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1.发明授权Diagnostic tool and method for troubleshooting multicast connectivity flow problem(s) in a layer 2 aggregation network 有权针对第2层聚合网络中的组播连接流问题进行故障排除的诊断工具和方法公开(公告)号：US07843845B2
公开(公告)日：2010-11-30
申请号：US11469223
申请日：2006-08-31
IPC分类号： G01R31/08
CPC分类号： H04L12/185 , H04L12/1863 , H04L12/1868 , H04L41/0677 , H04L43/0811 , H04N17/004
摘要： A diagnostic tool and method are described herein that are capable of diagnosing and localizing a multicast connectivity flow fault within a layer 2 aggregation network. In one application, the diagnostic tool and method can be used by a customer service representative to diagnose why a customer cannot receive a television channel even though they can receive other television channels within an IPTV network.
摘要翻译： 本文描述了能够诊断和定位第2层聚合网络内的多播连通性流故障的诊断工具和方法。 在一个应用中，诊断工具和方法可以被客户服务代表用来诊断为什么客户不能接收电视频道，即使他们可以在IPTV网络内接收其他电视频道。
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2.发明申请公开(公告)号：US20080056254A1
公开(公告)日：2008-03-06
申请号：US11469223
申请日：2006-08-31
CPC分类号： H04L12/185 , H04L12/1863 , H04L12/1868 , H04L41/0677 , H04L43/0811 , H04N17/004
摘要： A diagnostic tool and method are described herein that are capable of diagnosing and localizing a multicast connectivity flow fault within a layer 2 aggregation network. In one application, the diagnostic tool and method can be used by a customer service representative to diagnose why a customer cannot receive a television channel even though they can receive other television channels within an IPTV network.
摘要翻译： 本文描述了能够诊断和定位第2层聚合网络内的多播连通性流故障的诊断工具和方法。 在一个应用中，诊断工具和方法可以被客户服务代表用来诊断为什么客户不能接收电视频道，即使他们可以在IPTV网络内接收其他电视频道。
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公开(公告)号：US07898982B2
公开(公告)日：2011-03-01
申请号：US11468530
申请日：2006-08-30
IPC分类号： H04L12/28
CPC分类号： H04L12/4679 , H04L12/1886 , H04L29/12292 , H04L29/12839 , H04L45/16 , H04L61/2069 , H04L61/6022
摘要： A method and system for logical group endpoint discovery in a data communication network is disclosed. A network endpoint receives from a source a request identifying a logical group and determines whether a port associated with the endpoint is a member of the logical group. If a port associated with the endpoint is a member of the logical group, the endpoint transmits to the source a reply identifying the port and the logical group. The request may be multicast while the reply may be unicast. The logical group may be a VLAN or a multicast group. The source and endpoint are preferably 802.1ag maintenance endpoints. The request may include an IEEE 802.1ag continuity check multicast address as a destination address.
摘要翻译： 公开了一种数据通信网络中逻辑组端点发现的方法和系统。 网络端点从源接收标识逻辑组的请求，并确定与端点相关联的端口是否是逻辑组的成员。 如果与端点相关联的端口是逻辑组的成员，则端点向源发送标识端口和逻辑组的应答。 该请求可以是多播的，而应答可以是单播。 逻辑组可以是VLAN或组播组。 源和端点最好是802.1ag维护端点。 该请求可以包括IEEE 802.1ag连续性检查多播地址作为目的地址。
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公开(公告)号：US20070223493A1
公开(公告)日：2007-09-27
申请号：US11468530
申请日：2006-08-30
IPC分类号： H04L12/28
CPC分类号： H04L12/4679 , H04L12/1886 , H04L29/12292 , H04L29/12839 , H04L45/16 , H04L61/2069 , H04L61/6022
摘要： A method and system for logical group endpoint discovery in a data communication network is disclosed. A network endpoint receives from a source a request identifying a logical group and determines whether a port associated with the endpoint is a member of the logical group. If a port associated with the endpoint is a member of the logical group, the endpoint transmits to the source a reply identifying the port and the logical group. The request may be multicast while the reply may be unicast. The logical group may be a VLAN or a multicast group. The source and endpoint are preferably 802.1 ag maintenance endpoints. The request may include an IEEE 802.1 ag continuity check multicast address as a destination address.
