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1. 发明申请

WO2005018194A1 IMPROVED TCP PERFORMANCE DURING PACKET REORDERING 审中-公开
标题翻译：改进分组后的TCP性能
公开(公告)号：WO2005018194A1
公开(公告)日：2005-02-24
申请号：PCT/EP2004/051471
申请日：2004-07-13
申请人： INTERNATIONAL BUSINESS MACHINES CORPORATION , IBM UNITED KINGDOM LIMITED , BARATAKKE, Kavitha, Vittal, Murthy , JAIN, Vinit , VALLABHANENI, Vasu , VENKATSUBRA, Venkat
发明人： BARATAKKE, Kavitha, Vittal, Murthy , JAIN, Vinit , VALLABHANENI, Vasu , VENKATSUBRA, Venkat
IPC分类号： H04L29/06
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）时被还原回原始拥塞状态，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的增加的吞吐量继续运行。

2. 发明申请

WO2008080792A1 PATH MTU DISCOVERY IN NETWORK SYSTEM 审中-公开
标题翻译：网络系统中的路径MTU发现
公开(公告)号：WO2008080792A1
公开(公告)日：2008-07-10
申请号：PCT/EP2007/063891
申请日：2007-12-13
申请人： INTERNATIONAL BUSINESS MACHINES CORPORATION , IBM UNITED KINGDOM LIMITED , DAS, Ranadip , JAIN, Vinit , K, Uma , VENKATSUBRA, Venkat
发明人： DAS, Ranadip , JAIN, Vinit , K, Uma , VENKATSUBRA, Venkat
IPC分类号： H04L12/56
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。

3. 发明申请

WO2006064047A1 METHOD, SYSTEM AND ARTICLE FOR IMPROVED NETWORK PERFORMANCE BY AVOIDING DATA CORRUPTION 审中-公开
标题翻译：通过避免数据腐蚀改善网络性能的方法，系统和文章
公开(公告)号：WO2006064047A1
公开(公告)日：2006-06-22
申请号：PCT/EP2005/056832
申请日：2005-12-15
申请人： INTERNATIONAL BUSINESS MACHINES CORPORATION , IBM UNITED KINGDOM LIMITED , MANJUNATHA, Shankar , VALLABHANENI, Vasu , VENKATSUBRA, Venkat , YOUNGMAN, Richard, Perry
发明人： MANJUNATHA, Shankar , VALLABHANENI, Vasu , VENKATSUBRA, Venkat , YOUNGMAN, Richard, Perry
IPC分类号： H04L29/06
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.
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。

4. 发明申请

WO2008092765A1 NETWORK INTERFACE CARD TRANSMISSION CONTROL PROTOCOL ACCELERATION OFFLOAD FAILURE DETECTION AND RECOVERY MECHANISM 审中-公开
标题翻译：网络接口卡传输控制协议加速失灵检测和恢复机制
公开(公告)号：WO2008092765A1
公开(公告)日：2008-08-07
申请号：PCT/EP2008/050637
申请日：2008-01-21
申请人： INTERNATIONAL BUSINESS MACHINES CORPORATION , IBM UNITED KINGDOM LIMITED , CARDONA, Omar , CUNNINGHAM, James, Brian , DE LEON, Baltazar, III. , VENKATSUBRA, Venkat
发明人： CARDONA, Omar , CUNNINGHAM, James, Brian , DE LEON, Baltazar, III. , VENKATSUBRA, Venkat
IPC分类号： H04L29/06
CPC分类号： H04L69/16 , H04L69/12 , H04L69/161 , H04L69/40
摘要： A computer implemented method anddata processing system for the detection and recovery ofa network interface card TCP acceleration offload failure. Responsive to a failure to receive an acknowledgement of a transmission control protocol segment containing a request for a transmission control protocol offload function in a network interface card, the transmission control protocol segment is retransmitted without the request for a transmission controlprotocoloffload function. When an acknowledgement of the retransmitted transmission control protocol segment without the request for a transmission control protocol offload function is received, a counter is incremented which indicates a failure of the transmission control protocoloffload function. Responsive to the counter exceeding a predefined number of allowed failures, all requests to the transmission control protocol offload function for the network interface card are stopped.
摘要翻译：一种计算机实现的方法和数据处理系统，用于检测和恢复网络接口卡TCP加速卸载故障。响应于在网络接口卡中包含对传输控制协议卸载功能的请求的传输控制协议段的确认失败，传输控制协议段被重传而不需要传输控制解调加载功能。当接收到对重传的传输控制协议段的确认而没有发送控制协议卸载功能的请求时，计数器递增，表示传输控制原始卸载功能的故障。响应于计数器超过预定数量的允许故障，所有对网络接口卡的传输控制协议卸载功能的请求都将被停止。

