公开(公告)号：US20050265252A1

公开(公告)日：2005-12-01

申请号：US10855730

申请日：2004-05-27

申请人： Dwip Banerjee ,  Venkat Venkatsubra ,  Richard Youngman

发明人： Dwip Banerjee ,  Venkat Venkatsubra ,  Richard Youngman

IPC分类号： H04L12/24 ,  H04L12/28

CPC分类号： H04L41/08 ,  H04L43/022

摘要： Methods, systems, and media to sub-divide an ephemeral port range and allocate ports from the sub-divided ephemeral port ranges to facilitate communication with another destination, or target, application are contemplated. Embodiments involve a client computer system having one or more source applications. Embodiments also include hardware and/or software for categorizing transactions based upon characteristics of the transactions. Such categories correspond to categories with which sub-divisions of ephemeral port numbers are assigned. After a transaction is associated with a category, a port number selected from a pool of available port numbers in a sub-division of ephemeral port numbers assigned to that category. In many embodiments, an initial configuration is implemented via a configuration file at the startup of the client computer system. In further embodiments, assignments of ephemeral port numbers to the categories of transactions are dynamically adjusted based upon, e.g., actual usage of the port numbers.

摘要翻译： 方法，系统和媒体，用于对临时端口范围进行细分，并从分分割的临时端口范围分配端口以便于与另一个目标或目标应用程序的通信。 实施例涉及具有一个或多个源应用的客户端计算机系统。 实施例还包括用于基于事务的特征对交易进行分类的硬件和/或软件。 这些类别对应于分配短暂端口号的分部的类别。 在事务与一个类别相关联之后，从分配给该类别的短暂端口号的子划分中的可用端口号池中选择一个端口号。 在许多实施例中，在客户端计算机系统启动时通过配置文件实现初始配置。 在另外的实施例中，基于诸如端口号的实际使用来动态地调整临时端口号到事务类别的分配。

公开(公告)号：US20060045131A1

公开(公告)日：2006-03-02

申请号：US10926584

申请日：2004-08-26

申请人： Ketan Pancholi ,  Dwip Banerjee ,  Deanna Quigg Brown ,  Venkat Venkatsubra

发明人： Ketan Pancholi ,  Dwip Banerjee ,  Deanna Quigg Brown ,  Venkat Venkatsubra

IPC分类号： H04J3/22

CPC分类号： H04L69/166 ,  H04L67/32

摘要： A method, system, and computer program product for optimizing a message size for communication in a communication network are disclosed. The method comprises identifying a connection to a target, sending to a path maximum transmission unit value server (which is not the target) a request for a path maximum transmission unit value for the connection to the target, and, in response to receiving the path maximum transmission unit value for the connection to the target from the server, optimizing a communication by sending to the target a packet having a size in accordance with the value.

摘要翻译： 公开了一种用于优化通信网络中的通信的消息大小的方法，系统和计算机程序产品。 该方法包括识别与目标的连接，向路径发送最大传输单元值服务器（其不是目标）对用于到目标的连接的路径最大传输单元值的请求，并且响应于接收到路径 用于从服务器到目标的连接的最大传输单元值，通过向目标发送具有根据该值的大小的分组来优化通信。

公开(公告)号：US20060031571A1

公开(公告)日：2006-02-09

申请号：US10834714

申请日：2004-04-29

申请人： Dwip Banerjee ,  Kavitha Vittal Baratakke ,  Lilian Fernandes ,  Venkat Venkatsubra

发明人： Dwip Banerjee ,  Kavitha Vittal Baratakke ,  Lilian Fernandes ,  Venkat Venkatsubra

IPC分类号： G06F15/173

CPC分类号： H04L63/08 ,  H04L69/16 ,  H04L69/165

摘要： Data communications through a split connection proxy in a data communications protocol, including receiving in a proxy from a client, asynchronously with respect to any other messages between the client and the proxy, one or more client messages including client message data items including a connection request for a connection between the client and the proxy, destination connection data identifying a destination server, and a message from the client to the destination server; and sending from the proxy to the server, asynchronously with respect to any messages between the client and the proxy and asynchronously with respect to any other messages between the proxy and the server, one or more proxy messages including proxy message data items including a connection request for a connection between the proxy and the destination server and the message from the client to the destination server.

