利索-全球专利检索

  1. 登录
  2. 注册

搜索结果

192 条记录 (耗时 0.024 秒)

    Reducing the learning curve of a transmission control protocol connection
    1.
    发明授权
    Reducing the learning curve of a transmission control protocol connection 失效
    减少传输控制协议连接的学习曲线

    公开(公告)号：US08364824B2

    公开(公告)日：2013-01-29

    申请号：US12130440

    申请日：2008-05-30

    申请人： Ketan Priyakant Pancholi ,  Vasu Vallabhaneni ,  Venkat Venkatsubra

    发明人： Ketan Priyakant Pancholi ,  Vasu Vallabhaneni ,  Venkat Venkatsubra

    IPC分类号： G06F15/16

    CPC分类号： H04L61/1511 ,  H04L29/12066 ,  H04L69/16 ,  H04L69/163 ,  H04L69/326

    摘要： A method in a data processing system for reducing the learning curve of a transmission control protocol connection. A domain name system is queried for information. The information and a previously used transmission control protocol parameter for a transmission control protocol connection are received from the domain name system. The information and the previously used transmission control protocol parameter are used to configure a current transmission control protocol connection.

    摘要翻译： 一种用于减少传输控制协议连接的学习曲线的数据处理系统中的方法。 查询域名系统的信息。 从域名系统接收用于传输控制协议连接的信息和先前使用的传输控制协议参数。 信息和以前使用的传输控制协议参数用于配置当前的传输控制协议连接。

    Method, system and article for improved TCP performance during packet reordering
    3.
    发明授权
    Method, system and article for improved TCP performance during packet reordering 失效
    方法，系统和文章，用于在数据包重排序期间改进TCP性能

    公开(公告)号：US07742419B2

    公开(公告)日：2010-06-22

    申请号：US12101765

    申请日：2008-04-11

    申请人： Kavitha Vittal Murthy Baratakke ,  Vinit Jain ,  Vasu Vallabhaneni ,  Venkat Venkatsubra

    发明人： Kavitha Vittal Murthy Baratakke ,  Vinit Jain ,  Vasu Vallabhaneni ,  Venkat Venkatsubra

    IPC分类号： H04L1/00

    CPC分类号： H04L29/06 ,  H04L69/16 ,  H04L69/161 ,  H04L69/163

    摘要： TCP congestion avoidance is implemented upon retransmission of a packet and is reverted back to the original congestion state upon receipt of an early acknowledgement (ACK), indicating reordering of packets, thereby eliminating a needless restriction on TCP bandwidth. Upon receiving an ACK to a retransmitted packet, it is determined if the ACK resulted from receipt of the original reordered packet or the retransmitted packet, based on the arrival time of the ACK at the sender. If the round-trip-time (RTT) for the retransmitted packet is much lower than the average or current calculated RTT for the network link between sender and receiver, then the retransmission occurred as a result of a reordering event, and the congestion window is restored back to its value prior to the retransmission, thereby permitting the network link to continue operating at its original increased throughput.

    摘要翻译： TCP拥塞避免在分组重传时实现，并且在接收到指示重新排序分组的早期确认（ACK）时被恢复到原始拥塞状态，从而消除对TCP带宽的不必要的限制。 在向重传的分组接收到ACK时，基于ACK在发送方的到达时间确定ACK是否从接收到原始重新排序的分组或重传分组而产生。 如果重发分组的往返时间（RTT）远低于发送方和接收方之间的网络链路的平均或当前计算的RTT，则重新发送作为重排序事件的结果，拥塞窗口为 在重传之前恢复其值，从而允许网络链路以其原始增加的吞吐量继续运行。

    Method, system and article for rapid detection and avoidance of high data corrupting routes within a network
    4.
    发明授权
    Method, system and article for rapid detection and avoidance of high data corrupting routes within a network 有权
    用于快速检测和避免网络内高数据损坏路由的方法，系统和文章

    公开(公告)号：US07394769B2

    公开(公告)日：2008-07-01

    申请号：US10640819

    申请日：2003-08-14

    申请人： Dwip N. Banerjee ,  Vinit Jain ,  Vasu Vallabhaneni ,  Venkat Venkatsubra

    发明人： Dwip N. Banerjee ,  Vinit Jain ,  Vasu Vallabhaneni ,  Venkat Venkatsubra

    IPC分类号： H04J1/16

    CPC分类号： H04L1/0061 ,  H04L1/0072 ,  H04L1/08 ,  H04L1/16 ,  H04L1/1809 ,  H04L45/00 ,  H04L45/22 ,  H04L45/28 ,  H04L69/16 ,  H04L69/161 ,  H04L69/163 ,  H04L69/22 ,  H04L69/40

    摘要： A receiving host in a TCP/IP network sends an acknowledgment indicating a received data packet is corrupt. The sending host will begin transmitting with a new field set in the IP header called a check-TCP-checksum bit, thereby requesting that all routers in the TCP/IP network perform a checksum on the entire received packet. Routers in the TCP/IP network will perform a complete checksum on an entire packet with the check-TCP-checksum bit set, and not just on the IP header. The routers continuously monitor the ratio of corrupt packets received on a particular port that fail the entire packet checksum to the total number of packets received on that port. If the ratio of corrupt-to-received packets exceeds a corruption threshold, the router assumes that the associated link is causing data corruption and issues a routing update indicating that the link is bad and should be avoided. Once the retransmission rate between the sender and receiver drops below a threshold level, the bad link has been detected and avoided within the TCP/IP network and the check-TCP-checksum option in the IP header is no longer set in data packets transmitted to the receiver host.

