC地址和其他属性的交换。 有利地，这避免了涉及OSS / EMS / NMS在支持伪线服务的网络元件中预先提供这些必需但是任意的属性。 此外，本发明可以被扩展以支持涉及通过本文提供的扩展在节点之间共享属性的许多其他应用。

    SYSTEMS AND METHODS FOR A SELF-HEALING CARRIER ETHERNET TOPOLOGY
    4.
    发明申请
    SYSTEMS AND METHODS FOR A SELF-HEALING CARRIER ETHERNET TOPOLOGY 有权
    自我承载载体以太网拓扑学的系统和方法

    公开(公告)号：US20090073988A1

    公开(公告)日：2009-03-19

    申请号：US11855596

    申请日：2007-09-14

    申请人： Morteza Ghodrat ,  Michael Gazier ,  Ian Duncan

    发明人： Morteza Ghodrat ,  Michael Gazier ,  Ian Duncan

    IPC分类号： H04L12/56

    CPC分类号： H04L45/00 ,  H04L1/22 ,  H04L12/4641 ,  H04L43/0811 ,  H04L43/10 ,  H04L45/22 ,  H04L45/28

    摘要： Systems and methods for self-healing Ethernet topologies which are compatible with PBT, which use standards-based protocols, which do not self-configure, and which use Ethernet OAM are provided. Interconnected nodes are configured with a primary and secondary path which is determined by VLANs, MPLS label, Provider Backbone Bridge Traffic Engineering (PBB-TE) VLAN ID (VID), Frame Relay (FR), Asynchronous Transfer Mode (ATM) Virtual Circuits (VCs), and the like. One or more head-end nodes are designated for terminating each path and for performing cross-connects between the primary and secondary paths. IEEE 802.1ag Continuity Check Messages (CCM) are transmitted by all nodes on both the primary and secondary routes. Responsive to a loss of a predetermined number of CCM messages, traffic is switched to the secondary route. In non-fault conditions, both the paths for the primary and secondary routes can carry traffic.

    摘要翻译： 提供了自修复以太网拓扑的系统和方法，与使用基于标准的协议（不使用自配置）和使用以太网OAM的PBT兼容。 互连节点配置有由VLAN，MPLS标签，提供商骨干桥流量工程（PBB-TE）VLAN ID（VID），帧中继（FR），异步传输模式（ATM）虚拟电路（ATM） VC）等。 指定一个或多个头端节点用于终止每个路径并且用于执行主路径和次路径之间的交叉连接。 IEEE 802.1ag连续性检查消息（CCM）由主要和次要路由上的所有节点传输。 响应于预定数量的CCM消息的丢失，业务被切换到次要路由。 在非故障条件下，主路由和副路由都可以承载流量。

    Systems and methods for a self-healing carrier ethernet topology
    6.
    发明授权
    Systems and methods for a self-healing carrier ethernet topology 有权
    自愈式载体以太网拓扑的系统和方法

    公开(公告)号：US08305884B2

    公开(公告)日：2012-11-06

    申请号：US11855596

    申请日：2007-09-14

    申请人： Morteza Ghodrat ,  Michael Gazier ,  Ian Duncan

    发明人： Morteza Ghodrat ,  Michael Gazier ,  Ian Duncan

    IPC分类号： G01R31/08 ,  G06F11/00 ,  G08C15/00

    CPC分类号： H04L45/00 ,  H04L1/22 ,  H04L12/4641 ,  H04L43/0811 ,  H04L43/10 ,  H04L45/22 ,  H04L45/28

    摘要： Systems and methods for self-healing Ethernet topologies which are compatible with PBT, which use standards-based protocols, which do not self-configure, and which use Ethernet OAM are provided. Interconnected nodes are configured with a primary and secondary path which is determined by VLANs, MPLS label, Provider Backbone Bridge Traffic Engineering (PBB-TE) VLAN ID (VID), Frame Relay (FR), Asynchronous Transfer Mode (ATM) Virtual Circuits (VCs), and the like. One or more head-end nodes are designated for terminating each path and for performing cross-connects between the primary and secondary paths. IEEE 802.1ag Continuity Check Messages (CCM) are transmitted by all nodes on both the primary and secondary routes. Responsive to a loss of a predetermined number of CCM messages, traffic is switched to the secondary route. In non-fault conditions, both the paths for the primary and secondary routes can carry traffic.