摘要翻译： 通过数据通信协议中的分离连接代理进行的数据通信，包括从客户端接收代理，与客户端和代理之间的任何其他消息异步地，一个或多个客户端消息包括包括连接请求的客户端消息数据项 用于客户端和代理之间的连接，标识目的地服务器的目的地连接数据以及从客户端到目的地服务器的消息; 以及相对于所述客户机和所述代理之间的任何消息异步地从所述代理发送到所述服务器，并且相对于所述代理服务器和所述服务器之间的任何其他消息异步地，一个或多个代理消息包括代理消息数据项，包括连接请求 用于代理和目标服务器之间的连接以及从客户端到目标服务器的消息。

公开(公告)号：US20050086390A1

公开(公告)日：2005-04-21

申请号：US10687235

申请日：2003-10-16

申请人： Dwip Banerjee ,  Kavitha Baratakke ,  Vinit Jain ,  Venkat Venkatsubra

发明人： Dwip Banerjee ,  Kavitha Baratakke ,  Vinit Jain ,  Venkat Venkatsubra

IPC分类号： G06F13/42 ,  G06F15/16 ,  H04L29/06

CPC分类号： H04L69/16 ,  H04L69/161 ,  H04L69/22

摘要： A method, system, and program for efficient packet desegmentation on a network adapter are provided. Multiple data packet segments received at a network adapter from a single connection are buffered at the network adapter. The single connection is identified by addresses and ports extracted from the header of each data packet segment. Responsive to detecting a buffering release condition, the data packet segments are released from the network adapter as a desegmented group to a network stack, such that the data packets segments received for the single connection are efficiently passed to the network stack together. In particular, the single connection is a TCP connection identified by a four-tuple of source and destination addresses and ports extracted from each TCP header of each of said plurality of data packet segments.

摘要翻译： 提供了一种用于在网络适配器上实现有效的分组分段的方法，系统和程序。 在网络适配器处从单个连接接收的多个数据分组段被缓冲。 单个连接由从每个数据分组段的报头提取的地址和端口来标识。 响应于检测缓冲释放条件，将数据分组片段作为被分组的组从网络适配器释放到网络堆栈，使得为单个连接接收的数据分组片段被有效地传递到网络堆栈。 特别地，单个连接是由从所述多个数据分组段中的每一个的每个TCP报头提取的源和目的地地址和端口的四元组标识的TCP连接。

公开(公告)号：US20070133582A1

公开(公告)日：2007-06-14

申请号：US11301106

申请日：2005-12-12

申请人： Dwip Banerjee ,  Vinit Jain ,  Kavitha Ramalingam ,  Venkat Venkatsubra

发明人： Dwip Banerjee ,  Vinit Jain ,  Kavitha Ramalingam ,  Venkat Venkatsubra

IPC分类号： H04L12/56

CPC分类号： H04L47/10 ,  H04L47/266 ,  H04L47/30 ,  H04L49/90 ,  H04L49/901

摘要： A method, system, and program provide for efficient send socket call handling by a transport layer. A transport layer of a network protocol stack receives a send socket call for data of a specified length from an application layer. Responsive to detecting that there is insufficient memory for a single memory allocation to a buffer in the transport layer for at least the specified length, the transport layer blocks the send socket call. The transport layer only wakes the send socket call upon detection of sufficient memory for the single memory allocation within the buffer of the transport layer for at least the specified length, wherein waking the send socket call triggers a kernel to perform the single memory allocation in the buffer and to write the data to the single memory allocation in a single pass.

摘要翻译： 方法，系统和程序提供传输层有效的发送套接字呼叫处理。 网络协议栈的传输层从应用层接收指定长度的数据的发送套接字调用。 响应于检测到对于至少指定长度的传输层中的缓冲器的单个存储器分配没有足够的存储器，传输层阻止发送套接字调用。 检测到传输层缓冲区内单个内存分配的足够内存至少达到指定长度时，传输层只会唤醒发送套接字调用，其中唤醒发送套接字调用会触发内核执行单个内存分配 缓冲区，并将数据写入单次存储器分配。