    摘要翻译： TCP / IP网络中的接收主机发送指示接收到的数据包已损坏的确认。 发送主机将开始使用称为检查TCP校验和位的IP报头中设置的新字段进行发送，从而请求TCP / IP网络中的所有路由器对整个接收到的数据包执行校验和。 TCP / IP网络中的路由器将对整个数据包执行完整的校验和，同时检查TCP-checksum位，而不仅仅是在IP报头上。 路由器连续监视在特定端口上接收的损坏数据包的总数与在该端口上接收的数据包的总数之间的比例。 如果损坏的数据包的比例超过了破坏阈值，则路由器假设相关联的链路导致数据损坏，并发出路由更新，指示链路不良，应该避免。 一旦发送方和接收方之间的重传速率下降到阈值以下，就会在TCP / IP网络内检测并避免不良链路，并且IP报头中的check-TCP-checksum选项不再被设置在发送到 接收主机。

    Method and apparatus for multicast tunneling for mobile devices
    5.
    发明申请
    Method and apparatus for multicast tunneling for mobile devices 失效
    用于移动设备的组播隧道的方法和装置

    公开(公告)号：US20050286455A1

    公开(公告)日：2005-12-29

    申请号：US10875897

    申请日：2004-06-24

    申请人： Lilian Fernandes ,  Vinit Jain ,  Vasu Vallabhaneni ,  Venkat Venkatsubra

    发明人： Lilian Fernandes ,  Vinit Jain ,  Vasu Vallabhaneni ,  Venkat Venkatsubra

    IPC分类号： H04J3/24 ,  H04L12/18 ,  H04L12/28 ,  H04L12/56 ,  H04L29/06

    CPC分类号： H04L47/24 ,  H04L12/189 ,  H04L45/16 ,  H04W4/06 ,  H04W40/00 ,  H04W80/04

    摘要： The present invention provides a method and apparatus for multicast tunneling for mobile devices. The method comprises receiving a multicast packet directed to a plurality of mobile nodes, the mobile nodes being associated with a home subnet and identifying if any of the plurality of the mobile nodes are coupled to a subnet other than the home subnet, wherein each of the identified mobile nodes has an associated transmission path through which that mobile node can be reached. The method further provides that in response to determining that at least some of the mobile nodes are coupled to the subnet other than the home subnet, determining which of the identified mobile nodes has a common next hop in their associated transmission path and generating a packet including at least a portion of the multicast packet and including in the packet a list of mobile nodes that have the common next hop. The method further provides for transmitting the generated packet to the common next hop.

    摘要翻译： 本发明提供一种用于移动设备的组播隧道的方法和装置。 所述方法包括：接收指向多个移动节点的多播分组，所述移动节点与归属子网相关联，并且识别所述多​​个所述移动节点中的任一个是否耦合到除所述归属子网之外的子网，其中， 识别的移动节点具有相关联的传输路径，通过该路径可以到达该移动节点。 该方法进一步规定，响应于确定至少一些移动节点被耦合到除了​​归属子网之外的子网，确定所识别的移动节点中哪一个在其相关联的传输路径中具有共同的下一跳，并且生成包括 所述多播分组的至少一部分并且在分组中包括具有公共下一跳的移动节点的列表。 该方法进一步提供将生成的分组发送到公共下一跳。

    Article for improved network performance by avoiding IP-ID wrap-arounds causing data corruption on fast networks
    6.
    发明授权
    Article for improved network performance by avoiding IP-ID wrap-arounds causing data corruption on fast networks 有权
    文章通过避免在快速网络上导致数据损坏的IP-ID环绕来改善网络性能

    公开(公告)号：US07826449B2

    公开(公告)日：2010-11-02

    申请号：US12130521

    申请日：2008-05-30

    申请人： Shankar Manjunatha ,  Vasu Vallabhaneni ,  Venkat Venkatsubra ,  Richard Perry Youngman

    发明人： Shankar Manjunatha ,  Vasu Vallabhaneni ,  Venkat Venkatsubra ,  Richard Perry Youngman

    IPC分类号： H04L12/28

    CPC分类号： H04L69/16 ,  H04L47/32 ,  H04L69/28

    摘要： The reassembly timer in a TCP/IP receiver is dynamically set to avoid data corruption on fast networks caused by IP identification wrap-around. A sender generates IP packets with a special option specifying a reassembly time for fragments based on the subnet of the destination or on the calculated round-trip time of the connection. A receiver sets the reassembly timer to the reassembly time specified in the option. A sender can generate IP packets with an alternative option setting a time stamp for the generated packet. A receiver calculates a traversal time based on the difference between the arrival time of the fragment and this time stamp, and sets the reassembly timer based on this traversal time. A receiver can independently set the reassembly timer to a first reassembly time set by the user for fast networks or to a second reassembly timer set by the user for slow networks based on whether the receiver and sender are on the same subnet.

