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1. 发明授权

US08738752B2 Local placement of large flows to assist load-balancing 有权
标题翻译：本地放置大流量以协助负载均衡
公开(公告)号：US08738752B2
公开(公告)日：2014-05-27
申请号：US12011925
申请日：2008-01-30
申请人： Anna Charny , David Tsiang , Mohammed Ismael Tatar , John Bettink , David Getchell , Clarence Filsfils
发明人： Anna Charny , David Tsiang , Mohammed Ismael Tatar , John Bettink , David Getchell , Clarence Filsfils
IPC分类号： G06F15/173 , G06F15/16 , H04L12/56
CPC分类号： H04L47/10 , H04L45/30 , H04L47/125 , H04L47/20
摘要： In one embodiment, an apparatus generally comprises one or more input interfaces for receiving a plurality of flows, a plurality of output interfaces, and a processor operable to identify large flows and select one of the output interfaces for each of the large flows to load-balance the large flows over the output interfaces. The apparatus further includes memory for storing a list of the large flows, a pinning mechanism for pinning the large flows to the selected interfaces, and a load-balance mechanism for selecting one of the output interfaces for each of the remaining flows. A method for local placement of large flows to assist in load-balancing is also disclosed.
摘要翻译：在一个实施例中，装置通常包括用于接收多个流的一个或多个输入接口，多个输出接口和可操作以识别大流量并且为每个大流量选择一个输出接口的处理器，平衡输出接口上的大流量。该装置还包括用于存储大流的列表的存储器，用于将大流锁定到所选接口的钉扎机构，以及用于为每个剩余流选择一个输出接口的负载平衡机构。还公开了用于局部放置大流量以辅助负载平衡的方法。

2. 发明授权

US08165144B2 Shaper-scheduling method and system to implement prioritized policing 有权
标题翻译：整理调度方法和系统来实施优先管理
公开(公告)号：US08165144B2
公开(公告)日：2012-04-24
申请号：US11205336
申请日：2005-08-17
申请人： Mohammed Ismael Tatar , Clarence Filsfils , John Bettink
发明人： Mohammed Ismael Tatar , Clarence Filsfils , John Bettink
IPC分类号： H04L12/28 , G01R31/08
CPC分类号： H04L47/10
摘要： A scheduling method and system for a multi-level class hierarchy are disclosed. The hierarchy includes a root node linked to at least two groups. One of the groups has priority over the other of the groups and comprises at least one high priority queue and at least one low priority queue. The method includes receiving traffic at the root node, directing traffic received at the root node to one of the groups, and directing traffic received at the priority group to one of the high priority and low priority queues. Packets are accepted at the high priority queue or the low priority queue if a specified rate is not exceeded at the high and low priority queues and at least some packets are dropped at the low priority queue if the specified rate is exceeded at the high and low priority queues.
摘要翻译：公开了一种多级类层次结构的调度方法和系统。层次结构包括链接到至少两个组的根节点。组中的一个具有优于其他组的优先级，并且包括至少一个高优先级队列和至少一个低优先级队列。该方法包括在根节点接收流量，将根节点接收到的流量指向该组中的一个，并将在优先级组中接收到的流量定向到高优先级队列和低优先级队列之一。如果在高优先级队列和低优先级队列中没有超过指定的速率，则在高优先级队列或低优先级队列中接受数据包，如果高优先级队列中指定的速率超过了低优先级队列，则至少有一些数据包被丢弃优先队列。

3. 发明申请

US20090193105A1 Local placement of large flows to assist load-balancing 有权
标题翻译：本地放置大流量以协助负载均衡
公开(公告)号：US20090193105A1
公开(公告)日：2009-07-30
申请号：US12011925
申请日：2008-01-30
申请人： Anna Charny , David Tsiang , Mohammed Ismael Tatar , John Bettink , David Getchell , Clarence Filsfils
发明人： Anna Charny , David Tsiang , Mohammed Ismael Tatar , John Bettink , David Getchell , Clarence Filsfils
IPC分类号： G06F15/173
CPC分类号： H04L47/10 , H04L45/30 , H04L47/125 , H04L47/20
摘要： In one embodiment, an apparatus generally comprises one or more input interfaces for receiving a plurality of flows, a plurality of output interfaces, and a processor operable to identify large flows and select one of the output interfaces for each of the large flows to load-balance the large flows over the output interfaces. The apparatus further includes memory for storing a list of the large flows, a pinning mechanism for pinning the large flows to the selected interfaces, and a load-balance mechanism for selecting one of the output interfaces for each of the remaining flows. A method for local placement of large flows to assist in load-balancing is also disclosed.
摘要翻译：在一个实施例中，装置通常包括用于接收多个流的一个或多个输入接口，多个输出接口和可操作以识别大流并且为每个大流量选择一个输出接口的处理器，平衡输出接口上的大流量。该装置还包括用于存储大流的列表的存储器，用于将大流锁定到所选接口的钉扎机构，以及用于为每个剩余流选择一个输出接口的负载平衡机构。还公开了用于局部放置大流量以辅助负载平衡的方法。

