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公开(公告)号：US08327022B2
公开(公告)日：2012-12-04
申请号：US11539897
申请日：2006-10-10
IPC分类号： G06F15/16
CPC分类号： H04L29/12066 , H04L29/12301 , H04L61/1511 , H04L61/2076 , H04L69/40
摘要： A computer implemented method, apparatus, system, and computer usable program code for updating a domain name server. In response to detecting a failed network interface in a plurality of network interfaces on a content server, the content server identifies an IP address for the failed network interface. The content server notifies a domain name server that the IP address for the failed network interface is an unreachable IP address. The domain name server does not provide the unreachable IP address to a querying client.
摘要翻译： 用于更新域名服务器的计算机实现的方法，装置，系统和计算机可用程序代码。 响应于检测内容服务器上的多个网络接口中的故障网络接口，内容服务器识别出故障网络接口的IP地址。 内容服务器通知域名服务器失败的网络接口的IP地址是不可达到的IP地址。 域名服务器不向查询客户端提供不可达到的IP地址。
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公开(公告)号：US20080086556A1
公开(公告)日：2008-04-10
申请号：US11539897
申请日：2006-10-10
IPC分类号： G06F15/173
CPC分类号： H04L29/12066 , H04L29/12301 , H04L61/1511 , H04L61/2076 , H04L69/40
摘要： A computer implemented method, apparatus, system, and computer usable program code for updating a domain name server. In response to detecting a failed network interface in a plurality of network interfaces on a content server, the content server identifies an IP address for the failed network interface. The content server notifies a domain name server that the IP address for the failed network interface is an unreachable IP address. The domain name server does not provide the unreachable IP address to a querying client.
摘要翻译： 用于更新域名服务器的计算机实现的方法，装置，系统和计算机可用程序代码。 响应于检测内容服务器上的多个网络接口中的故障网络接口，内容服务器识别出故障网络接口的IP地址。 内容服务器通知域名服务器失败的网络接口的IP地址是不可达到的IP地址。 域名服务器不向查询客户端提供不可达到的IP地址。
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3.发明申请公开(公告)号：US20070245005A1
公开(公告)日：2007-10-18
申请号：US11406185
申请日：2006-04-18
IPC分类号： G06F15/173
CPC分类号： G06F9/54
摘要： The illustrative embodiments provide a computer implemented method, a data processing system, and a computer program product for managing a plurality of interfaces. An application selects a subset of the plurality of interfaces. In response to the selection, the application is bound to the subset of interfaces, wherein the application listens to the subset of interfaces.
摘要翻译： 说明性实施例提供了一种用于管理多个接口的计算机实现的方法，数据处理系统和计算机程序产品。 应用程序选择多个接口的子集。 响应于选择，应用程序被绑定到接口的子集，其中应用程序监听接口的子集。
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4.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
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。
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5.发明授权Method, system and article for improved network performance by avoiding IP-ID wrap-arounds causing data corruption on fast networks 失效方法，系统和文章，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：US07564843B2
公开(公告)日：2009-07-21
申请号：US11014552
申请日：2004-12-16
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.
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。
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6.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
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。
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公开(公告)号：US20050286455A1
公开(公告)日：2005-12-29
申请号：US10875897
申请日：2004-06-24
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。
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公开(公告)号：US07571247B2
公开(公告)日：2009-08-04
申请号：US11301106
申请日：2005-12-12
IPC分类号： G06F15/16
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。
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公开(公告)号：US08275750B2
公开(公告)日：2012-09-25
申请号：US11557795
申请日：2006-11-08
CPC分类号： G06F17/30073 , G06F17/30138
摘要： A computer implemented method, data processing system, and computer program product for efficiently using disk space when unarchiving files in the same file system. An archive file is read to identify a total number of data files in the archive file. The number of headers in the archive file is determined based on the total number of data files. A location in a first disk space of a largest data file in the archive file is determined from an offset in a header corresponding to the largest data file. The largest data file is then copied from the first disk space to a second disk space. The first disk space occupied by the largest data file is then released by truncating the archive file. The obtaining, copying, and releasing steps are repeated for each data file in the archive file until all of the data files are unarchived.
摘要翻译： 一种计算机实现的方法，数据处理系统和计算机程序产品，用于在同一文件系统中解压缩文件时有效地使用磁盘空间。 读取归档文件以识别归档文件中的数据文件的总数。 存档文件中的标题数量是根据数据文件的总数确定的。 存档文件中最大数据文件的第一磁盘空间中的位置是从与最大数据文件对应的标题的偏移量确定的。 然后将最大的数据文件从第一个磁盘空间复制到第二个磁盘空间。 最大数据文件占用的第一个磁盘空间然后通过截断存档文件来释放。 对归档文件中的每个数据文件重复获取，复制和释放步骤，直到所有数据文件都解除归档。
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10.发明授权公开(公告)号：US08364824B2
公开(公告)日：2013-01-29
申请号：US12130440
申请日：2008-05-30
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。
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