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1. 发明授权

US07380006B2 Method for automatic tuning of TCP receive window based on a determined bandwidth 有权
标题翻译：基于确定的带宽自动调整TCP接收窗口的方法
公开(公告)号：US07380006B2
公开(公告)日：2008-05-27
申请号：US09736988
申请日：2000-12-14
申请人： Nk Srinivas , Art Shelest , Peter S. Ford
发明人： Nk Srinivas , Art Shelest , Peter S. Ford
IPC分类号： G06F15/16 , G06F15/173
CPC分类号： H04L47/27 , H04L1/1832 , H04L47/10 , H04L47/193 , H04L69/16 , H04L69/163
摘要： A method and system are directed at automatically tuning a TCP receive window (RWIN). The size of the RWIN may be determined by attributes of a network card. One attribute used to size the RWIN is the speed of the adapter card. The adapter speed is readily available by polling the network card. Once the speed is known, the size of the RWIN is selected from a table and is automatically set. Alternatively, the size of the RWIN may be determined by a formula.
摘要翻译：方法和系统针对自动调整TCP接收窗口（RWIN）。 RWIN的大小可以由网卡的属性确定。用于调整RWIN大小的一个属性是适配卡的速度。适配器速度可以通过轮询网卡来获得。一旦知道速度，就从表中选择RWIN的大小，并自动设置。或者，RWIN的大小可以由公式确定。

2. 发明授权

US07503068B2 Secure ISN generation 有权
标题翻译：安全的ISN生成
公开(公告)号：US07503068B2
公开(公告)日：2009-03-10
申请号：US10779950
申请日：2004-02-13
申请人： Sanjay Kaniyar , Art Shelest , Nk Srinivas , Scott K. Holden
发明人： Sanjay Kaniyar , Art Shelest , Nk Srinivas , Scott K. Holden
IPC分类号： H04L9/00
CPC分类号： H04L47/34 , H04L63/1458
摘要： An initial sequence number generator is provided that prevents the local server from being attacked while maintaining reliable data transfer. A random intermediate value is created that is unique to each connection identifier and is combined with a random value created from a global counter to generate the initial sequence number. The counter capable of monotonically increasing by both a fixed and variable amount for ensuring that the same connection identifier does not have data collisions from competing sequence numbers within a predetermined period of time, and also to ensures randomness of the initial sequence number on a per connection basis for preventing attacks on the local server.
摘要翻译：提供了初始序列号生成器，其防止本地服务器在保持可靠的数据传输的同时受到攻击。创建对每个连接标识符唯一的随机中间值，并与从全局计数器创建的随机值组合以生成初始序列号。该计数器能够通过固定和可变量单调增加，以确保相同的连接标识符在预定时间段内没有来自竞争序列号的数据冲突，并且还确保每个连接上的初始序列号的随机性防止对本地服务器的攻击的基础。

3. 发明授权

US06745360B1 Method and system for controlling the rate of acknowledgment of communication packets 有权
标题翻译：控制通信包确认速率的方法和系统
公开(公告)号：US06745360B1
公开(公告)日：2004-06-01
申请号：US09548712
申请日：2000-04-13
申请人： Nk Srinivas , Art Shelest
发明人： Nk Srinivas , Art Shelest
IPC分类号： H04L116
CPC分类号： H04L1/1671 , H04L1/1685 , H04L29/06 , H04L69/16 , H04L69/163
摘要： A method and system for controlling the rate of acknowledgment of communication packets is provided in which a sender determines whether or not an acknowledgment is required from a receiver, and if an acknowledgment is required, transmits a packet that is marked to indicate that an acknowledgment is required. There are many different ways in which a packet may be marked, including generating the packet so that it is shorter than a standard length, inserting an optional field, or inserting a value into the packet header. When TCP is being used for communication, the TCP segments may be marked by clearing the ACK bit of the TCP header. Two or more computers that are engaged in or about to engage in packet-based communication may also inform one another of their respective abilities to send and receive marked packets by transmitting capability packets to one another.
摘要翻译：提供了一种用于控制通信分组的确认速率的方法和系统，其中发送方确定是否需要来自接收方的确认，并且如果需要确认，则发送标记为指示确认为需要。可以有许多不同的方式来标记分组，包括生成分组，使得它比标准长度短，插入可选字段，或者在分组报头中插入一个值。当TCP用于通信时，可以通过清除TCP报头的ACK位来标记TCP段。从事或即将进行基于分组的通信的两台或多台计算机也可以通过彼此发送和接收标记的分组的能力彼此通知彼此的能力分组。

