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1. 发明申请

US20120117264A1 PREVENTING QUALITY OF SERVICE POLICY ABUSE IN A NETWORK 有权
标题翻译：防止服务质量在网络中的滥用
公开(公告)号：US20120117264A1
公开(公告)日：2012-05-10
申请号：US13348559
申请日：2012-01-11
申请人： Khawar M. Zuberi
发明人： Khawar M. Zuberi
IPC分类号： G06F15/16 , H04N7/173
CPC分类号： H04L47/10 , H04L12/2805 , H04L12/2821 , H04L47/11 , H04L47/14 , H04L47/20 , H04L47/2416 , H04L47/2425 , H04L2012/2849 , H04N21/43615 , H04N21/44227
摘要： A system for preventing quality of service policy abuse comprising a media connection and a local area network prioritizing quality of service in which quality of service to a to a video receiver or similar device may be maintained by prioritizing its signal relative to other signals competing for network bandwidth.
摘要翻译：一种用于防止服务质量滥用的系统，包括媒体连接和局域网优先考虑服务质量的服务质量，其中通过将其信号相对于竞争网络的其他信号进行优先级化，可以维持对视频接收机或类似设备的服务质量带宽。

2. 发明授权

US06988268B2 IO completion architecture for user-mode networking 有权
公开(公告)号：US06988268B2
公开(公告)日：2006-01-17
申请号：US10137589
申请日：2002-04-30
申请人： Khawar M. Zuberi
发明人： Khawar M. Zuberi
IPC分类号： G06F9/46 , G06F3/00
CPC分类号： H04L69/12
摘要： A new method and framework for implementing network protocol processing utilizing a combination of application threads and a dedicated thread to process IO completions in a completion queue that automatically detects and adjusts thread priorities to alleviate manual intervention. According to the present invention, as data transfer operations are completed by the network interface, completion information identifying the data transfer operations is posted on the completion queue. The completion information is read and processed by a combination of application and dedicated threads running in the system. A method monitors performance of the system to detect whether poor processor utilization or excessive context switches occurs, in which case a different thread is used to process the completion information. In order to context switch to a different thread, the priority level of the dedicated thread is set to a HIGH level to utilize the dedicated thread or the priority level of the dedicated thread is set a LOW level to utilize an application thread.

3. 发明授权

US07693157B2 Quality of service support for A/V streams 有权
标题翻译： A / V流服务质量支持
公开(公告)号：US07693157B2
公开(公告)日：2010-04-06
申请号：US11410349
申请日：2006-04-25
申请人： Khawar M. Zuberi , Mathias Jourdain , Rajesh Sundaram
发明人： Khawar M. Zuberi , Mathias Jourdain , Rajesh Sundaram
IPC分类号： H04L12/28
CPC分类号： H04L47/2416 , H04L43/50 , H04L45/125 , H04L45/302 , H04L45/70 , H04L47/15 , H04L47/70 , H04L47/762 , H04L47/803 , H04L47/822 , H04L47/824
摘要： An access control mechanism in a network connecting one or more sink devices to a server providing audio/visual data (A/V) in streams. As a sink device requests access, the server measures available bandwidth to the sink device. If the measurement of available bandwidth is completed before the sink device requests a stream of audio/visual data, the measured available bandwidth is used to set transmission parameters of the data stream in accordance with a Quality of Service (QoS) policy. If the measurement is not completed when the data stream is requested, the data stream is nonetheless transmitted. In this scenario, the data stream may be transmitted using parameters computed using a cached measurement of the available bandwidth to the sink device. If no cached measurement is available, the data stream is transmitted with a low priority until a measurement can be made. Once the measurement is available, the transmission parameters of the data stream are re-set. With this access control mechanism, A/V streams may be provided with low latency but with transmission parameters accurately set in accordance with the QoS policy.
摘要翻译：将一个或多个宿设备连接到提供流中的音频/视频数据（A / V）的服务器的网络中的访问控制机制。作为宿设备请求访问，服务器测量宿设备的可用带宽。如果在信宿设备请求音频/视频数据流之前完成可用带宽的测量，则测量的可用带宽被用于根据服务质量（QoS）策略来设置数据流的传输参数。如果在请求数据流时测量未完成，则数据流仍然被传输。在这种情况下，可以使用使用可用带宽的缓存测量计算的参数向宿设备发送数据流。如果没有缓存测量可用，则数据流以低优先级发送，直到可以进行测量。一旦测量可用，数据流的传输参数被重新设置。利用这种访问控制机制，可以提供低延迟的A / V流，但是根据QoS策略准确地设置传输参数。