4. 发明授权

US08000251B2 Instrumenting packet flows 有权
标题翻译：测试数据包流
公开(公告)号：US08000251B2
公开(公告)日：2011-08-16
申请号：US11985239
申请日：2007-11-14
申请人： Garry Paul Epps , David Delano Ward , John H. W. Bettink , Christopher Yates Satterlee , Mohammed Ismael Tatar , Clarence Filsfils
发明人： Garry Paul Epps , David Delano Ward , John H. W. Bettink , Christopher Yates Satterlee , Mohammed Ismael Tatar , Clarence Filsfils
IPC分类号： H04L1/00 , H04L12/26 , H04L12/28 , H04L12/56
CPC分类号： H04L41/5009 , H04L41/5003 , H04L43/0829 , H04L43/0852 , H04L43/087 , H04L43/16
摘要： Real-time customer packet traffic is instrumented to determine measured delays between two or more points along a path actually traveled by a packet, such as within or external to one or more packet switching devices. These measurements may include delays within a packet switching device other than the ingress and egress time of a packet. These measured delays can be used to determine whether or not the performance of a packet switching device or network meets desired levels, especially for complying with a Service Level Agreement.
摘要翻译：测量实时客户数据包流量以确定沿着由分组实际行进的路径（例如在一个或多个分组交换设备之内或之外）的两个或多个点之间的测量延迟。这些测量可以包括分组交换设备内的不同于分组的入口和出口时间的延迟。这些测量的延迟可以用于确定分组交换设备或网络的性能是否满足期望的水平，特别是对于遵守服务水平协议。

5. 发明申请

US20090122805A1 Instrumenting packet flows 有权
标题翻译：测试数据包流
公开(公告)号：US20090122805A1
公开(公告)日：2009-05-14
申请号：US11985239
申请日：2007-11-14
申请人： Gary Paul Epps , David Delano Ward , John H. W. Bettink , Christopher Yates Satterlee , Mohammed Ismael Tatar , Clarence Filsfils
发明人： Gary Paul Epps , David Delano Ward , John H. W. Bettink , Christopher Yates Satterlee , Mohammed Ismael Tatar , Clarence Filsfils
IPC分类号： H04L12/56
CPC分类号： H04L41/5009 , H04L41/5003 , H04L43/0829 , H04L43/0852 , H04L43/087 , H04L43/16
摘要： Disclosed are, inter alia, methods, apparatus, computer-readable media, mechanisms, and means for instrumenting real-time customer packet traffic. These measured delays can be used to determine whether or not the performance of a packet switching device and/or network meets desired levels, especially for complying with a Service Level Agreement.
摘要翻译：公开的方法，装置，计算机可读介质，机制和装置用于实时客户分组流量的装置。这些测量的延迟可以用于确定分组交换设备和/或网络的性能是否满足期望的水平，特别是对于遵守服务水平协议。

6. 发明申请

US20130051392A1 Installing and Using a Subset of Routes for Forwarding Packets 有权
标题翻译：安装和使用用于转发数据包的路由子集
公开(公告)号：US20130051392A1
公开(公告)日：2013-02-28
申请号：US13221144
申请日：2011-08-30
申请人： Clarence Filsfils , David J. Tsiang , John H. W. Bettink , Mohammed Ismael Tatar
发明人： Clarence Filsfils , David J. Tsiang , John H. W. Bettink , Mohammed Ismael Tatar
IPC分类号： H04L12/56
CPC分类号： H04L45/025 , H04L45/04 , H04L45/54 , H04L45/748
摘要： In one embodiment, an Internet Protocol (IP) routing information base of a packet switching device is filtered to produce a significantly smaller subset of IP routes that are installed in one or more forwarding information bases for forwarding of IP packets. In one embodiment, these smaller forwarding information bases are located in memory local to a network processor to more quickly perform lookup operations thereon. In one embodiment, one or more of these forwarding information bases is used only for exact matching of addresses (not longest prefix matching). In one embodiment, the IP routes in these smaller forwarding information bases substantially correspond to packet switching devices in a network (e.g., core and edge routers), such as in contrast to including all the IP routes for devices external to the network.
摘要翻译：在一个实施例中，分组交换设备的因特网协议（IP）路由信息库被过滤以产生安装在用于转发IP分组的一个或多个转发信息库中的明显较小的IP路由子集。在一个实施例中，这些较小转发信息库位于网络处理器本地的存储器中，以更快速地执行其上的查找操作。在一个实施例中，这些转发信息库中的一个或多个仅用于地址的精确匹配（不是最长的前缀匹配）。在一个实施例中，这些较小转发信息库中的IP路由基本上对应于网络中的分组交换设备（例如，核心和边缘路由器），例如与包括网络外部设备的所有IP路由相反。

