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41. 发明申请

US20060087965A1 Method and apparatus for forwarding data in a data communications network 有权
公开(公告)号：US20060087965A1
公开(公告)日：2006-04-27
申请号：US10976076
申请日：2004-10-27
申请人： Ian Michael Shand , Stewart Bryant , Anna Charny , Bruce Davie , George Swallow
发明人： Ian Michael Shand , Stewart Bryant , Anna Charny , Bruce Davie , George Swallow
IPC分类号： H04J3/14 , H04J1/16 , H04L12/56
CPC分类号： H04L45/00 , H04L41/0663 , H04L45/22 , H04L45/28 , H04L45/50 , H04L69/40 , H04Q3/66 , H04Q2213/13141 , H04Q2213/13145 , H04Q2213/13166 , H04Q2213/13204 , H04Q2213/13348 , H04Q2213/13389
摘要： A method of forwarding data in a data communications network having a plurality of nodes comprises the steps, performed at a repairing node, of computing the repair path around a network component to a target node and forwarding data along the repair path. The computing step comprises the step of computing an intermediate node reachable by the repairing node and from which the target node can be reached. The forwarding step includes the step of constructing a Multi-Protocol Label Switching (MPLS) packet for forwarding to the intermediate node.

42. 发明申请

US20060029080A1 Using burst tolerance values in time-based schedules 有权
标题翻译：在基于时间的计划中使用突发公差值
公开(公告)号：US20060029080A1
公开(公告)日：2006-02-09
申请号：US11070932
申请日：2005-03-03
申请人： Christopher Kappler , Anna Charny , Robert Olsen , Earl Cohen
发明人： Christopher Kappler , Anna Charny , Robert Olsen , Earl Cohen
IPC分类号： H04L12/28
CPC分类号： H04L47/6215 , H04L47/263 , H04L47/50 , H04L47/60 , Y02D50/10
摘要： Schedules may use burst tolerance values to adjust the scheduling in a time-based schedule, such as, but not limited to, adjusting for accumulated but not used bandwidth, and/or adjusting eligibility of schedule entries. A best schedule item associated with an eligible schedule entry of a schedule is identified. Whether or not a particular schedule entry is eligible is typically determined based on the relationship of an associated timestamp with a current scheduling time, such as its timestamp being less than or equal to the current time. A burst tolerance time bound might also be used to allow certain priorities and/or types of items to be considered eligible if even its timestamp exceeds the current time by an amount, but less than or equal to the burst tolerance time bound. When a schedule entry which has been dormant becomes active, its one or more timestamps are typically initialized, which may include setting at least one of these timestamps behind current time by a wakeup burst tolerance value to guarantee its immediate eligibility for one or more consecutive scheduling iterations.
摘要翻译：时间表可以使用突发容忍值来调整基于时间的时间表中的调度，例如但不限于调整累积但未使用的带宽，和/或调整调度条目的资格。识别与计划的合格日程表项相关联的最佳计划项目。通常基于相关联的时间戳与当前调度时间（例如其时间戳小于或等于当前时间）的关系来确定特定调度条目是否合格。如果即使其时间戳超过当前时间但小于或等于突发容忍时间限制，则突发公差时间限制也可用于允许某些优先级和/或类型的项目被认为是合格的。当已经休眠的调度项目变为活动时，其一个或多个时间戳通常被初始化，其可以包括将当前时间后面的这些时间戳中的至少一个设置为唤醒突发容忍值，以保证其立即符合一个或多个连续调度迭代。