4. 发明授权

US07689674B2 Selective exclusion of LSPs on a per-packet basis 失效
标题翻译：在每个数据包的基础上选择性地排除LSP
公开(公告)号：US07689674B2
公开(公告)日：2010-03-30
申请号：US11094431
申请日：2005-03-31
申请人： Deepak Bansal , Eric B. Stenson , Khawar M. Zuberi
发明人： Deepak Bansal , Eric B. Stenson , Khawar M. Zuberi
IPC分类号： G06F15/177 , G06F15/16
CPC分类号： H04L67/34 , H04L63/0236 , H04L2463/101
摘要： A method is provided for selectively loading a layered service provider (LSP). The method includes registering at least one category for an installed LSP and registering a list of permitted categories of LSPs for an installed application. The application is then loaded, and the list of permitted categories of LSPs for the installed application is read. The installed LSP is loaded only if the at least one category is included in the list of permitted categories of LSPs.
摘要翻译：提供了一种用于选择性地加载分层服务提供商（LSP）的方法。该方法包括为已安装的LSP注册至少一个类别，并为已安装的应用注册允许的LSP类别列表。然后加载应用程序，并读取已安装应用程序所允许的LSP类别列表。仅当至少一个类别被包括在允许的LSP类别的列表中时，装载的LSP才被加载。

5. 发明授权

US07366097B2 Increasing the accuracy and efficiency of admission control for data streams 有权
标题翻译：提高数据流接纳控制的准确性和效率
公开(公告)号：US07366097B2
公开(公告)日：2008-04-29
申请号：US10689400
申请日：2003-10-20
申请人： Khawar M. Zuberi
发明人： Khawar M. Zuberi
IPC分类号： H04J1/16
CPC分类号： H04L65/4084 , H04L29/06027 , H04L47/115 , H04L47/15 , H04L47/70 , H04L47/783 , H04L47/801 , H04L47/803 , H04L47/822 , H04L47/824 , H04L65/80
摘要： The present invention extends to methods, systems, and computer program products for increasing the accuracy and efficiency of admission control for data streams. A transmitting computer system transfers a companion data stream along with a variable rate data stream to simulate the maximum data transfer of the variable rate data stream. Accordingly, active probing experiments conducted at other computer systems receive a more accurate indication of the available bandwidth (or bandwidth that may be available in the future). Computer systems can maintain admission control caches that indicate the results of previously conducted active probing experiments and the network configuration when previous data streams where admitted to a network. Computer systems can refer to an admission control cache when performing admission control to increase the efficiency of admission control. That is, an admission control decision can be made without having to conduct a complete active probing experiment.
摘要翻译：本发明扩展到方法，系统和计算机程序产品，用于提高数据流的接纳控制的准确性和效率。发射计算机系统与可变速率数据流一起传送伴随数据流，以模拟可变速率数据流的最大数据传输。因此，在其他计算机系统进行的主动探测实验可以更准确地指示可用带宽（或将来可用的带宽）。计算机系统可以维护准入控制高速缓存，其指示先前进行的主动探测实验的结果和当前进入网络的先前数据流时的网络配置。当进行准入控制以提高准入控制的效率时，计算机系统可以参考准入控制高速缓存。也就是说，可以进行准入控制决定而不必进行完整的主动探测实验。

