公开(公告)号：JP2003271402A

公开(公告)日：2003-09-26

申请号：JP2003025908

申请日：2003-02-03

Applicant: Internatl Business Mach Corp ,  インターナショナル・ビジネス・マシーンズ・コーポレーション

Inventor： BROWN DEANNA ,  JAIN VINIT ,  MESSING JEFFREY P ,  SHARMA SATYA P ,  VENKATSUBRA VENKAT

IPC: G06F9/46 ,  G06F9/445 ,  G06F9/54 ,  G06F12/08 ,  G06F12/14 ,  G06F12/16 ,  G06F13/00 ,  G06F13/28 ,  G06F15/16 ,  G06F15/167

CPC classification number: G06F9/445

Abstract: PROBLEM TO BE SOLVED: To provide a method, system and apparatus for multicasting or broadcasting a piece of data from one partition of a partitioned computer system to a plurality of partitions of the system.
SOLUTION: When a partition in the partitioned computer system needs to transfer data to more than one partition of the system, the partition first stores the data into a global memory accessible by all partitions of the system. The memory is then marked 'read-only' to ensure that the data is not over-written by the remaining partitions, and the IDs (identifications) of the recipient partitions are passed to a piece of firmware or hardware of the computer system. This piece of firmware or the hardware alerts the recipient partitions that there is a piece of data ready to be read in the memory. Once all the recipient partitions have read the data, the global memory is reverted to a 'read' and 'write' memory.
COPYRIGHT: (C)2003,JPO

Abstract translation: 要解决的问题：提供一种从分区计算机系统的一个分区向系统的多个分区组播或广播一条数据的方法，系统和装置。 解决方案：当分区计算机系统中的分区需要将数据传输到系统的多个分区时，分区首先将数据存储到可由系统的所有分区访问的全局存储器中。 然后将内存标记为“只读”，以确保其余分区不会覆盖数据，并将收件人分区的ID（标识）传递到计算机系统的一个固件或硬件。 这块固件或硬件会警告收件人分区，有一块数据准备好在内存中读取。 一旦所有的收件人分区都读取了数据，则全局内存将被还原为“读取”和“写入”内存。 版权所有（C）2003，JPO

公开(公告)号：JP2004005443A

公开(公告)日：2004-01-08

申请号：JP2003045463

申请日：2003-02-24

Applicant: IBM

Inventor： JAIN VINIT ,  MESSING JEFFREY PAUL ,  SHARMA RAKESH ,  SHARMA SATYA PRAKESH ,  VENKATSUBRA VENKAT

IPC: G06F9/455 ,  G06F9/46 ,  G06F9/50 ,  G06F13/00

Abstract: PROBLEM TO BE SOLVED: To provide a method for transferring data from one partition of a partitioned system to another partition without using a network. SOLUTION: When a first partition needs to transfer data to a second partition, data located in a portion of the first partition of a partitioned memory of the system is marked as read-only data to be indicated to firmware or hardware of the partitioned system. When notified, the firmware or hardware of the partitioned system re-assigns a memory location including the data to the second partition, and passes a pointer to the second partition. The second partition checks to see whether or not the data is actually read-only data. If so, the data is read, or else it is not read. After reading the data, the second partition notifies the firmware or the hardware so that, as a result, the memory location of the data can be re-assigned to the first partition. COPYRIGHT: (C)2004,JPO

公开(公告)号：JP2005117650A

公开(公告)日：2005-04-28

申请号：JP2004286650

申请日：2004-09-30

Applicant: Internatl Business Mach Corp ,  インターナショナル・ビジネス・マシーンズ・コーポレーションInternational Business Maschines Corporation

Inventor： BANERJEE DWIP N ,  BARATAKKE KAVITHA VITTAL MURTH ,  VALLABHANENI VASU ,  VENKATSUBRA VENKAT

IPC: H04W36/00 ,  H04W80/06 ,  H04W88/14 ,  H04Q7/22 ,  H04Q7/38

CPC classification number: H04W36/0011 ,  H04W80/06 ,  H04W88/14

Abstract: PROBLEM TO BE SOLVED: To provide a method and system for performing mSTCP based handover of a mobile device between non-intersecting networks.
SOLUTION: In response to detecting a need for a mobile device to transfer out of a first network, requests are sent to a communication endpoint in mSCTP. The first request is to stop transmission to a first address. The second request is to add an intermediary address of a mobility support service designed 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.
COPYRIGHT: (C)2005,JPO&NCIPI

