公开(公告)号：WO02060127A3

公开(公告)日：2003-02-20

申请号：PCT/IB0200208

申请日：2002-01-24

Applicant: IBM ,  IBM SCHWEIZ ,  SATRAN JULIAN ,  GERSHINSKY GIDON

Inventor： SATRAN JULIAN ,  GERSHINSKY GIDON

IPC: G06F12/00 ,  G06F13/00 ,  H04L12/18 ,  H04L12/56 ,  H04L29/08 ,  G06F17/30 ,  H04L29/06

CPC classification number: H04L12/185 ,  H04L12/1859 ,  H04L67/2842 ,  H04L67/2885 ,  H04L69/329

Abstract: A catching arrangement for the content of multicast transmission across a data network utilizes a first cache which receives content from one or more content providers. The first cache forms the root of a multilevel hierarchical tree. In accordance with configuration parameters, the first cache transmits the group directory to a plurality of subsidiary caches. The subsidiary caches may reorganize the group directory, and relay it to a lower level of subsidiary caches. The process is recursive, until a multicast group of end-user client is reached. Requests for content by the end-user clients are received by the lowest level cache, and forwarded as necessary to higher levels in the hierarchy. The content is then returned to the requestors. Various levels of caches retain the group directory and content according to configuration options, which can be adaptive to changing conditions such as demand, loading, and the like.

Abstract translation: 跨越数据网络的多播传输的内容的捕获布置利用从一个或多个内容提供商接收内容的第一缓存。 第一个缓存形成多级分层树的根。 根据配置参数，第一缓存将组目录发送到多个辅助高速缓存。 辅助高速缓存可以重组组目录，并将其转发到较低级别的子缓存。 该过程是递归的，直到达到最终用户客户端的多播组。 最终用户客户端对内容的请求由最低级缓存接收，并根据需要转发到层次结构中的较高级别。 然后将内容返回给请求者。 各种级别的缓存根据配置选项保留组目录和内容，配置选项可以适应诸如需求，加载等的变化条件。

公开(公告)号：WO02073882A3

公开(公告)日：2003-05-08

申请号：PCT/IB0200724

申请日：2002-03-12

Applicant: IBM ,  IBM SCHWEIZ ,  SATRAN JULIAN ,  GERSHINSKY GIDON ,  ROCHWERGER BENNY

Inventor： SATRAN JULIAN ,  GERSHINSKY GIDON ,  ROCHWERGER BENNY

IPC: H04L1/18 ,  H04L12/18

CPC classification number: H04L1/1854 ,  H04L12/1868 ,  H04L12/1886

Abstract: In a multicasting system (18) content is multicast from a sender (10) to a plurality of receivers over a data network. Each receiver independently determines whether it is missing elements or packets of the content. Receivers having missing content each initiate a random timer (20, 22, 24). The receiver having the shortest random interval unicasts a negative acknowledgment to the sender (10), which immediately multicasts the negative acknowledgment to the other receivers. All other receivers having the same missing packet thereupon suppress their own negative acknowledgments as to that packet. A repair transmission is then multicast by the sender to all receivers. The random intervals have upper and lower bounds according to the round trip transmission time and the size of the largest missing data element.

Abstract translation: 在多播系统（18）中，内容是通过数据网络从发送器（10）多播到多个接收器。 每个接收器独立地确定是否丢失了内容的元素或数据包。 丢失内容的接收者各自发起随机定时器（20,22,24）。 具有最短随机间隔的接收机向发送方（10）单播否定确认，其立即将否定确认多播到其他接收机。 具有相同丢失数据包的所有其他接收器随后抑制了对该数据包的否定确认。 然后，修复传输由发送者多播到所有接收者。 随机间隔具有根据往返传输时间和最大丢失数据元素的大小的上限和下限。

公开(公告)号：WO2008155206A3

公开(公告)日：2009-02-19

申请号：PCT/EP2008056657

申请日：2008-05-30

Applicant: IBM ,  IBM UK ,  DEKEL ELIEZER ,  GERSHINSKY GIDON ,  HARPAZ AVRAHAM ,  KRITS ALEXANDER ,  MANDLER BENJAMIN ,  NAAMAN NIR

Inventor： DEKEL ELIEZER ,  GERSHINSKY GIDON ,  HARPAZ AVRAHAM ,  KRITS ALEXANDER ,  MANDLER BENJAMIN ,  NAAMAN NIR

IPC: H04L29/06

CPC classification number: H04L12/1881 ,  H04L51/34

Abstract: A group communication service is adapted for multi-point to multi-point communication. Identical message streams are received by a tier of processing servers from a tier of sources. The processing servers deliver the message streams to a tier of destinations. The group communication service enables the processing servers to deal with newly added message streams and deleted message streams while preserving total ordering.