    摘要翻译： 提供了自修复以太网拓扑的系统和方法，与使用基于标准的协议（不使用自配置）和使用以太网OAM的PBT兼容。 互连节点配置有由VLAN，MPLS标签，提供商骨干桥流量工程（PBB-TE）VLAN ID（VID），帧中继（FR），异步传输模式（ATM）虚拟电路（ATM） VC）等。 指定一个或多个头端节点用于终止每个路径并且用于执行主路径和次路径之间的交叉连接。 IEEE 802.1ag连续性检查消息（CCM）由主要和次要路由上的所有节点传输。 响应于预定数量的CCM消息的丢失，业务被切换到次要路由。 在非故障条件下，主路由和副路由都可以承载流量。

    SYSTEMS AND METHODS FOR CARRIER ETHERNET USING REFERENTIAL TABLES FOR FORWARDING DECISIONS
    7.
    发明申请
    SYSTEMS AND METHODS FOR CARRIER ETHERNET USING REFERENTIAL TABLES FOR FORWARDING DECISIONS 有权
    使用参考表进行决策的运营商以太网的系统和方法

    公开(公告)号：US20090141703A1

    公开(公告)日：2009-06-04

    申请号：US11947996

    申请日：2007-11-30

    申请人： Morteza Ghodrat ,  Michael Gazier ,  Ian Duncan

    发明人： Morteza Ghodrat ,  Michael Gazier ,  Ian Duncan

    IPC分类号： H04L12/28

    CPC分类号： H04L12/4641 ,  H04L45/00 ,  H04L45/66 ,  H04L47/10 ,  H04L47/20 ,  H04L47/22 ,  H04L47/2441 ,  H04L49/3009 ,  H04L49/354

    摘要： The present invention utilizes specific referential tables for forwarding decisions while maintaining current mechanisms of Ethernet addressing and QoS marking. The referential tables are utilized for forwarding decisions based on any and/or multiple fields within the packets simultaneously, such as, for example, incoming port number, incoming MAC, incoming VLAN, outgoing MAC, outgoing VLAN, P-bits, DSCP, MPLS label, TCP/UDP port numbers, IP, SIP, HTTP, and the like. A user can define the forwarding criteria based on any combination/permutation fields in the packet. Advantageously, the present invention removes the need to introduce explicit tunnel labels in the Ethernet frame in order to maintain the desired QoS within the network removing explicit labeling requirements.

    摘要翻译： 本发明利用特定的参考表来转发决策，同时保持以太网寻址和QoS标记的当前机制。 参考表用于基于分组内的任何和/或多个字段的转发决策，例如进入端口号，入局MAC，入局VLAN，出局MAC，出局VLAN，P比特，DSCP，MPLS 标签，TCP / UDP端口号，IP，SIP，HTTP等。 用户可以基于分组中的任何组合/置换字段定义转发标准。 有利地，本发明消除了在以太网帧中引入显式隧道标签的需要，以便在网络内维持期望的QoS去除明确的标签要求。

    Method and apparatus for the fast detection of connectivity loss between devices in a network
    8.
    发明授权
    Method and apparatus for the fast detection of connectivity loss between devices in a network 失效
    用于快速检测网络中设备之间的连接性损失的方法和装置

    公开(公告)号：US08396950B1

    公开(公告)日：2013-03-12

    申请号：US09794317

    申请日：2001-02-27

    申请人： Haldon Sandick ,  Matthew Squire ,  Bradley Cain ,  Ian Duncan ,  Brian Haberman

    发明人： Haldon Sandick ,  Matthew Squire ,  Bradley Cain ,  Ian Duncan ,  Brian Haberman

    IPC分类号： G06F15/16 ,  G06F15/173

    CPC分类号： H04L65/1069 ,  H04L41/00 ,  H04L43/0811 ,  H04L45/02 ,  H04L45/026 ,  H04L47/125

    摘要： A method and apparatus for quickly determining the status of a network device in a network communicates status inquiry messages over the forwarding plane of one network device to at least one neighboring network device. The status inquiry messages indicate the connectivity status with at least one neighboring device. The status inquiry messages are transmitted periodically to the at least one neighboring device. In addition, the network device may communicate an advertisement message over the control plane to discover the at least one neighboring network device prior to the communication of the status inquiry messages over the forwarding plane. The network devices may negotiate communication parameters for the exchange of status inquiry messages with the at least one network device.

    摘要翻译： 用于快速确定网络中的网络设备的状态的方法和装置通过一个网络设备的转发平面向至少一个相邻网络设备传送状态查询消息。 状态查询消息指示与至少一个相邻设备的连接状态。 状态询问消息被周期性地发送到至少一个相邻设备。 此外，网络设备可以通过控制平面传送广告消息，以便在通过转发平面通信状态查询消息之前发现至少一个相邻网络设备。 网络设备可以协商用于与至少一个网络设备交换状态查询消息的通信参数。