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1. 发明授权

US07843845B2 Diagnostic tool and method for troubleshooting multicast connectivity flow problem(s) in a layer 2 aggregation network 有权
标题翻译：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
申请人： Kamakshi Sridhar , Atiya Suhail , David Elie-Dit-Cosaque , Gerard Damm
发明人： Kamakshi Sridhar , Atiya Suhail , David Elie-Dit-Cosaque , Gerard Damm
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。

2. 发明申请

US20080056254A1 Diagnostic Tool and Method for Troubleshooting Multicast Connectivity Flow Problem(s) in a Layer 2 Aggregation Network 有权
标题翻译：多层连通性问题在二层聚合网络中的诊断工具和方法
公开(公告)号：US20080056254A1
公开(公告)日：2008-03-06
申请号：US11469223
申请日：2006-08-31
申请人： Kamakshi Sridhar , Atiya Suhail , David Elie-Dit-Cosaque , Gerard Damm
发明人： Kamakshi Sridhar , Atiya Suhail , David Elie-Dit-Cosaque , Gerard Damm
IPC分类号： H04J1/16 , H04L12/56 , H04J3/26
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。

3. 发明授权

US08218433B2 Monitoring connectivity in ring networks 有权
标题翻译：监控环网中的连通性
公开(公告)号：US08218433B2
公开(公告)日：2012-07-10
申请号：US12319390
申请日：2009-01-07
申请人： Kamakshi Sridhar , Atiya Suhail , David Elie-Dit-Cosaque
发明人： Kamakshi Sridhar , Atiya Suhail , David Elie-Dit-Cosaque
IPC分类号： G06F11/00 , H04L12/437 , H04L12/56
CPC分类号： H04L12/437 , H04L12/462 , H04L43/0811
摘要： A system, method, and device for monitoring the connectivity of a network that has been configured in a ring topology, such as an Ethernet ring network. The ring network includes a plurality of nodes, each with first port and a second port for forwarding CC messages to respective neighbor nodes, and an MEP for forming and processing the CC messages. Of the plurality of network nodes, neighbor nodes are selected as CC forwarding nodes and, after a database on each node has been configured, the selected nodes begin sending CC messages to each other via the ring network, beginning with transmission to a non-selected node. If a selected node fails to receive an expected CC message, it transmits a fault notification and ceases sending CC messages. The network then reselects CC message forwarding nodes, which begin forwarding CC messages until another fault is detected or the network is otherwise reconfigured.
摘要翻译：一种用于监控已在环形拓扑中配置的网络（如以太网环网）的连通性的系统，方法和设备。环网包括多个节点，每个节点具有用于将CC消息转发到各个相邻节点的第一端口和第二端口，以及用于形成和处理CC消息的MEP。在多个网络节点中，选择相邻节点作为CC转发节点，并且在配置了每个节点上的数据库之后，所选择的节点经由环网开始彼此发送CC消息，从传输开始到未选择节点。如果所选择的节点未能接收到预期的CC消息，则它发送故障通知并停止发送CC消息。网络然后重新选择CC消息转发节点，CC节点开始转发CC消息，直到检测到另一个故障或网络被重新配置为止。

4. 发明申请

US20100172245A1 Monitoring connectivity in ring networks 有权
标题翻译：监控环网中的连通性
公开(公告)号：US20100172245A1
公开(公告)日：2010-07-08
申请号：US12319390
申请日：2009-01-07
申请人： Kamakshi Sridhar , Atiya Suhail , David Elie-Dit-Cosaque
发明人： Kamakshi Sridhar , Atiya Suhail , David Elie-Dit-Cosaque
IPC分类号： G06F11/00
CPC分类号： H04L12/437 , H04L12/462 , H04L43/0811
摘要： A system, method, and device for monitoring the connectivity of a network that has been configured in a ring topology, such as an Ethernet ring network. The ring network includes a plurality of nodes, each with first port and a second port for forwarding CC messages to respective neighbor nodes, and an MEP for forming and processing the CC messages. Of the plurality of network nodes, neighbor nodes are selected as CC forwarding nodes and, after a database on each node has been configured, the selected nodes begin sending CC messages to each other via the ring network, beginning with transmission to a non-selected node. If a selected node fails to receive an expected CC message, it transmits a fault notification and ceases sending CC messages. The network then reselects CC message forwarding nodes, which begin forwarding CC messages until another fault is detected or the network is otherwise reconfigured.
摘要翻译：一种用于监控已在环形拓扑中配置的网络（如以太网环网）的连通性的系统，方法和设备。环网包括多个节点，每个节点具有用于将CC消息转发到各个相邻节点的第一端口和第二端口，以及用于形成和处理CC消息的MEP。在多个网络节点中，选择相邻节点作为CC转发节点，并且在配置了每个节点上的数据库之后，所选择的节点经由环网开始彼此发送CC消息，从传输开始到未选择节点。如果所选择的节点未能接收到预期的CC消息，则它发送故障通知并停止发送CC消息。网络然后重新选择CC消息转发节点，CC节点开始转发CC消息，直到检测到另一个故障或网络被重新配置为止。

