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1. 发明授权

US08422501B2 Efficient path maximum transmission unit information discovery and storage 有权
标题翻译：高效路径最大传输单元信息发现和存储
公开(公告)号：US08422501B2
公开(公告)日：2013-04-16
申请号：US11619676
申请日：2007-01-04
申请人： Ranadip Das , Vinit Jain , Uma Krishnan , Venkat Venkatsubra
发明人： Ranadip Das , Vinit Jain , Uma Krishnan , Venkat Venkatsubra
IPC分类号： H04L12/56 , H04L12/28 , G06F11/00
CPC分类号： H04L47/10 , H04L47/36
摘要： A method, computer program product, and data processing system for efficiently discovering and storing path MTU information in a sending host are disclosed. In a preferred embodiment, two path MTU tables are maintained. One path MTU table contains MTU values corresponding to the first-hop routers associated with the sending host. The other path MTU table contains MTU values corresponding to individual destination hosts. When the sending host needs to send information to a destination, it first consults the MTU table associated with individual destination hosts. If an entry for that destination host is found in the table, the sending host uses that MTU value. If not, the sending host consults the MTU table for the first-hop router on the path to the destination host and uses that MTU value. If that MTU value is too high, a new entry is made in the host-specific MTU table for the destination host.
摘要翻译：公开了一种用于在发送主机中有效发现和存储路径MTU信息的方法，计算机程序产品和数据处理系统。在优选实施例中，保持两个路径MTU表。一个路径MTU表包含与发送主机关联的第一跳路由器对应的MTU值。另一路径MTU表包含对应于各个目标主机的MTU值。当发送主机需要向目的地发送信息时，首先查询与各个目的主机关联的MTU表。如果表中找到该目标主机的条目，则发送主机将使用该MTU值。如果不是，则发送主机在目的地主机的路径上查询第一跳路由器的MTU表，并使用该MTU值。如果该MTU值太高，则在目标主机的主机特定MTU表中创建一个新条目。

2. 发明授权

US07480301B2 Method, system and article for improved TCP performance during retransmission in response to selective acknowledgement 失效
标题翻译：用于响应于选择性确认在重传期间改进TCP性能的方法，系统和文章
公开(公告)号：US07480301B2
公开(公告)日：2009-01-20
申请号：US11014540
申请日：2004-12-16
申请人： Uma Krishnan , Venkat Venkatsubra , Vinit Jain
发明人： Uma Krishnan , Venkat Venkatsubra , Vinit Jain
IPC分类号： H04L1/00 , H04L12/26 , H04J3/14 , H04J1/16
CPC分类号： H04L1/16 , H04L1/1809 , H04L69/16 , H04L69/163 , H04W8/26 , H04W28/06 , H04W80/06
摘要： A TCP/IP retransmission frame contains multiple TCP segments containing non-contiguous missing packets from a data communication. A TCP option in the first segment in the frame indicates the presence of multiple TCP payloads in the frame. Each TCP payload has a corresponding prepended TCP header. An offset address specified in each TCP header within the frame identifies the location of the next TCP header in the frame. Network throughput performance is enhanced by permitting multiple non-contiguous packets to be retransmitted in a single IP packet.
摘要翻译： TCP / IP重传帧包含多个包含数据通信中不连续丢失数据包的TCP段。帧中的第一段中的TCP选项指示帧中存在多个TCP有效载荷。每个TCP有效载荷具有相应的前缀TCP头。在帧内的每个TCP报头中指定的偏移地址标识帧中下一个TCP报头的位置。通过允许在单个IP分组中重传多个不连续分组来增强网络吞吐量性能。

3. 发明申请

US20060133379A1 Method, system and article for improved TCP performance during retransmission in response to selective acknowledgement 失效
公开(公告)号：US20060133379A1
公开(公告)日：2006-06-22
申请号：US11014540
申请日：2004-12-16
申请人： Uma Krishnan , Venkat Venkatsubra , Vinit Jain
发明人： Uma Krishnan , Venkat Venkatsubra , Vinit Jain
IPC分类号： H04L1/00
CPC分类号： H04L1/16 , H04L1/1809 , H04L69/16 , H04L69/163 , H04W8/26 , H04W28/06 , H04W80/06
摘要： A TCP/IP retransmission frame contains multiple TCP segments containing non-contiguous missing packets from a data communication. A TCP option in the first segment in the frame indicates the presence of multiple TCP payloads in the frame. Each TCP payload has a corresponding prepended TCP header. An offset address specified in each TCP header within the frame identifies the location of the next TCP header in the frame. Network throughput performance is enhanced by permitting multiple non-contiguous packets to be retransmitted in a single IP packet.