摘要翻译： 公开了一种数据通信网络中逻辑组端点发现的方法和系统。 网络端点从源接收标识逻辑组的请求，并确定与端点相关联的端口是否是逻辑组的成员。 如果与端点相关联的端口是逻辑组的成员，则端点向源发送标识端口和逻辑组的应答。 该请求可以是多播的，而应答可以是单播。 逻辑组可以是VLAN或组播组。 源和端点优选地是802.11 ag维护端点。 该请求可以包括作为目的地地址的IEEE802.1g连续性检查多播地址。
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公开(公告)号：US07865591B2
公开(公告)日：2011-01-04
申请号：US11986265
申请日：2007-11-20
IPC分类号： G06F15/173
CPC分类号： H04L61/2015
摘要： A computer-implemented method for facilitating DHCP diagnostic functionality comprises a plurality of operation. An operation is performed for identifying misconfigurations to a DHCP option configuration of a DHCP agent between a DHCP server and a client of the DHCP server. An operation is performed for confirming proper address concentration configuration with respect to the DHCP agent. An operation is performed for snooping on address assignments from the DHCP server to the client of the DHCP server to determine unauthorized ones of the address assignments.
摘要翻译： 用于促进DHCP诊断功能的计算机实现的方法包括多个操作。 执行DHCP服务器和DHCP服务器的客户端之间的DHCP代理的DHCP选项配置的错误配置操作。 执行操作以确定关于DHCP代理的适当地址浓度配置。 执行操作来窥探从DHCP服务器到DHCP服务器的客户端的地址分配，以确定未授权的地址分配。
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公开(公告)号：US20090132696A1
公开(公告)日：2009-05-21
申请号：US11986265
申请日：2007-11-20
IPC分类号： G06F15/173
CPC分类号： H04L61/2015
摘要： A computer-implemented method for facilitating DHCP diagnostic functionality comprises a plurality of operation. An operation is performed for identifying misconfigurations to a DHCP option configuration of a DHCP agent between a DHCP server and a client of the DHCP server. An operation is performed for confirming proper address concentration configuration with respect to the DHCP agent. An operation is performed for snooping on address assignments from the DHCP server to the client of the DHCP server to determine unauthorized ones of the address assignments.
摘要翻译： 用于促进DHCP诊断功能的计算机实现的方法包括多个操作。 执行DHCP服务器和DHCP服务器的客户端之间的DHCP代理的DHCP选项配置的错误配置操作。 执行操作以确定关于DHCP代理的适当地址浓度配置。 执行操作来窥探从DHCP服务器到DHCP服务器的客户端的地址分配，以确定未授权的地址分配。
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7.发明申请Bridge/Router and Method for Avoiding Packet Replication During a Failure in a Network 有权桥接/路由器以及在网络故障期间避免数据包复制的方法公开(公告)号：US20080049763A1
公开(公告)日：2008-02-28
申请号：US11466516
申请日：2006-08-23
申请人： Gerard Damm , Kamakshi Sridhar , John Coulter , Gino Dion
发明人： Gerard Damm , Kamakshi Sridhar , John Coulter , Gino Dion
IPC分类号： H04L12/56
CPC分类号： H04L45/22 , H04L12/4625 , H04L45/02 , H04L45/28 , H04L45/50
摘要： A bridge/router and method are described herein that are capable of avoiding packet replication at layer 2 where there is a failure in a network. In one embodiment, the bridge/router is informed about a fault which occurred within the network. Then, the bridge/router makes a determination about whether or not multiple LSPs would be used to flood/carry the same IP traffic out off a single port. If yes, the first bridge/router chooses one of the LSPs to carry the IP traffic out the single port and then prevents the IP traffic from being carried on the remaining LSP(s) out the single port which avoids the packet replication on a link which is associated with the single port. If no, then the first bridge/router allows the IP traffic to be carried on the LSPs out off more than one port.
摘要翻译： 这里描述了能够避免在网络中存在故障的层2处的分组复制的桥/路由器和方法。 在一个实施例中，桥接/路由器被通知在网络内发生的故障。 然后，桥/路由器确定是否将使用多个LSP来将单个端口上的相同IP流量进行泛洪/携带。 如果是，则第一个桥接器/路由器选择其中一个LSP将IP流量从单个端口携带，然后防止IP流量在单个端口上携带，从而避免链路上的数据包复制 它与单个端口相关联。 如果否，则第一个桥接器/路由器允许在多个端口上的LSP上携带IP流量。
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8.发明授权Network management system and method for performing scalable loss measurements within an access network 有权用于在接入网内执行可伸缩损耗测量的网络管理系统和方法公开(公告)号：US08102778B2
公开(公告)日：2012-01-24
申请号：US11956332
申请日：2007-12-13
申请人： Kamakshi Sridhar , Gerard Damm , Sven Ooghe
发明人： Kamakshi Sridhar , Gerard Damm , Sven Ooghe
CPC分类号： H04L12/2856 , H04L12/2878 , H04L41/044 , H04L43/0829 , H04L43/12 , H04L43/16
摘要： A network management system and a method are described herein that determine if one or more devices (e.g., consumer premises equipment(s)) are experiencing an unacceptable packet loss for downstream multicast traffic in an access network. In one embodiment, the network management system performs the following operations: (1) cause a trigger probe to be sent to the one or more devices, where each trigger probe contains information which causes the corresponding device to start a packet loss measurement; and (2) receive an unacceptable loss measurement message from one of the devices if that one device experienced packet losses over a certain period of time that exceeded a predetermined threshold which would be an indication that the one end device is experiencing an unacceptable packet loss.