5. 发明申请

WO2007118877A1 METHOD AND DATA PROCESSING SYSTEM FOR MANAGING A PLURALITY OF INTERFACES 审中-公开
标题翻译：用于管理多种接口的方法和数据处理系统
公开(公告)号：WO2007118877A1
公开(公告)日：2007-10-25
申请号：PCT/EP2007/053714
申请日：2007-04-17
申请人： INTERNATIONAL BUSINESS MACHINES CORPORATION , IBM UNITED KINGDOM LIMITED , BANERJEE, Dwip , RAMALINGAM, Kavitha , SRIHARI, Prithvi , VENKATSUBRA, Venkat
发明人： BANERJEE, Dwip , RAMALINGAM, Kavitha , SRIHARI, Prithvi , VENKATSUBRA, Venkat
IPC分类号： G06F9/46
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子集，其中应用程序监听接口的子集。

6. 发明申请

WO2007060056A1 SNOOP ECHO RESPONSE EXTRACTOR 审中-公开
标题翻译： SNOOP ECHO反应萃取器
公开(公告)号：WO2007060056A1
公开(公告)日：2007-05-31
申请号：PCT/EP2006/067191
申请日：2006-10-09
申请人： INTERNATIONAL BUSINESS MACHINES CORPORATION , IBM UNITED KINGDOM LIMITED , BROWN, Tristan, Anthony , MULLEN, Shawn, Patrick , VENKATSUBRA, Venkat
发明人： BROWN, Tristan, Anthony , MULLEN, Shawn, Patrick , VENKATSUBRA, Venkat
IPC分类号： H04L29/06
CPC分类号： H04L29/06877 , H04L29/06891 , H04L63/1408 , H04L63/1433 , H04L63/145 , H04L63/1466 , H04L63/1475 , H04L63/1491
摘要： A mechanism is provided for identifying a snooping device in a network environment. A snoop echo response extractor generates an echo request packet with a bogus MAC address that will only be received by a snooping device. The snoop echo response extractor also uses an IP address that will cause the snooping device to respond to the echo request.
摘要翻译：提供了一种用于在网络环境中识别窥探设备的机制。侦听回声响应提取器生成一个只能被窥探设备接收的伪MAC地址的回显请求报文。窥探回波响应提取器还使用将使窥探设备响应回显请求的IP地址。

7. 发明申请

WO2005041521A1 METHOD, SYSTEM AND ARTICLE FOR DYNAMIC REAL-TIME STREAM AGGREGATION IN A NETWORK 审中-公开
标题翻译：网络动态实时流聚合的方法，系统和文章
公开(公告)号：WO2005041521A1
公开(公告)日：2005-05-06
申请号：PCT/EP2004/051966
申请日：2004-08-31
申请人： INTERNATIONAL BUSINESS MACHINES CORPORATION , Compagnie IBM FRANCE , VENKATSUBRA, Venkat , JAIN, Vinit
发明人： VENKATSUBRA, Venkat , JAIN, Vinit
IPC分类号： H04L29/06
CPC分类号： H04L65/4092 , H04L29/06027 , H04L65/608
摘要： A graphic user interface of a network client (106) includes a stock ticker from a stock server (110) and a news sidebar from a news server (112) over the IP addresses advertised to the client (106) in its list of mutli-homed addresses from the video server (104) specified under Stream Control Transmission Protocol (SCTP). The client accepts real-time data from the stock exchange server and the news agency server on the multi-homed IP addresses designated in the association with the video server (104) without knowing that the data is coming from a different source than the video server (104) . The realtime data feeds from the video, stock and news servers are aggregated on the client (106) with enhanced speed because the feeds come directly to the client and not via the video server. The operating systems of the home server and remote servers utilize SCTP and specialized commands to implement the enhanced speed of real-time data aggregation being streamed to network clients without requiring modifications to existing client systems.
摘要翻译：网络客户端（106）的图形用户界面包括来自库存服务器（110）的股票行情和来自新闻服务器（112）的新闻侧栏，通过在其列表中通告给客户端（106）的IP地址，来自在流控制传输协议（SCTP）下指定的视频服务器（104）的归属地址。客户端接收来自证券交易所服务器和通讯社服务器的与视频服务器（104）相关联指定的多归属IP地址的实时数据，而不知道数据来自与视频服务器不同的源（104）。来自视频，股票和新闻服务器的实时数据馈送以增强的速度聚合在客户端（106）上，因为馈送直接进入客户端而不经由视频服务器。家庭服务器和远程服务器的操作系统使用SCTP和专用命令来实现流式传输到网络客户端的实时数据聚合的增强速度，而不需要修改现有的客户端系统。