4. 发明申请

US20050198509A1 Secure ISN generation 有权
标题翻译：安全的ISN生成
公开(公告)号：US20050198509A1
公开(公告)日：2005-09-08
申请号：US10779950
申请日：2004-02-13
申请人： Sanjay Kaniyar , Art Shelest , Nk Srinivas , Scott Holden
发明人： Sanjay Kaniyar , Art Shelest , Nk Srinivas , Scott Holden
IPC分类号： H04L9/00
CPC分类号： H04L47/34 , H04L63/1458
摘要： An initial sequence number generator is provided that prevents the local server from being attacked while maintaining reliable data transfer. A random intermediate value is created that is unique to each connection identifier and is combined with a random value created from a global counter to generate the initial sequence number. The counter capable of monotonically increasing by both a fixed and variable amount for ensuring that the same connection identifier does not have data collisions from competing sequence numbers within a predetermined period of time, and also to ensures randomness of the initial sequence number on a per connection basis for preventing attacks on the local server.
摘要翻译：提供了初始序列号生成器，其防止本地服务器在保持可靠的数据传输的同时受到攻击。创建对每个连接标识符唯一的随机中间值，并与从全局计数器创建的随机值组合以生成初始序列号。该计数器能够通过固定和可变量单调增加，以确保相同的连接标识符在预定时间段内没有来自竞争序列号的数据冲突，并且还确保每个连接上的初始序列号的随机性防止对本地服务器的攻击的基础。

5. 发明申请

US20070234305A1 Tracing errors in software 失效
标题翻译：跟踪软件中的错误
公开(公告)号：US20070234305A1
公开(公告)日：2007-10-04
申请号：US11318215
申请日：2005-12-23
申请人： Rajat Mishra , Nk Srinivas , Alan Jowett
发明人： Rajat Mishra , Nk Srinivas , Alan Jowett
IPC分类号： G06F9/44
CPC分类号： G06F11/3676 , G06F8/43 , G06F11/3604 , G06F11/3616
摘要： An error tracing analysis tool applies static code analysis to software source code to identify error paths in the code and determine how many of these error paths have trace statements.
摘要翻译：错误跟踪分析工具将静态代码分析应用于软件源代码，以识别代码中的错误路径，并确定这些错误路径中有多少具有跟踪语句。

6. 发明授权

US07024481B2 Method and framework for processing network communication protocol timers 失效
公开(公告)号：US07024481B2
公开(公告)日：2006-04-04
申请号：US09999132
申请日：2001-11-01
申请人： Sanjay N. Kaniyar , Nk Srinivas , Abolade Gbadegesin , Shaun D. Cox , Bhupinder S. Sethi
发明人： Sanjay N. Kaniyar , Nk Srinivas , Abolade Gbadegesin , Shaun D. Cox , Bhupinder S. Sethi
IPC分类号： G06F15/16
CPC分类号： H04L69/28 , H04L69/16 , H04L69/163
摘要： A new communications connection timer management framework for handling network communications protocol timers is disclosed. The timer management framework separates transmission control blocks (TCBs) having scheduled actions from the set of all TCBs maintained by a server. The TCBs having scheduled actions are referenced by a time-space partitioned data structure having time-slots corresponding to a current protocol timer “tick” value. The active TCBs are placed within particular ones of the time-space partitions based upon their expiration times. During each timer check sequence (e.g., once every 100 millisecond timer tick for TCP protocol timers), the timer management framework accesses a partition associated with a current timer value and checks the TCBs referenced within the current partition.

7. 发明授权

US07398292B2 System and method of enhancing web server throughput in single and multiple processor systems 有权
标题翻译：在单处理器和多处理器系统中增强Web服务器吞吐量的系统和方法
公开(公告)号：US07398292B2
公开(公告)日：2008-07-08
申请号：US11005995
申请日：2004-12-07
申请人： Venkataraman Ramanathan , Nk Srinivas , Vadim Eydelman , Abolade Gbadegesin
发明人： Venkataraman Ramanathan , Nk Srinivas , Vadim Eydelman , Abolade Gbadegesin
IPC分类号： G06F15/16
CPC分类号： H04L67/02
摘要： A system and method are presented that enhance the performance of single and multiple-processor servers by taking advantage of the half-duplex nature of many HTTP requests. Upon receipt of an HTTP Get resource request, a single send and disconnect IRP is generated. The semantics of the send and disconnect IRP completion recognizes the half-duplex nature of the transaction by indicating a graceful close of the TCP/IP connection. This send and disconnect IRP is also completed without a queuing stage (queuelessly) on the processor that serviced the client request. To further enhance performance, the server FIN message to the client is included in the last data frame transmitted to the server. The invention also contemplates transmission of a single HTTP get and disconnect request by a client to allow acknowledgementless disconnection of the TCP/IP connection once a requested resource has been sent.
摘要翻译：提出了一种通过利用许多HTTP请求的半双工特性来提高单处理器和多处理器服务器性能的系统和方法。收到HTTP Get资源请求后，将生成单个发送和断开IRP。发送和断开IRP完成的语义通过指示TCP / IP连接的正常关闭来识别事务的半双工性质。这个发送和断开的IRP也在处理器上没有排队阶段（无间歇地）完成，为客户端请求提供服务。为了进一步提高性能，向客户端发送的服务器FIN消息包含在发送到服务器的最后一个数据帧中。本发明还考虑了一旦客户端发送单个HTTP获取和断开请求，一旦所请求的资源被发送，允许TCP / IP连接的无条件断开。