5. 发明申请

US20070115837A1 Scalable Selective Alarm Suppression for Data Communication Network 有权
标题翻译：数据通信网络可扩展选择性报警抑制
公开(公告)号：US20070115837A1
公开(公告)日：2007-05-24
申请号：US11380825
申请日：2006-04-28
申请人： David Elie-Dit-Cosaque , Atiya Suhail , Oscar Rodriguez , Kamakshi Sridhar
发明人： David Elie-Dit-Cosaque , Atiya Suhail , Oscar Rodriguez , Kamakshi Sridhar
IPC分类号： H04J3/14
CPC分类号： H04L41/0604 , H04L41/0213 , H04L41/046
摘要： Scalable selective alarm suppression is achieved through a new class of management packet, such as a new class of Ethernet management frame, adapted to convey a reachability relationship between a lower level maintenance point and a single higher level maintenance point, and more particularly adapted to convey to a first higher level maintenance point that receives the packet an identity of a single second higher level maintenance point that will become unreachable to the first higher level maintenance point in the event of a loss of continuity involving the lower level maintenance point. Once the first higher level maintenance point has learned a totality of operative reachability relationships through receipt of such packets and is notified of a loss of continuity involving the lower level maintenance point, the first higher level maintenance point can reference the learned reachability relationships and readily determine under what circumstances it should suppress an alarm in response to a detected loss of continuity with a higher level maintenance point.
摘要翻译：可扩展的选择性报警抑制是通过一类新的管理数据包实现的，例如一类新的以太网管理帧，适用于传达较低级维护点和单个较高维护点之间的可达性关系，特别适用于传达到达第一较高级别的维护点，其在丢失涉及较低级别维护点的连续性的情况下接收到将变为不可达到第一较高级别维护点的单个第二较高级别维护点的标识的分组。一旦第一个较高级别的维护点通过接收到这样的数据包已经获得了全面的可操作性可达性关系，并且通知涉及较低级别维护点的连续性损失，则第一个较高级别的维护点可以引用学习的可达性关系并容易地确定在什么情况下，应该根据检测到的上级维修点的连续性损失来抑制报警。

6. 发明授权

US07929455B2 Bridge and method for optimization of memory for Ethernet OAM multicast frames 有权
标题翻译：用于以太网OAM组播帧的存储器优化的桥接和方法
公开(公告)号：US07929455B2
公开(公告)日：2011-04-19
申请号：US11776655
申请日：2007-07-12
申请人： Atiya Suhail , Kamakshi Sridhar , David Elie-Dit-Cosaque , Roberto Guglielmi
发明人： Atiya Suhail , Kamakshi Sridhar , David Elie-Dit-Cosaque , Roberto Guglielmi
IPC分类号： H04L12/26
CPC分类号： H04L12/4625 , H04L12/40091 , H04L12/4641
摘要： A bridge (EthOAM device) and method are described herein where the bridge implements the method and reduces a number of static entries (pre-defined multicast MAC addresses) which need to be configured within a database (e.g., forwarding database (FDB)) to support the flow of Ethernet OAM multicast frames such as, for example, Connectivity Check (CC) frames and Link Trace (LT) frames which are used in accordance with the IEEE 802.1ag standard.
摘要翻译：本文描述了桥接器（EthOAM设备）和方法，其中桥接器实现该方法并且减少需要在数据库内配置的静态条目（预定义的多播MAC地址）的数量（例如，转发数据库（FDB））到支持以太网OAM组播帧的流程，例如根据IEEE 802.1ag标准使用的连通性检查（CC）帧和链路跟踪（LT）帧。

7. 发明申请

US20100165831A1 Load balancing and fault protection in aggregation networks 有权
标题翻译：聚合网络中的负载均衡和故障保护
公开(公告)号：US20100165831A1
公开(公告)日：2010-07-01
申请号：US12317891
申请日：2008-12-30
申请人： David Elie-Dit-Cosaque , Atiya Suhail , Kamakshi Sridhar
发明人： David Elie-Dit-Cosaque , Atiya Suhail , Kamakshi Sridhar
IPC分类号： H04J1/16 , H04L12/28 , H04L12/26
CPC分类号： H04L12/4625 , H04L12/40006 , H04L12/433 , H04L12/4641 , H04L12/4645 , H04L12/467 , H04W92/04
摘要： A system, device, and method for aggregating traffic in a network, such as for wireless backhaul traffic in a cellular communication system. UE device traffic is sent to and from an access bridge, which is one node in an access network formed into a ring topology, and from the access bridge to a core bridge in communication with a core network of the communication system. According to a preferred embodiment, the access bridge and the core bridge each have a LAG component configured according to IEEE 802.1D and IEEE 802.3-2005, and a ring component configured according to IEEE 802.1Q or 802.1AD. In operation, this LAG component load balances communication traffic coming into the bridge node onto one of two VLANs formed of portions of the access network ring. In the event of a fault condition affecting one of the two VLANs, the fault VLAN is removed from the aggregation scheme until the fault condition is alleviated.
摘要翻译：用于聚合网络中的业务的系统，设备和方法，例如用于蜂窝通信系统中的无线回程业务。 UE设备流量从作为形成环形拓扑的接入网络中的一个节点的接入桥发送到与通信系统的核心网络通信的核心桥。根据优选实施例，接入桥和核心桥均具有根据IEEE 802.1D和IEEE 802.3-2005配置的LAG组件，以及根据IEEE 802.1Q或802.1AD配置的环组件。在操作中，该LAG组件将进入网桥节点的通信流量平衡到由接入网络环的部分形成的两个VLAN中的一个上。如果发生故障，影响到两个VLAN之一，故障VLAN将从聚合方案中移除，直到故障状态得到缓解。