6. 发明授权

US06658469B1 Method and system for switching between network transport providers 失效
标题翻译：网络传输提供商之间切换的方法和系统
公开(公告)号：US06658469B1
公开(公告)日：2003-12-02
申请号：US09453781
申请日：1999-12-03
申请人： Michael T. Massa , Alessandro Forin , Vadim Eydelman , Timothy M. Morre , Khawar M. Zuberi
发明人： Michael T. Massa , Alessandro Forin , Vadim Eydelman , Timothy M. Morre , Khawar M. Zuberi
IPC分类号： G06F15173
CPC分类号： H04L47/10 , G06F9/54 , H04L47/30 , H04L47/39
摘要： A method and system for directing data transfers between applications and devices residing on different computers or devices using a transport provider switch to determine whether to use a primary transport provider or one of a plurality of alternative transport providers. When an application or device requests to transfer data with another application or device, the transport provider switch detects whether the applications and devices are served by an alternative transport provider and, if so, directs that alternative transport provider to transfer the data. To improve data transfer performance, the switch employs an adaptive protocol that adapts the way data is transferred by observing when an application that is receiving data posts a receive buffer and detects the receive buffer's size. Based upon the application's or device's behavior, the switch transfers the data in a mode that is best suited for the application. A credit-based sequencing method is used to coordinate message transfers.
摘要翻译：一种用于在驻留在不同计算机或设备上的应用和设备之间使用传输提供商交换机来引导数据传输的方法和系统，以确定是使用主要传输提供商还是使用多个替代传输提供者中的一个。当应用或设备请求与其他应用或设备传输数据时，传输提供商交换机检测应用和设备是否由替代传输提供商服务，如果是，则指示该替代传输提供商传送数据。为了提高数据传输性能，交换机采用自适应协议，通过观察正在接收数据的应用程序发布接收缓冲区并检测接收缓冲区的大小来适应数据传输的方式。根据应用程序或设备的行为，交换机以最适合应用程序的模式传输数据。基于信用的排序方法用于协调消息传送。

7. 发明授权

US07979549B2 Network supporting centralized management of QoS policies 有权
标题翻译：网络支持QoS策略的集中管理
公开(公告)号：US07979549B2
公开(公告)日：2011-07-12
申请号：US11289978
申请日：2005-11-30
申请人： Dennis G. Frost , Eric K. Han , Khawar M. Zuberi , Shuangtong Feng
发明人： Dennis G. Frost , Eric K. Han , Khawar M. Zuberi , Shuangtong Feng
IPC分类号： G06F15/173 , G06F15/16 , G06F17/00
CPC分类号： H04L47/10 , H04L47/20
摘要： A computer system that implements a quality of service policy. Information defining the quality of service policy is stored in a central location, such as a server within an enterprise. Policy management software on clients in the network download quality of service policy information from the central location to the clients. Within a client, a portion of the policy information is selected based on its applicability to a particular connection. The selected information is cached with an association to the connection so that, as datagrams are generated for transmission over the network, relevant policy information is quickly accessed for use in controlling transmission characteristics of datagrams sent using that connection. Additionally, time information may be associated with information in the cache as well as policy information available from the server. Whenever a datagram is to be transmitted over a connection associated with out-of-date policy information in the cache, the cache information is updated.
摘要翻译：实现服务质量政策的计算机系统。定义服务质量策略的信息存储在中央位置，例如企业内的服务器。网络上的客户端策略管理软件从中心位置向客户端下载服务质量信息。在客户端内，根据其对特定连接的适用性来选择策略信息的一部分。所选择的信息被缓存有与连接的关联，使得由于数据报被生成用于通过网络进行传输，相关的策略信息被快速访问以用于控制使用该连接发送的数据报的传输特性。此外，时间信息可以与缓存中的信息以及从服务器可用的策略信息相关联。无论何时通过与高速缓存中的过时策略信息相关联的连接发送数据报，将更新高速缓存信息。