8. 发明申请

WO2009077292A1 FAILOVER IN A HOST CONCURRENTLY SUPPORTING MULTIPLE VIRTUAL IP ADDRESSES ACROSS MULTIPLE ADAPTERS 审中-公开
标题翻译：在多个适配器中支持同时支持多个虚拟IP地址的主机故障
公开(公告)号：WO2009077292A1
公开(公告)日：2009-06-25
申请号：PCT/EP2008/066080
申请日：2008-11-24
申请人： INTERNATIONAL BUSINESS MACHINES CORPORATION , IBM UNITED KINGDOM LIMITED , JAIN, Vinit , LEPAKSHAIAH, Mallesh , MURRAY, Elizabeth, Jean , VENKATSUBRA, Venkat
发明人： JAIN, Vinit , LEPAKSHAIAH, Mallesh , MURRAY, Elizabeth, Jean , VENKATSUBRA, Venkat
IPC分类号： H04L29/12 , H04L29/14
CPC分类号： H04L29/12028 , H04L61/103 , H04L69/18 , H04L69/40
摘要： A host enables any adapter of multiple adapters of the host to concurrently support any VIPA of the multiple VIPAs assigned to the host. Responsive to a failure of at least one particular adapter from among the multiple adapters, the host triggers the remaining, functioning adapters to broadcast a separate hardware address update for each VIPA over the network, such that for a failover in the host supporting the multiple VIPAs the host directs at least one other host accessible via the network to address any new packets for the multiple VIPAs to one of the separate hardware addresses of one of the remaining adapters.
摘要翻译：主机允许主机的多个适配器的任何适配器同时支持分配给主机的多个VIPA的任何VIPA。响应于多个适配器中的至少一个特定适配器的故障，主机触发剩余的功能适配器以通过网络为每个VIPA广播单独的硬件地址更新，使得对于支持多个VIPA的主机中的故障转移主机引导至少一个可通过网络访问的其他主机，将多个VIPA的任何新数据包解析为其余一个适配器之一的单独硬件地址之一。

9. 发明申请

WO2008087210A1 METHOD FOR SECURING INFORMATION DISPLAYED ON A COMPUTER MONITOR 审中-公开
标题翻译：用于保护显示在计算机监视器上的信息的方法
公开(公告)号：WO2008087210A1
公开(公告)日：2008-07-24
申请号：PCT/EP2008/050579
申请日：2008-01-18
申请人： INTERNATIONAL BUSINESS MACHINES CORPORATION , IBM UNITED KINGDOM LIMITED , BANERJEE, Dwip , DAS, Ranadip , PATIL, Sandeep, Ramesh , VENKATSUBRA, Venkat
发明人： BANERJEE, Dwip , DAS, Ranadip , PATIL, Sandeep, Ramesh , VENKATSUBRA, Venkat
IPC分类号： G06F21/04
CPC分类号： G06F21/84
摘要： A method and system ofsecuring information displayed on a computer monitor. Information is displayed in an application on a computer, wherein the application is registered in a registration list comprising a list of all applications containing informationto be secured. A monitoring device is used to monitor an area around a user of the computer for a possible intruder. Responsive to detecting a possible intruder, an action for securing the information displayed on the computer is identified based on the applications specified in the registration list. The action is then executed.
摘要翻译：一种在计算机显示器上显示信息的方法和系统。信息显示在计算机上的应用程序中，其中应用程序被登记在包括包含要被保护的信息的所有应用程序的列表的注册列表中。监视设备用于监视计算机的用户周围的区域以获得可能的入侵者。响应于检测可能的入侵者，基于在注册列表中指定的应用来识别用于保护显示在计算机上的信息的动作。然后执行该操作。

10. 发明申请

WO2008043648A1 METHOD AND APPARATUS FOR UPDATING A DOMAIN NAME SERVER 审中-公开
标题翻译：更新域名服务器的方法和设备
公开(公告)号：WO2008043648A1
公开(公告)日：2008-04-17
申请号：PCT/EP2007/059890
申请日：2007-09-19
申请人： INTERNATIONAL BUSINESS MACHINES CORPORATION , IBM UNITED KINGDOM LIMITED , RAMALINGAM, Kavitha , SRIHARI, Prithvi , VALLABHANENI, Vasu , VENKATSUBRA, Venkat
发明人： RAMALINGAM, Kavitha , SRIHARI, Prithvi , VALLABHANENI, Vasu , VENKATSUBRA, Venkat
IPC分类号： H04L29/12
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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