8. 发明申请

US20060095754A1 Method and computer program product for offloading processing tasks from software to hardware 有权
公开(公告)号：US20060095754A1
公开(公告)日：2006-05-04
申请号：US11293520
申请日：2005-12-02
申请人： Jameel Hyder , Nk Srinivas , Alireza Dabagh , Sanjay Kaniyar
发明人： Jameel Hyder , Nk Srinivas , Alireza Dabagh , Sanjay Kaniyar
IPC分类号： G06F9/00
CPC分类号： G06F13/128 , G06F9/5027 , G06F9/5044 , G06F9/5055 , G06F2209/509 , H04L63/0428 , H04L63/1458 , H04L69/12 , H04L69/22 , H04L69/32
摘要： Offloading specific processing tasks that would otherwise be performed in a computer system's processor and memory, to a peripheral device. The computing task is then performed by the peripheral, thereby saving computer system resources for other computing tasks. In one preferred embodiment, the disclosed method is utilized in a layered network model, wherein computing tasks that are typically performed in network applications are instead offloaded to the network interface card (NIC) peripheral.

9. 发明授权

US07007103B2 Method to offload a network stack 失效
公开(公告)号：US07007103B2
公开(公告)日：2006-02-28
申请号：US10135489
申请日：2002-04-30
申请人： James Pinkerton , Abolade Gbadegesin , Sanjay Kaniyar , Nk Srinivas
发明人： James Pinkerton , Abolade Gbadegesin , Sanjay Kaniyar , Nk Srinivas
IPC分类号： G06F15/173
CPC分类号： H04L67/34 , H04L29/06 , H04L69/16 , H04L69/161 , H04L69/162 , H04L69/165
摘要： A method to offload a network stack connection is presented. A request, which includes a list of resource requirements from each software layer in the stack, to offload the network stack connection is sent through the stack to the peripheral device. The device allocates resources for the list and sends a handle to each of the software layers for communication with the device. The state for each layer is sent to the device that includes state variables that are classified as a constant, a cached variable handled by the CPU, or a delegated variable handled by the device.

10. 发明授权

US6081846A Method and computer program product for reducing intra-system data copying during network packet processing 失效
标题翻译：用于在网络数据包处理期间减少系统内数据复制的方法和计算机程序产品
公开(公告)号：US6081846A
公开(公告)日：2000-06-27
申请号：US852888
申请日：1997-05-08
申请人： Jameel Hyder , Kyle Brandon , Nk Srinivas , Rod Gamache
发明人： Jameel Hyder , Kyle Brandon , Nk Srinivas , Rod Gamache
IPC分类号： H04L12/56 , G06F13/00 , G06F13/38
CPC分类号： H04L49/90
摘要： A method and computer program product that overcomes the problem of intrasystem copying of data from one data structure to another while processing incoming packets of network data coming into the system off a communications network in an environment having an integrating component in between the network card device driver and the transport protocol driver that assigns system memory for packets to the respective drivers. The integrating component temporarily transfers ownership of the original data structure from the network card device driver to the transport protocol driver based on indication from the network card device driver, independent determination that the network card device driver can afford to temporarily release ownership, and determination of the transport protocol driver's ability to take ownership. The transport protocol driver will indicate receipt of ownership of the data structure and later explicitly release it. The transport protocol driver may then operate on the data structure after the initial invocation session has ended when it initially received ownership until it is released at a later time to thus prevent copying of the data and thereby increase system efficiency. Temporary transfer of ownership according to the present invention is especially important when the network card device driver fills data structure with network data during interrupt processing that causes a scenario where the transport protocol driver is not able to fully process the network data in the initial invocation session without copying the data.
摘要翻译：一种方法和计算机程序产品，其克服了将数据从一个数据结构复制到另一个数据结构的问题，同时在具有网络卡设备驱动程序之间的集成组件的环境中处理从通信网络进入系统的进入的数据包以及将分组的系统存储器分配给相应驱动器的传输协议驱动器。集成组件基于来自网卡设备驱动程序的指示将原始数据结构的所有权从网卡设备驱动程序暂时转移到传输协议驱动器，独立确定网卡设备驱动程序能够暂时释放所有权，并且确定运输协议驱动程序拥有所有权的能力。传输协议驱动程序将指示接收数据结构的所有权，然后明确释放它。传输协议驱动程序然后可以在初始调用会话结束之后在数据结构上操作，当它最初接收到所有权时，直到它在稍后的时间被释放，从而防止数据的拷贝，从而提高系统效率。当网卡设备驱动程序在中断处理期间填充具有网络数据的数据结构时，根据本发明的所有权临时转移特别重要，这导致传输协议驱动程序在初始调用会话中无法完全处理网络数据的场景而不复制数据。

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