8. 发明授权

US07697440B2 Scalable selective alarm suppression for data communication network 有权
标题翻译：可扩展的数据通信网络选择性报警抑制
公开(公告)号：US07697440B2
公开(公告)日：2010-04-13
申请号：US11380825
申请日：2006-04-28
申请人： David Elie-Dit-Cosaque , Atiya Suhail , Oscar Rodriguez , Kamakshi Sridhar
发明人： David Elie-Dit-Cosaque , Atiya Suhail , Oscar Rodriguez , Kamakshi Sridhar
IPC分类号： H04L12/26
CPC分类号： H04L41/0604 , H04L41/0213 , H04L41/046
摘要： Scalable selective alarm suppression is achieved through a new class of management packet, such as a new class of Ethernet management frame, adapted to convey a reachability relationship between a lower level maintenance point and a single higher level maintenance point, and more particularly adapted to convey to a first higher level maintenance point that receives the packet an identity of a single second higher level maintenance point that will become unreachable to the first higher level maintenance point in the event of a loss of continuity involving the lower level maintenance point. Once the first higher level maintenance point has learned a totality of operative reachability relationships through receipt of such packets and is notified of a loss of continuity involving the lower level maintenance point, the first higher level maintenance point can reference the learned reachability relationships and readily determine under what circumstances it should suppress an alarm in response to a detected loss of continuity with a higher level maintenance point.
摘要翻译：可扩展的选择性报警抑制是通过一类新的管理数据包实现的，例如一类新的以太网管理帧，适用于传达较低级别的维护点和单个较高级维护点之间的可达性关系，更具体地说是适应于传达到达第一较高级别的维护点，其在丢失涉及较低级别维护点的连续性的情况下接收到将变为不可达到第一较高级别维护点的单个第二较高级别维护点的标识的分组。一旦第一个较高级别的维护点通过接收到这样的数据包已经获得了全面的可操作性可达性关系，并且通知涉及较低级别维护点的连续性损失，则第一个较高级别的维护点可以引用学习的可达性关系并容易地确定在什么情况下，应该根据检测到的上级维修点的连续性损失来抑制报警。

9. 发明申请

US20080151780A1 Bridge and Method for Optimization of Memory for Ethernet OAM Multicast Frames 有权
标题翻译：用于优化以太网OAM组播帧的网桥和方法
公开(公告)号：US20080151780A1
公开(公告)日：2008-06-26
申请号：US11776655
申请日：2007-07-12
申请人： Atiya Suhail , Kamakshi Sridhar , David Elie-Dit-Cosaque , Roberto Guglielmi
发明人： Atiya Suhail , Kamakshi Sridhar , David Elie-Dit-Cosaque , Roberto Guglielmi
IPC分类号： H04L12/66 , H04L12/28 , H04L12/56
CPC分类号： H04L12/4625 , H04L12/40091 , H04L12/4641
摘要： A bridge (EthOAM device) and method are described herein where the bridge implements the method and reduces a number of static entries (pre-defined multicast MAC addresses) which need to be configured within a database (e.g., forwarding database (FDB)) to support the flow of Ethernet OAM multicast frames such as, for example, Connectivity Check (CC) frames and Link Trace (LT) frames which are used in accordance with the IEEE 802.1ag standard.
摘要翻译：本文描述了桥接器（EthOAM设备）和方法，其中桥接器实现该方法并且减少需要在数据库内配置的静态条目（预定义的多播MAC地址）的数量（例如，转发数据库（FDB））到支持以太网OAM组播帧的流程，例如根据IEEE 802.1ag标准使用的连通性检查（CC）帧和链路跟踪（LT）帧。

10. 发明授权

US07898982B2 Logical group endpoint discovery for data communication network 有权
标题翻译：数据通信网络的逻辑组端点发现
公开(公告)号：US07898982B2
公开(公告)日：2011-03-01
申请号：US11468530
申请日：2006-08-30
申请人： Kamakshi Sridhar , David Elie-Dit-Cosaque , Gerard Damm
发明人： Kamakshi Sridhar , David Elie-Dit-Cosaque , Gerard Damm
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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