43. 发明授权

US06615271B1 Traffic control system having distributed rate calculation and link flow control 失效
标题翻译：具有分布式速率计算和链路流量控制的交通控制系统
公开(公告)号：US06615271B1
公开(公告)日：2003-09-02
申请号：US09421021
申请日：1999-10-19
申请人： Anthony G. Lauck , Anna Charny , Kadangode K. Ramakrishnan
发明人： Anthony G. Lauck , Anna Charny , Kadangode K. Ramakrishnan
IPC分类号： G06F1516
CPC分类号： H04L12/5602 , H04L47/10 , H04L47/263 , H04L47/39 , H04L2012/5619 , H04L2012/563 , H04L2012/5632 , H04L2012/5634 , H04Q11/0478 , Y02D50/10
摘要： A rate based, end to end flow control system is disclosed for a communications network. The disclosed rate based flow control system includes each source end station selecting its transmission rate from a set of permitted discrete transmission rates. The set of permitted discrete transmission rates is based on a logarithmic encoding. The disclosed rate based traffic control system further requires each source end station to send one end to end control cell every time period T. The time period T is also known by switches in the communications network and is used to periodically calculate an available allocation (“fair share”) of bandwidth at a switch for a given virtual circuit.
摘要翻译：针对通信网络公开了一种基于速率的端对端流控制系统。所公开的基于速率的流量控制系统包括每个源端站从一组允许的离散传输速率中选择其传输速率。允许的离散传输速率的集合基于对数编码。所公开的基于速率的业务控制系统还要求每个源终端在每个时间段T发送一个端到端控制小区。时间段T也是通信网络中的交换机所知的，并用于周期性地计算可用分配（“ 给定虚拟电路的交换机带宽的公平共享“。

44. 发明授权

US6072772A Method for providing bandwidth and delay guarantees in a crossbar switch with speedup 失效
标题翻译：在具有加速功能的交叉开关中提供带宽和延迟保证的方法
公开(公告)号：US6072772A
公开(公告)日：2000-06-06
申请号：US005738
申请日：1998-01-12
申请人： Anna Charny , Pattabhiraman Krishna , Naimish Patel , Robert J. Simcoe
发明人： Anna Charny , Pattabhiraman Krishna , Naimish Patel , Robert J. Simcoe
IPC分类号： H04L12/70 , H04L12/931 , H04L12/933 , H04L12/935 , H04L12/937 , H04Q11/04 , G01R31/08
CPC分类号： H04L49/503 , H04L49/1576 , H04L49/205 , H04L49/254 , H04L49/3045 , H04L49/3081 , H04Q11/0478 , H04L2012/5649 , H04L2012/5679 , H04L2012/5683
摘要： An arbitration scheme for providing deterministic bandwidth and delay guarantees in an input-buffered crossbar switch with speedup S is presented. Within the framework of a crossbar architecture having a plurality of input channels and output channels, the arbitration scheme determines the sequence of fixed-size packet (or cell) transmissions between the inputs channels and outputs channels satisfying the constraint that only one cell can leave an input channel and enter an output channel per phase in such a way that the arbitration delay is bounded for each cell awaiting transmission at the input channel. If the fixed-sized packets result from fragmentation of variable size packets, the scheduling and arbitration scheme determines deterministic delay guarantees to the initial variable size packets (re-assembled at the output channel) as well.
摘要翻译：提出了一种用于在具有加速S的输入缓冲交叉开关中提供确定性带宽和延迟保证的仲裁方案。在具有多个输入通道和输出通道的交叉开关架构的框架内，仲裁方案确定输入通道之间的固定大小分组（或小区）传输的顺序，并输出满足只有一个单元可以离开输入通道，并以每个相位输入一个输出通道，使仲裁延迟对于等待输入通道传输的每个单元有界。如果固定大小的分组是由可变大小分组的分片引起的，则调度和仲裁方案也确定对初始可变大小分组的确定性延迟保证（在输出信道上重新组合）。

45. 发明授权

US5978357A Phantom flow control method and apparatus with improved stability 失效
标题翻译：具有改善稳定性的幻影流量控制方法和装置
公开(公告)号：US5978357A
公开(公告)日：1999-11-02
申请号：US826235
申请日：1997-03-27
申请人： Anna Charny
发明人： Anna Charny
IPC分类号： H04L12/56 , H04Q11/04 , G01R31/08 , G06F11/00 , G08C15/00
CPC分类号： H04L12/5695 , H04L12/5601 , H04L12/5602 , H04L47/11 , H04L47/15 , H04L47/724 , H04Q11/0478 , H04L2012/5631 , H04L2012/5632 , H04L2012/5636
摘要： A flow control method and apparatus for controlling flow through an output link in a communication network modifies a prior art Phantom flow control method by calculating the maximum allowable cell rate as a function of the number of active flows through the output link. To accomplish this, the method and apparatus calculates alpha smoothing parameters as a function of the number of virtual channels flowing through the output link. The method and apparatus improves the stability of the Phantom flow control method, and also enables it to be used with less costly network switches, such as shared memory switches.
摘要翻译：用于控制在通信网络中的输出链路的流量的流控制方法和装置通过计算作为通过输出链路的活动流的数量的函数的最大允许信元速率来修改现有技术的幻像流控制方法。为了实现这一点，该方法和装置根据流过输出链路的虚拟通道的数量来计算α平滑参数。该方法和设备提高了Phantom流量控制方法的稳定性，并且还使得它能够与较便宜的网络交换机（如共享存储交换机）一起使用。