7. 发明授权

US08873409B2 Installing and using a subset of routes for forwarding packets 有权
标题翻译：安装和使用一组路由转发数据包
公开(公告)号：US08873409B2
公开(公告)日：2014-10-28
申请号：US13221144
申请日：2011-08-30
申请人： Clarence Filsfils , David J. Tsiang , John H. W. Bettink , Mohammed Ismael Tatar
发明人： Clarence Filsfils , David J. Tsiang , John H. W. Bettink , Mohammed Ismael Tatar
IPC分类号： H04L12/28 , H04L12/751 , H04L12/715 , H04L12/745 , H04L12/741
CPC分类号： H04L45/025 , H04L45/04 , H04L45/54 , H04L45/748
摘要： In one embodiment, an Internet Protocol (IP) routing information base of a packet switching device is filtered to produce a significantly smaller subset of IP routes that are installed in one or more forwarding information bases for forwarding of IP packets. In one embodiment, these smaller forwarding information bases are located in memory local to a network processor to more quickly perform lookup operations thereon. In one embodiment, one or more of these forwarding information bases is used only for exact matching of addresses (not longest prefix matching). In one embodiment, the IP routes in these smaller forwarding information bases substantially correspond to packet switching devices in a network (e.g., core and edge routers), such as in contrast to including all the IP routes for devices external to the network.
摘要翻译：在一个实施例中，分组交换设备的因特网协议（IP）路由信息库被过滤以产生安装在用于转发IP分组的一个或多个转发信息库中的明显较小的IP路由子集。在一个实施例中，这些较小转发信息库位于网络处理器本地的存储器中，以更快速地执行其上的查找操作。在一个实施例中，这些转发信息库中的一个或多个仅用于地址的精确匹配（不是最长的前缀匹配）。在一个实施例中，这些较小转发信息库中的IP路由基本上对应于网络中的分组交换设备（例如，核心和边缘路由器），例如与包括网络外部设备的所有IP路由相反。

8. 发明申请

US20140112342A1 Cascaded Communication of Serialized Data Streams Through Devices and Their Resulting Operation 有权
标题翻译：串行数据流通过设备的级联通信及其产生的操作
公开(公告)号：US20140112342A1
公开(公告)日：2014-04-24
申请号：US13658960
申请日：2012-10-24
申请人： John W. Marshall , Steven Philip Holmes , Jeffrey Nelson Shaw , Michael E. Lipman , Matthew Harper , Mohammed Ismael Tatar , James A. Markevitch
发明人： John W. Marshall , Steven Philip Holmes , Jeffrey Nelson Shaw , Michael E. Lipman , Matthew Harper , Mohammed Ismael Tatar , James A. Markevitch
IPC分类号： H04L12/56
CPC分类号： H04J3/0685 , H04J3/047
摘要： In one embodiment, an apparatus cascades groups of serialized data streams through devices, and performs operations based on information communicated therein. A received group of serialized data streams is aligned, but not framed, and forwarded to a next device (e.g., a next stage in a linear or tree cascaded formation of devices). Eliminating the framing and subsequent serialization operations performed on the received group of serialized data streams reduces the latency of communications through the cascaded devices, which can be significant when considered in relation to the high-speed communication rates. The received group of serialized data streams is also framed to create a sequence of data frames for processing (e.g., associative memory lookup operations, controlling multiplexing of received downstream serialized data streams, general or other processing) within the device.
摘要翻译：在一个实施例中，设备通过设备级联串联数据流组，并且基于在其中传达的信息执行操作。所接收的一组串行化数据流被对齐，但不被成帧，并被转发到下一个设备（例如，设备的线性或树形级联形成中的下一级）。消除对所接收的串行化数据流组执行的成帧和随后的串行化操作减少了通过级联设备的通信的延迟，当考虑高速通信速率时，这可能是重要的。接收到的串行数据流组也被成帧以创建用于处理（例如，关联存储器查找操作，控制所接收的下游串行化数据流的多路复用，通用或其它处理）的数据帧序列。