Abstract translation: 要解决的问题：提供一种用于在非相交网络之间执行基于mSTCP的移动设备切换的方法和系统。 解决方案：响应于检测到需要移动设备从第一网络传出，请求被发送到mSCTP中的通信端点。 第一个请求是停止传输到第一个地址。 第二个请求是在发送第一个请求时添加一个移动支持服务的中间地址，用于接收已经传输的任何通信。 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。 版权所有（C）2005，JPO＆NCIPI

公开(公告)号：CA2699314C

公开(公告)日：2016-03-29

申请号：CA2699314

申请日：2008-11-24

Applicant: IBM

Inventor： JAIN VINIT ,  LEPAKSHAIAH MALLESH ,  MURRAY ELIZABETH JEAN ,  VENKATSUBRA VENKAT

IPC: H04L69/40

Abstract: 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.

公开(公告)号：CA2535759A1

公开(公告)日：2005-05-06

申请号：CA2535759

申请日：2004-08-31

Applicant: IBM

Inventor： VENKATSUBRA VENKAT ,  JAIN VINIT

IPC: H04L29/06

Abstract: 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 t he 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 sto ck exchange server and the news agency server on the multi-homed IP addresses designated in the association with the video server (104) without knowing th at the data is coming from a different source than the video server (104) . The real~time data feeds from the video, stock and news servers are aggregated o n 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 serve r and remote servers utilize SCTP and specialized commands to implement the enhanced speed of real-time data aggregation being streamed to network clien ts without requiring modifications to existing client systems.

公开(公告)号：DE602008005937D1

公开(公告)日：2011-05-12

申请号：DE602008005937

申请日：2008-11-24

Applicant: IBM

Inventor： JAIN VINIT ,  LEPAKSHAIAH MALLESH ,  MURRAY ELIZABETH JEAN ,  VENKATSUBRA VENKAT

IPC: H04L69/40

公开(公告)号：CA2666425A1

公开(公告)日：2008-07-10

申请号：CA2666425

申请日：2007-12-13

Applicant: IBM

Inventor： K UMA ,  JAIN VINIT ,  DAS RANADIP ,  VENKATSUBRA VENKAT

IPC: H04L12/56 ,  H04L47/36

Abstract: A method, computer program product, and data processing system for effici ently discovering and storing path MTU information in a sending host are dis closed. In a preferred embodiment, two path MTU tables are maintained. One p ath MTU table contains MTU values corresponding to the first-hop routers ass ociated with the sending host. The other path MTU table contains MTU values corresponding to individual destination hosts. When the sending host needs t o send information to a destination, it first consults the MTU table associa ted 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 se nding host consults the MTU table for the first-hop router on the path to th e 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.

公开(公告)号：CA2630664A1

公开(公告)日：2007-05-31

申请号：CA2630664

申请日：2006-10-09

Applicant: IBM

Inventor： BROWN TRISTAN ANTHONY ,  VENKATSUBRA VENKAT ,  MULLEN SHAWN PATRICK

IPC: H04L29/06

Abstract: A mechanism is provided for identifying a snooping device in a network environment. A snoop echo response extractor generates an echo request packe t with a bogus MAC address that will only be received by a snooping device. Th e snoop echo response extractor also uses an IP address that will cause the snooping device to respond to the echo request.

公开(公告)号：BRPI0720327A2

公开(公告)日：2013-12-24

申请号：BRPI0720327

申请日：2007-12-13

Applicant: IBM

Inventor： DAS RANADIP ,  JAIN VINIT ,  UMA K ,  VENKATSUBRA VENKAT

IPC: H04L47/36

Abstract: 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.

公开(公告)号：AT546940T

公开(公告)日：2012-03-15

申请号：AT08701602

申请日：2008-01-21

Applicant: IBM

Inventor： CARDONA OMAR ,  CUNNINGHAM JAMES ,  DE LEON BALTAZAR ,  VENKATSUBRA VENKAT

IPC: H04L69/40

Abstract: A computer implemented method and data processing system for the detection and recovery of a 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 control protocol offload 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 protocol offload 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.