8. 发明申请

US20100172358A1 Quality of Service Support for A/V Streams 有权
标题翻译： A / V流服务质量支持
公开(公告)号：US20100172358A1
公开(公告)日：2010-07-08
申请号：US12724106
申请日：2010-03-15
申请人： Khawar M. Zuberi , Mathias Jourdain , Rajesh Sundaram
发明人： Khawar M. Zuberi , Mathias Jourdain , Rajesh Sundaram
IPC分类号： H04L12/28
CPC分类号： H04L47/2416 , H04L43/50 , H04L45/125 , H04L45/302 , H04L45/70 , H04L47/15 , H04L47/70 , H04L47/762 , H04L47/803 , H04L47/822 , H04L47/824
摘要： An access control mechanism in a network connecting one or more sink devices to a server providing audio/visual data (A/V) in streams. As a sink device requests access, the server measures available bandwidth to the sink device. If the measurement of available bandwidth is completed before the sink device requests a stream of audio/visual data, the measured available bandwidth is used to set transmission parameters of the data stream in accordance with a Quality of Service (QoS) policy. If the measurement is not completed when the data stream is requested, the data stream is nonetheless transmitted. In this scenario, the data stream may be transmitted using parameters computed using a cached measurement of the available bandwidth to the sink device. If no cached measurement is available, the data stream is transmitted with a low priority until a measurement can be made. Once the measurement is available, the transmission parameters of the data stream are re-set. With this access control mechanism, A/V streams may be provided with low latency but with transmission parameters accurately set in accordance with the QoS policy.
摘要翻译：将一个或多个宿设备连接到提供流中的音频/视频数据（A / V）的服务器的网络中的访问控制机制。作为宿设备请求访问，服务器测量宿设备的可用带宽。如果在信宿设备请求音频/视频数据流之前完成可用带宽的测量，则测量的可用带宽被用于根据服务质量（QoS）策略来设置数据流的传输参数。如果在请求数据流时测量未完成，则数据流仍然被传输。在这种情况下，可以使用使用可用带宽的缓存测量计算的参数向宿设备发送数据流。如果没有缓存测量可用，则数据流以低优先级发送，直到可以进行测量。一旦测量可用，数据流的传输参数被重新设置。利用这种访问控制机制，可以提供低延迟的A / V流，但是根据QoS策略准确地设置传输参数。

9. 发明授权

US07545749B2 High-accuracy packet pair for network bottleneck bandwidth measurement 有权
标题翻译：用于网络瓶颈带宽测量的高精度数据包对
公开(公告)号：US07545749B2
公开(公告)日：2009-06-09
申请号：US11058847
申请日：2005-02-15
申请人： Mathias Jourdain , Joel L. Rosenberger , Khawar M. Zuberi
发明人： Mathias Jourdain , Joel L. Rosenberger , Khawar M. Zuberi
IPC分类号： G01R31/08
CPC分类号： H04L47/10 , H04L47/115 , H04L47/283
摘要： A novel packet filtering and processing mechanism solves bandwidth estimation problems related to cross-traffic, host limitations, and fabric-specific issues in order to accurately estimate bottleneck bandwidth in fluctuating environments such as home networks. In particular, the process controls the number of packet train experiments, the size of trains and packets within trains, and other factors to eliminate errors due to cross-traffic, network capture, receiver CPU overload, interrupt moderation, and other networking factors. In an embodiment of the invention, a history window is applied to estimates derived from individual trains to ensure that data used to make a bottleneck bandwidth estimate was taken at a time when the network is relatively stable.
摘要翻译：一种新颖的包过滤和处理机制解决了与交通流量，主机限制和结构特定问题相关的带宽估计问题，以便准确估计家庭网络等波动环境中的瓶颈带宽。特别地，该过程控制分组串实验的数量，列车中的列车和分组的大小以及消除由于交叉流量，网络捕获，接收机CPU过载，中断节制和其他网络因素引起的错误的其他因素。在本发明的实施例中，将历史窗口应用于从单个列车导出的估计，以确保在网络相对稳定的时候采用用于进行瓶颈带宽估计的数据。

10. 发明授权

US07418516B2 Adaptive flow control protocol 有权
标题翻译：自适应流控制协议
公开(公告)号：US07418516B2
公开(公告)日：2008-08-26
申请号：US11248061
申请日：2005-10-12
申请人： Vadim Eydelman , Khawar M. Zuberi
发明人： Vadim Eydelman , Khawar M. Zuberi
IPC分类号： G06F15/16
CPC分类号： G06F9/546 , G06F9/54 , G06F2209/548 , H04L47/10 , H04L47/30 , H04L47/39
摘要： A method and system for directing data transfers between applications and devices residing on different computers or devices using an adaptive flow control protocol has been described. When an application or device requests to transfer data with another application or device, adaptive flow control protocol adapts the way data is transferred by observing when an application that is receiving data posts a receive buffer and detects the receive buffer's size. Based upon the application's or device's behavior, the adaptive flow control protocol transfers the data in a mode that is best suited for the application.
摘要翻译：已经描述了用于使用自适应流控制协议在驻留在不同计算机或设备上的应用和设备之间引导数据传输的方法和系统。当应用程序或设备请求与其他应用程序或设备传输数据时，自适应流控制协议通过观察正在接收数据的应用程序何时发布接收缓冲区并检测接收缓冲区的大小来调整数据传输的方式。基于应用或设备的行为，自适应流控制协议以最适合于应用的模式传输数据。

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