46. 发明授权

US5956322A Phantom flow control method and apparatus 失效
标题翻译：幻影流量控制方法和装置
公开(公告)号：US5956322A
公开(公告)日：1999-09-21
申请号：US825201
申请日：1997-03-27
申请人： Anna Charny
发明人： Anna Charny
IPC分类号： H04L12/56 , H04Q11/04 , H04L12/26
CPC分类号： H04L12/5695 , H04L12/5601 , H04L12/5602 , H04L47/11 , H04L47/15 , H04L47/724 , H04Q11/0478 , H04L2012/5631 , H04L2012/5632 , H04L2012/5636
摘要： A flow control method and apparatus for controlling flow through an output link in a communication network modifies a prior art Phantom flow control method by preventing a portion of the total bandwidth of the output link from being used when the maximum allowable cell rate through that output link is calculated. Additionally, the method and apparatus calculates the alpha smoothing parameters as a function of the number of virtual channels flowing through the output link.
摘要翻译：用于控制通信网络中的输出链路的流量的流控制方法和装置通过在通过该输出链路的最大允许信元速率时防止输出链路的总带宽的一部分来修改现有技术的幻像流控制方法被计算。此外，该方法和装置根据流过输出链路的虚拟通道的数量来计算α平滑参数。

47. 发明授权

US08179902B2 Method and system for automatic generation of route distinguishers for virtual private networks 有权
标题翻译：用于虚拟专用网络路由识别器自动生成的方法和系统
公开(公告)号：US08179902B2
公开(公告)日：2012-05-15
申请号：US11182700
申请日：2005-07-15
申请人： Anna Charny , Mohammed Sayeed
发明人： Anna Charny , Mohammed Sayeed
IPC分类号： H04L12/28
CPC分类号： H04L12/4641 , H04L45/04 , H04L45/50
摘要： A method and system for automatically generating a route distinguisher for a virtual private network are disclosed. The method includes receiving a virtual private network name and rejecting the virtual private network name if the name comprises a number of bytes greater than a predefined limit. If the virtual private network name is less than the predefined limit, an algorithm is applied to automatically convert the virtual private network name to a route distinguisher for the virtual private network.
摘要翻译：公开了一种用于自动生成虚拟专用网络的路由识别器的方法和系统。该方法包括：如果该名称包括大于预定义限制的字节数，则接收虚拟专用网名称并拒绝虚拟专用网名称。如果虚拟专用网络名称小于预定义的限制，则应用一种算法将虚拟专用网络名称自动转换为虚拟专用网络的路由识别器。

48. 发明授权

US07848249B1 Method for computing FRR backup tunnels using aggregate bandwidth constraints 有权
标题翻译：使用聚合带宽约束计算FRR备份隧道的方法
公开(公告)号：US07848249B1
公开(公告)日：2010-12-07
申请号：US12218308
申请日：2008-07-14
申请人： Anna Charny , Hani El-Sakkout , Barry Richards
发明人： Anna Charny , Hani El-Sakkout , Barry Richards
IPC分类号： H04L12/24
CPC分类号： H04L47/125 , H04L43/00 , H04L45/50 , H04L47/41 , Y02D50/30
摘要： Systems and methods for estimating aggregate bandwidths of primary traffic flows are provided. Tighter upper bounds on aggregate bandwidths for arbitrary combinations of primary traffic flows may be computed. These tighter bounds are highly useful in configuring backup tunnels to protect a node in the event of failure in that the total backup bandwidth burden on individual links may be determined more accurately to permit optimal use of available backup bandwidth capacity.
摘要翻译：提供了用于估计主要业务流的聚合带宽的系统和方法。可以计算主要业务流的任意组合的聚合带宽的更紧密的上限。这些更紧密的边界在配置备份隧道以在发生故障的情况下保护节点非常有用，因为可以更精确地确定各个链路上的总备份带宽负担，以允许最佳使用可用的备份带宽容量。