9. 发明授权

US06298038B1 Transparent transport 失效
标题翻译：透明运输
公开(公告)号：US06298038B1
公开(公告)日：2001-10-02
申请号：US08847529
申请日：1997-04-24
申请人： David Wright Martin , Mohammed Ismael Tatar , Alan Glen Solheim , Timothy James Armstrong , Mark Stephen Wight , Ronald J. Gagnon , David John Nicholson
发明人： David Wright Martin , Mohammed Ismael Tatar , Alan Glen Solheim , Timothy James Armstrong , Mark Stephen Wight , Ronald J. Gagnon , David John Nicholson
IPC分类号： H04J116
CPC分类号： H04J14/0293 , H04J3/085 , H04J3/1611 , H04J14/0227 , H04J14/0241 , H04J14/0283 , H04J2203/0057 , H04J2203/0089
摘要： A configuration for a transport node of a telecommunication system comprises a pair of transparent mux/demuxs provided at two sites and connected over a high rate span. The T-Muxs provide continuity of all tribs and maintain a lower bit rate linear or ring system through the higher bit rate span. The lower bit rate linear or ring system operates as if it were directly connected without the higher bit rate midsection. For the forward direction of the traffic, the T-Mux comprises a multi-channel receiver for receiving a the trib signals and providing for each trib signal a trib data signal and a trib OAM&P signal. The data signals are multiplexed into a supercarrier data signal and the OAM&P signals are processed to generate a supercarrier OAM&P signal. A supercarrier transmitter maps the supercarrier data signal and the supercarrier OAM&P signal into a supercarrier signal and transmits same over the high rate span. Reverse operations are effected for the reverse direction of traffic. With this invention, an entire ring system does not have to be upgraded to a higher line rate due to fiber exhaust on a single span. The invention is particularly applicable to SONET OC-48/OC-12/OC-3 linear and ring networks and the high rate span could be an OC-192 line.
摘要翻译：电信系统的传输节点的配置包括一对在两个站点处提供并且以高速率跨度连接的透明复用/解复用。 T-Muxs提供所有部落的连续性，并通过更高的比特率跨度维持较低的比特率线性或环形系统。较低比特率的线性或环形系统就像在没有较高比特率中段时直接连接一样工作。对于交通的向前方向，T-Mux包括一个多通道接收器，用于接收三维信号，并为每个信号提供一个三维数据信号和一个三维OAM＆P信号。数据信号被多路复用为超载波数据信号，并且OAM＆P信号被处理以产生超载波OAM和P信号。超载波发射机将超载波数据信号和超载波OAM＆P信号映射成超载波信号，并在高速率范围内传输。对于交通的相反方向进行反向操作。利用本发明，由于在单个跨度上的纤维排气，整个环系统不必升级到更高的线路速率。本发明特别适用于SONET OC-48 / OC-12 / OC-3线性和环形网络，高速率跨度可以是OC-192线路。

10. 发明授权

US09276867B2 Hierarchical scheduling system with layer bypass including updating scheduling information of a scheduling layer for each item whether or not it bypasses the scheduling layer 有权
标题翻译：具有层次绕组的层次调度系统，包括为每个项目更新调度层的调度信息，无论其是否绕过调度层
公开(公告)号：US09276867B2
公开(公告)日：2016-03-01
申请号：US13929779
申请日：2013-06-28
申请人： Ratan Ramchandani , Sreedhar Ravipalli , Mohammed Ismael Tatar
发明人： Ratan Ramchandani , Sreedhar Ravipalli , Mohammed Ismael Tatar
IPC分类号： G06F13/00 , H04L12/869 , H04L12/751 , H04L12/891 , H04L12/863
CPC分类号： H04L47/60 , H04L45/02 , H04L47/41 , H04L47/624
摘要： In one embodiment, a hierarchical scheduling system including multiple scheduling layers with layer bypass is used to schedule items (e.g., corresponding to packets). This scheduling of items performed in one embodiment includes: propagating first items through the hierarchical scheduling system and updating scheduling information in each of the plurality of scheduling layers based on said propagated first items as said propagated first items propagate through the plurality of scheduling layers, and bypassing one or more scheduling layers of the plurality of scheduling layers for scheduling bypassing items and updating scheduling information in each of said bypassed one or more scheduling layers based on said bypassing items. In one embodiment, this method is performed by a particular machine. In one embodiment, the operations of propagating first items through the hierarchical scheduling system and bypassing one or more scheduling layers are done in parallel.
摘要翻译：在一个实施例中，使用包括具有层旁路的多个调度层的分级调度系统来调度项目（例如，对应于分组）。在一个实施例中执行的项目的调度包括：通过分层调度系统传播第一项目，并且在所述传播的第一项目通过多个调度层传播时，基于所述传播的第一项目来更新多个调度层中的每一个中的调度信息，以及绕过所述多个调度层中的一个或多个调度层用于调度旁路项目，并基于所述旁路项目来更新每个所述旁路的一个或多个调度层中的调度信息。在一个实施例中，该方法由特定机器执行。在一个实施例中，通过分层调度系统传播第一个项目并绕过一个或多个调度层的操作是并行完成的。

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