公开(公告)号：US20060165051A1

公开(公告)日：2006-07-27

申请号：US10988291

申请日：2004-11-12

申请人： Dwip Banerjee ,  Ranadip Das ,  Ketan Pancholi ,  Venkat Venkatsubra

发明人： Dwip Banerjee ,  Ranadip Das ,  Ketan Pancholi ,  Venkat Venkatsubra

IPC分类号： H04L12/28

CPC分类号： H04L61/1511 ,  H04L29/12066 ,  H04L29/12132 ,  H04L43/0811 ,  H04L61/1552

摘要： Determining availability of a destination for computer network communications that include providing on a caching device a destination availability cache comprising at least one cache entry representing availability of a destination and providing, from the caching device to a source, through computer network communications, information indicating the availability of the destination. In typical embodiments, the cache entry comprises a network address of a destination device and a time limitation for the cache entry.

公开(公告)号：US20050281288A1

公开(公告)日：2005-12-22

申请号：US10870541

申请日：2004-06-17

申请人： Dwip Banerjee ,  Deanna Quigg Brown ,  Ketan Pancholi ,  Venkat Venkatsubra

发明人： Dwip Banerjee ,  Deanna Quigg Brown ,  Ketan Pancholi ,  Venkat Venkatsubra

IPC分类号： H04L12/56 ,  H04L29/06

CPC分类号： H04L47/10 ,  H04L47/36 ,  H04L69/16 ,  H04L69/166

摘要： The present invention provides a method and apparatus for discovering a path maximum transmission unit. The method comprises receiving a data packet from a first remote device for transmission to a second remote device and determining if a size of the received data packet is greater than a maximum transmission unit (MTU) value. In response to determining that the size of the received data packet is greater than the MTU value, the method further comprises transmitting a portion of the received data packet to the second remote device and transmitting a message to the first remote device indicating that the size of the received data packet exceeds the MTU value.

摘要翻译： 本发明提供一种用于发现路径最大传输单元的方法和装置。 该方法包括从第一远程设备接收数据分组以便传输到第二远程设备，并确定所接收的数据分组的大小是否大于最大传输单元（MTU）值。 响应于确定接收到的数据分组的大小大于MTU值，该方法还包括将接收的数据分组的一部分发送到第二远程设备，并向第一远程设备发送消息，指示其大小 接收到的数据包超过MTU值。

公开(公告)号：US20050165932A1

公开(公告)日：2005-07-28

申请号：US10763100

申请日：2004-01-22

申请人： Dwip Banerjee ,  Lilian Fernandes ,  Vasu Vallabhaneni ,  Venkat Venkatsubra

发明人： Dwip Banerjee ,  Lilian Fernandes ,  Vasu Vallabhaneni ,  Venkat Venkatsubra

IPC分类号： G06F9/46 ,  G06F15/173 ,  H04L29/06 ,  H04L29/08

CPC分类号： G06F9/544 ,  H04L67/2814 ,  H04L69/14 ,  H04L69/16 ,  H04L69/161 ,  H04L69/162 ,  H04L69/30

摘要： A method, system, and program for redirecting client connection requests among sockets providing a same service are provided. An application requests multiple sockets from a kernel. In addition, the application generates a socket call option to bind the sockets to a particular port number and passes a list of the sockets to the kernel, where the list indicates that the sockets will all provide access to server systems providing the same service. In response, the kernel sets up the sockets, bound to the same port, and set to reference one another. Then, when a connection request is received for a first socket in the list with a queue that is full, the kernel redirects the connection request to a second socket in the list with available queue space. Thus, rather than drop the connection request from the first socket when it lacks available queue space, the connection request is redirected to another socket providing access to the same service.