摘要翻译： 本文描述了一种网络管理系统和方法，其确定一个或多个设备（例如，消费者驻地设备）是否在接入网络中经历下游多播业务的不可接受的分组丢失。 在一个实施例中，网络管理系统执行以下操作：（1）使触发探测被发送到一个或多个设备，其中每个触发探测器包含使相应设备开始分组丢失测量的信息; 如果该设备在超过预定阈值的某个时间段内经历了分组丢失，该预定阈值将是一个终端设备正在经历不可接受的分组丢失的指示，则（2）从设备之一接收不可接受的丢失测量消息。
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9.发明申请IPTV Network with D-Server Controller, VoD-Server Controller and Policy Server that Implement Diagnostic Tools 审中-公开具有D-Server控制器的IPTV网络，实现诊断工具的VoD服务器控制器和策略服务器公开(公告)号：US20090254952A1
公开(公告)日：2009-10-08
申请号：US12061525
申请日：2008-04-02
申请人： Kamakshi Sridhar , Hakki C. Cankaya , Gerard Damm
发明人： Kamakshi Sridhar , Hakki C. Cankaya , Gerard Damm
IPC分类号： H04N7/173
CPC分类号： H04N7/17336 , H04L41/0213 , H04L41/5012 , H04L41/5025 , H04L65/4084 , H04L69/40 , H04N7/17354 , H04N21/222 , H04N21/2404 , H04N21/6125 , H04N21/64322 , H04N21/6473
摘要： A D-server controller, a VoD-server controller and a policy server are described herein which implement diagnostic tools that proactively detect and prevent potential problems with different components and services in an Internet Protocol Television (IPTV) network.
摘要翻译： 本文描述了D服务器控制器，VoD服务器控制器和策略服务器，其实现主动检测和防止因特网协议电视（IPTV）网络中的不同组件和服务的潜在问题的诊断工具。
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10.发明授权Bridge/router and method for avoiding packet replication during a failure in a network 有权网络/路由器和方法，用于在网络故障期间避免数据包复制公开(公告)号：US07808887B2
公开(公告)日：2010-10-05
申请号：US11466516
申请日：2006-08-23
申请人： Gerard Damm , Kamakshi Sridhar , John Coulter , Gino Dion
发明人： Gerard Damm , Kamakshi Sridhar , John Coulter , Gino Dion
IPC分类号： H04L12/28
CPC分类号： H04L45/22 , H04L12/4625 , H04L45/02 , H04L45/28 , H04L45/50
摘要： A bridge/router and method are described herein that are capable of avoiding packet replication at layer 2 where there is a failure in a network. In one embodiment, the bridge/router is informed about a fault which occurred within the network. Then, the bridge/router makes a determination about whether or not multiple LSPs would be used to flood/carry the same IP traffic out off a single port. If yes, the first bridge/router chooses one of the LSPs to carry the IP traffic out the single port and then prevents the IP traffic from being carried on the remaining LSP(s) out the single port which avoids the packet replication on a link which is associated with the single port. If no, then the first bridge/router allows the IP traffic to be carried on the LSPs out off more than one port.
摘要翻译： 这里描述了能够避免在网络中存在故障的层2处的分组复制的桥/路由器和方法。 在一个实施例中，桥接/路由器被通知在网络内发生的故障。 然后，桥/路由器确定是否将使用多个LSP来将单个端口上的相同IP流量进行泛洪/携带。 如果是，则第一个桥接器/路由器选择其中一个LSP将IP流量从单个端口携带，然后防止IP流量在单个端口上携带，从而避免链路上的数据包复制 它与单个端口相关联。 如果否，则第一个桥接器/路由器允许在多个端口上的LSP上携带IP流量。
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