49. 发明授权

US07522609B2 Propagation of minimum guaranteed scheduling rates among scheduling layers in a hierarchical schedule 有权
标题翻译：在分级调度中调度层之间的最小保证调度速率的传播
公开(公告)号：US07522609B2
公开(公告)日：2009-04-21
申请号：US11022246
申请日：2004-12-23
申请人： Earl T. Cohen , Robert Olsen , Christopher J. Kappler , Anna Charny
发明人： Earl T. Cohen , Robert Olsen , Christopher J. Kappler , Anna Charny
IPC分类号： H04L12/56
CPC分类号： H04L47/6215 , H04L47/263 , H04L47/50 , H04L47/521 , H04L47/522 , H04L47/60
摘要： Methods, apparatus, data structures, computer-readable media, and mechanisms may include or be used with a hierarchy of schedules with propagation of minimum guaranteed scheduling rates among scheduling layers in a hierarchical schedule. The minimum guaranteed scheduling rate for a parent schedule entry is typically based on the summation of the minimum guaranteed scheduling rates of its immediate child schedule entries. This propagation of minimum rate scheduling guarantees for a class of traffic can be dynamic (e.g., based on the active traffic for this class of traffic, active services for this class of traffic), or statically configured. One embodiment also includes multiple scheduling lanes for scheduling items, such as, but not limited to packets or indications thereof, such that different categories of traffic (e.g., propagated minimum guaranteed scheduling rate, non-propagated minimum guaranteed scheduling rate, high priority, excess rate, etc.) of scheduled items can be propagated through the hierarchy of schedules accordingly without being blocked behind a lower priority or different type of traffic.
摘要翻译：方法，装置，数据结构，计算机可读介质和机制可以包括或者与分级调度中的调度层中具有最小保证调度速率的传播的调度层次结合使用。父计划条目的最小保证调度速率通常基于其直接子进程表项的最小保证调度速率的总和。对一类流量的最小速率调度保证的这种传播可以是动态的（例如，基于该类流量的活动流量，用于该类流量的活动服务）或静态配置。一个实施例还包括用于调度项目的多个调度通道，诸如但不限于分组或其指示，使得不同类别的业务（例如，传播的最小保证调度速率，非传播最小保证调度速率，高优先级，超量调度项目的速率等）可以相应地通过调度层次传播，而不会被阻塞在较低优先级或不同类型的业务量之上。

50. 发明授权

US06865154B1 Method and apparatus for providing bandwidth and delay guarantees in combined input-output buffered crossbar switches that implement work-conserving arbitration algorithms 有权
标题翻译：用于实现节省工作的仲裁算法的组合输入输出缓冲交叉开关中的带宽和延迟保证的方法和装置
公开(公告)号：US06865154B1
公开(公告)日：2005-03-08
申请号：US09257725
申请日：1999-02-25
申请人： Anna Charny , Pattabhiraman Krishna , Naimish Patel
发明人： Anna Charny , Pattabhiraman Krishna , Naimish Patel
IPC分类号： H04L12/56 , H04Q11/04 , H04L12/26 , H04L12/16
CPC分类号： H04Q11/0478 , H04L49/101 , H04L49/205 , H04L49/254 , H04L49/3018 , H04L49/3027
摘要： A system is described where delay and bandwidth guarantees are implemented with a crossbar switch. A rate controller is provided as a front-end to a crossbar switch with an arbiter running a work-conserving arbitration algorithm. The system provides bandwidth and delay guarantees to all properly behaving flows independently of improperly behaving flows.
摘要翻译：描述了用交叉开关实现延迟和带宽保证的系统。速率控制器作为前端提供给交叉开关，仲裁器运行省电的仲裁算法。系统为所有正常行为的流量提供带宽和延迟保证，而与不正常行为流无关。

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