摘要翻译： 提供了一种用于在提供相同服务的套接字之间重定向客户端连接请求的方法，系统和程序。 应用程序从内核请求多个套接字。 此外，应用程序还会生成套接字调用选项，将套接字绑定到特定端口号，并将套接字列表传递给内核，其中列表指示套接字将提供对提供相同服务的服务器系统的访问。 作为响应，内核设置了绑定到相同端口的套​​接字，并设置为引用彼此。 然后，当对于队列已满的列表中的第一个套接字接收到连接请求时，内核将连接请求重定向到列表中具有可用队列空间的第二个套接字。 因此，当连接请求缺少可用的队列空间时，而不是从第一个套接字中删除连接请求，则将连接请求重定向到提供对同一服务的访问的另一个套接字。

公开(公告)号：US20050073981A1

公开(公告)日：2005-04-07

申请号：US10677656

申请日：2003-10-02

申请人： Dwip Banerjee ,  Kavitha Baratakke ,  Vasu Vallabhaneni ,  Venkat Venkatsubra

发明人： Dwip Banerjee ,  Kavitha Baratakke ,  Vasu Vallabhaneni ,  Venkat Venkatsubra

IPC分类号： H04W36/00 ,  H04W80/06 ,  H04W88/14 ,  H04Q7/24

CPC分类号： H04W36/0011 ,  H04W80/06 ,  H04W88/14

摘要： Responsive to detecting a need for a mobile device to transfer out of a first network, requests are sent from the mobile device to a communication endpoint in mSCTP. The first request is to stop transmissions to a first address of said mobile device. The second request is to add an intermediary address of a mobility support service designated for receiving any communications already in transmission when the first request is sent. The communication link for the mobile device is then transitioned from the current address at the first network to a second address at a second network. The first network and the second network are non-intersecting networks. The mobile device then indicates to the mobility support service that the handover from the first network to the second network is complete. The mobility support service responds to the completion by sending a third request in mSCTP to the communication endpoint to continue communication with the mobile client at the second address.

摘要翻译： 响应于检测移动设备从第一网络传出的需求，请求从移动设备发送到mSCTP中的通信端点。 第一个请求是停止对所述移动设备的第一地址的传输。 第二个请求是在发送第一个请求时添加指定用于接收已经在传输中的任何通信的移动性支持服务的中间地址。 然后，用于移动设备的通信链路从第一网络的当前地址转换到第二网络处的第二地址。 第一个网络和第二个网络是不相交的网络。 然后，移动设备向移动性支持服务指示从第一网络到第二网络的切换是完整的。 移动支持服务通过在mSCTP发送第三请求到通信端点来响应完成，以继续与第二地址处的移动客户端通信。

公开(公告)号：US20050038899A1

公开(公告)日：2005-02-17

申请号：US10640847

申请日：2003-08-14

申请人： Dwip Banerjee ,  Kavitha Baratakke ,  Ketan Pancholi ,  Venkat Venkatsubra

发明人： Dwip Banerjee ,  Kavitha Baratakke ,  Ketan Pancholi ,  Venkat Venkatsubra

IPC分类号： H04L29/06 ,  G06F15/16

CPC分类号： H04L29/06 ,  H04L69/16 ,  H04L69/163

摘要： A dynamically-enforceable application-controlled quasi-reliable extension to TCP permits a client application to dynamically set a percent loss tolerance for data transmission reliability through network input/output system calls to the TCP, thereby programming the transport layer to optimistically acknowledge non-critical missing frames. The reliability requirement can be dynamically set within TCP to the level of reliability required for specific data frames within the data stream during the data transfer. Based on this loss tolerance specified, the TCP layer makes a determination whether to trigger a retransmission or continue delivering out-of-order frames to the application. A forced acknowledgement frame is sent for each missing packet until the number missing packets causing forced acknowledgments within the current receive buffer frame exceeds the loss tolerance. This process avoids needless retransmissions and permits the TCP data flow and sliding window to advance uninterrupted, thereby providing substantial performance benefits to network throughput.

摘要翻译： 对TCP的动态可执行的应用程序控制的准可靠扩展允许客户端应用程序通过网络输入/输出系统调用TCP动态设置数据传输可靠性的百分比损耗容限，从而对传输层进行编程，乐观地确认非关键 丢失帧。 可靠性要求可以在TCP内动态设置为在数据传输期间数据流内特定数据帧所需的可靠性水平。 基于指定的丢失容限，TCP层确定是否触发重传，或者继续向应用发送无序帧。 为每个丢失的数据包发送强制确认帧，直到导致当前接收缓冲区帧内的强制确认的数据丢失数据包超过丢失容限。 该过程避免了不必要的重传，并允许TCP数据流和滑动窗口不间断地前进，从而为网络吞吐量提供显着的性能优势。