4. 发明申请

US20060050717A1 Reducing delays associated with port binding 审中-公开
标题翻译：减少与端口绑定相关的延迟
公开(公告)号：US20060050717A1
公开(公告)日：2006-03-09
申请号：US10937670
申请日：2004-09-09
申请人： Mallesh Lepakshaiah , Venkat Venkatsubra , Shantala Gopalakrishna , Uma Krishnan
发明人： Mallesh Lepakshaiah , Venkat Venkatsubra , Shantala Gopalakrishna , Uma Krishnan
IPC分类号： H04L12/28 , H04L12/56
CPC分类号： H04L69/16 , H04L45/00 , H04L69/161 , H04L69/162 , H04L69/32
摘要： Methods, systems, and media to reduce delays associated with port assignments are disclosed. More specifically, embodiments include hardware and/or software to delay binding of selected port numbers to instances of applications. Some embodiments identify port numbers for which applications generate multiple bind calls that may connect with unique remote ports. The port numbers are stored in a port list that is accessible to the protocol stack and memory is allocated for storing flags and additional port configuration data. When a bind call is associated with a port number bound to another application instance and the port number is included in the port list, the bind call may then be delayed until a connect is received from the corresponding application instance. When the resulting four tuple is unique for the computer system, the corresponding application instance is bound to the port number and connected with the remote port.
摘要翻译：公开了减少与端口分配相关的延迟的方法，系统和媒体。更具体地，实施例包括延迟将所选端口号绑定到应用实例的硬件和/或软件。一些实施例识别应用程序生成可以与唯一远程端口连接的多个绑定呼叫的端口号。端口号存储在协议栈可访问的端口列表中，内存被分配用于存储标志和附加端口配置数据。当绑定呼叫与绑定到其他应用程序实例的端口号相关联，并且端口号包含在端口列表中时，可能会延迟绑定调用，直到从相应的应用程序实例接收到连接。当生成的四元组对于计算机系统是唯一的，相应的应用实例绑定到端口号并与远程端口连接。

5. 发明授权

US07496038B2 Method for faster detection and retransmission of lost TCP segments 失效
标题翻译：快速检测和重传丢失的TCP段的方法
公开(公告)号：US07496038B2
公开(公告)日：2009-02-24
申请号：US11301103
申请日：2005-12-12
申请人： Shantala G. Krishna , Uma Krishnan , Kavitha Ramalingam , Venkat Venkatsubra
发明人： Shantala G. Krishna , Uma Krishnan , Kavitha Ramalingam , Venkat Venkatsubra
IPC分类号： H04J1/16
CPC分类号： H04L69/16 , H04L69/163
摘要： A method, network receiver and TCP network that enables a receiver-side triggering of the fast retransmit mechanism when a TCP packet/segment is lost or received out-of sequencing order. The receiver is enhanced with a Fast Retransmit Support (FRS) utility that monitors when a next received packet is out-of-order and responds by transmitting a duplicate acknowledgment (ACK) response that includes therein the same window value as the previous ACK. By including the previous clock time, even when the current window value has advanced, the fast retransmit algorithm at the transmitter is triggering before the timeout period.
摘要翻译：一种方法，网络接收机和TCP网络，当TCP分组/分段丢失或接收到排序顺序时，使得接收机侧触发快速重传机制。使用快速重传支持（FRS）实现增强接收机，该实用程序监视下一个接收到的分组是否处于无序状态，并通过发送其中包含与先前ACK相同的窗口值的重复确认（ACK）响应进行响应。通过包括先前的时钟时间，即使当前窗口值已经提前，发射机的快速重传算法在超时时间之前被触发。

6. 发明申请

US20070133414A1 Method for faster detection and retransmission of lost TCP segments 失效
标题翻译：快速检测和重传丢失的TCP段的方法
公开(公告)号：US20070133414A1
公开(公告)日：2007-06-14
申请号：US11301103
申请日：2005-12-12
申请人： Shantala Krishna , Uma Krishnan , Kavitha Ramalingam , Venkat Venkatsubra
发明人： Shantala Krishna , Uma Krishnan , Kavitha Ramalingam , Venkat Venkatsubra
IPC分类号： H04J1/16
CPC分类号： H04L69/16 , H04L69/163
摘要： A method, network receiver and TCP network that enables a receiver-side triggering of the fast retransmit mechanism when a TCP packet/segment is lost or received out-of sequencing order. The receiver is enhanced with a Fast Retransmit Support (FRS) utility that monitors when a next received packet is out-of-order and responds by transmitting a duplicate acknowledgment (ACK) response that includes therein the same window value as the previous ACK. By including the previous clock time, even when the current window value has advanced, the fast retransmit algorithm at the transmitter is triggering before the timeout period.
摘要翻译：一种方法，网络接收机和TCP网络，当TCP分组/分段丢失或接收到排序顺序时，使得接收机侧触发快速重传机制。使用快速重传支持（FRS）实现增强接收机，该实用程序监视下一个接收到的分组是否处于无序状态，并通过发送其中包含与先前ACK相同的窗口值的重复确认（ACK）响应进行响应。通过包括先前的时钟时间，即使当前窗口值已经提前，发射机的快速重传算法在超时时间之前被触发。

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