    摘要翻译： TCP / IP接收器中的重组定时器被动态设置，以避免由IP识别环绕引起的快速网络上的数据损坏。 发送方生成具有特殊选项的IP数据包，指定基于目的地的子网或连接的计算出的往返时间的片段的重组时间。 接收机将重新组装定时器设置为选项中指定的重新组装时间。 发送方可以使用替代选项生成IP数据包，为生成的数据包设置时间戳。 接收机根据片段的到达时间与该时间戳的差异来计算遍历时间，并根据该遍历时间设置重新组装定时器。 接收机可以基于接收机和发送机是否在相同的子网上，将快速网络或由用户为慢速网络设置的第二重组定时器独立地设置为由用户设置的第一重组时间。

    Method and apparatus to perform segmentation off-load between two logical partitions
    7.
    发明授权
    Method and apparatus to perform segmentation off-load between two logical partitions 有权
    在两个逻辑分区之间执行分段卸载的方法和装置

    公开(公告)号：US07796646B2

    公开(公告)日：2010-09-14

    申请号：US11627180

    申请日：2007-01-25

    申请人： Ranadip Das ,  Kiet H. Lam ,  Vasu Vallabhaneni ,  Venkat Venkatsubra

    发明人： Ranadip Das ,  Kiet H. Lam ,  Vasu Vallabhaneni ,  Venkat Venkatsubra

    IPC分类号： H04J3/24

    CPC分类号： G06F9/5077 ,  G06F9/544 ,  G06F9/545

    摘要： A method for virtual segmentation off-load in a logically partitioned data processing system is provided. A data transmission protocol stack formats a data message for segmentation off-load to form a virtual segmentation off-load package. The size of the data message is larger than a size of a maximum transmission unit. A partition manager firmware copies the virtual segmentation off-load package from a first logical partition to a virtual Ethernet adapter associated with a second logical partition. The virtual segmentation off-load package is copied without performing a segmentation operation on the data message associated with the virtual segmentation off-load package.

    摘要翻译： 提供了一种在逻辑分区数据处理系统中进行虚拟分段卸载的方法。 数据传输协议栈格式化用于分割卸载的数据消息以形成虚拟分段卸载包。 数据消息的大小大于最大传输单元的大小。 分区管理器固件将虚拟分段卸载包从第一逻辑分区复制到与第二逻辑分区相关联的虚拟以太网适配器。 复制虚拟分段卸载包，而不对与虚拟分段卸载包相关联的数据消息执行分段操作。

    mSCTP based handover of a mobile device between non-intersecting networks
    9.
    发明授权
    mSCTP based handover of a mobile device between non-intersecting networks 有权
    基于mSCTP的移动设备在不相交网络之间切换

    公开(公告)号：US07236476B2

    公开(公告)日：2007-06-26

    申请号：US10677656

    申请日：2003-10-02

    申请人： Dwip N. Banerjee ,  Kavitha Vittal Murthy Baratakke ,  Vasu Vallabhaneni ,  Venkat Venkatsubra

    发明人： Dwip N. Banerjee ,  Kavitha Vittal Murthy Baratakke ,  Vasu Vallabhaneni ,  Venkat Venkatsubra

    IPC分类号： H04Q7/00 ,  H04L12/56

    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。

    Method and apparatus for address resolution protocol persistent in a network data processing system
    10.
    发明申请
    Method and apparatus for address resolution protocol persistent in a network data processing system 审中-公开
    用于地址解析协议的方法和装置在网络数据处理系统中持久存在

    公开(公告)号：US20060268851A1

    公开(公告)日：2006-11-30

    申请号：US11126121

    申请日：2005-05-10

    申请人： Kavitha Vittal Baratakke ,  Vinit Jain ,  Vasu Vallabhaneni ,  Venkat Venkatsubra

    发明人： Kavitha Vittal Baratakke ,  Vinit Jain ,  Vasu Vallabhaneni ,  Venkat Venkatsubra

    IPC分类号： H04L12/56

    CPC分类号： H04L29/12009 ,  H04L29/12018 ,  H04L61/10

    摘要： A method, apparatus, and computer instructions for transferring data in a network data processing system. Data is transferred to a destination in which an address resolution protocol entry is used to transfer this data to the destination. A determination is made as to whether the address resolution protocol entry will expire within a selected threshold while transferring data to the destination. If the address resolution protocol will expire within the selected threshold, the address resolution protocol entry is kept or retained to reduce the interruptions or delays in the transferring of the data.

    摘要翻译： 一种用于在网络数据处理系统中传送数据的方法，装置和计算机指令。 数据被传送到目的地，其中使用地址解析协议条目将该数据传送到目的地。 在将数据传送到目的地时，确定地址解析协议条目是否将在选定的阈值内到期。 如果地址解析协议在选定的阈值内到期，则保留或保留地址解析协议条目，以减少数据传输中的中断或延迟。