Abstract translation: 组通信服务适用于多点到多点通信。 相同消息流由一层处理服务器从源层接收。 处理服务器将消息流传递到目的地层。 组通信服务使得处理服务器能够处理新添加的消息流和删除的消息流，同时保持总的排序。

公开(公告)号：JP2011151841A

公开(公告)日：2011-08-04

申请号：JP2011060325

申请日：2011-03-18

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： CARMELI BOAZ ,  DUIGENAN JOHN JUSTIN ,  ELDER MICHAEL DAMEIN ,  GERSHINSKY GIDON

IPC: H04L9/08

CPC classification number: H04L63/0442 ,  H04L63/0428 ,  H04L63/062 ,  H04L63/065

Abstract: PROBLEM TO BE SOLVED: To securely communicate published information over a multicast communication channel without the need to generate a random key for each published information, regarding the published information of a hierarchical information aggregate. SOLUTION: A multicast host is provided for distributing information published about a plurality of topics to each of which a topic encryption key is related, to subscriber devices of these topics. The multicast host includes: a means for receiving information relating to a topic; means for accessing subscriber data 104 representing one or more users subscribing the topic; a means for retrieving a topic encryption key associated with the topic; means 150 for encrypting the information with the retrieved topic encryption key; and a means 152 for distributing the information to the one or more users. The topic encryption key is encrypted by using a logical key hierarchical structure, in which a logical key corresponds to the users, and distributed to the subscriber devices. COPYRIGHT: (C)2011,JPO&INPIT

Abstract translation: 要解决的问题：关于分层信息聚合的已发布信息，通过组播通信信道安全地传送已发布的信息，而不需要为每个发布的信息生成随机密钥。 解决方案：提供多播主机，用于将关于主题加密密钥相关的多个主题发布的信息分发给这些主题的订户设备。 多播主机包括：用于接收与主题有关的信息的装置; 用于访问代表订阅该主题的一个或多个用户的订户数据104的装置; 用于检索与该主题相关联的主题加密密钥的装置; 用于使用检索到的主题加密密钥加密信息的装置150; 以及用于将信息分发给一个或多个用户的装置152。 主题加密密钥通过使用逻辑密钥分层结构进行加密，其中逻辑密钥对应于用户，并分发给订户设备。 版权所有（C）2011，JPO＆INPIT

公开(公告)号：DE60214823D1

公开(公告)日：2006-11-02

申请号：DE60214823

申请日：2002-01-24

Applicant: IBM ,  IBM SCHWEIZ

Inventor： SATRAN JULIAN ,  GERSHINSKY GIDON

IPC: G06F12/00 ,  H04L12/18 ,  G06F13/00 ,  G06F17/30 ,  H04L12/56 ,  H04L29/06 ,  H04L29/08

Abstract: A caching arrangement for the content of multicast transmission across a data network utilizes a first cache which receives content from one or more content providers. Using the REMADE protocol, the first cache constructs a group directory. The first cache forms the root of a multilevel hierarchical tree. In accordance with configuration parameters, the first cache transmits the group directory to a plurality of subsidiary caches. The subsidiary caches may reorganize the group directory, and relay it to a lower level of subsidiary caches. The process is recursive, until a multicast group of end-user clients is reached. Requests for content by the end-user clients are received by the lowest level cache, and forwarded as necessary to higher levels in the hierarchy. The content is then returned to the requesters. Various levels of caches retain the group directory and content according to configuration options, which can be adaptive to changing conditions such as demand, loading, and the like. The behavior of the caches may optionally be modified by the policies of the content providers.

公开(公告)号：DE602008003558D1

公开(公告)日：2010-12-30

申请号：DE602008003558

申请日：2008-03-20

Applicant: IBM

Inventor： WRIGHT CORNELL JR ,  NAAMAN NIR ,  OKUNSEINDE FOLUSO OLAIYA ,  GERSHINSKY GIDON ,  HARPAZ AVRAHAM

IPC: H04L12/56 ,  H04J3/14 ,  H04L29/06

公开(公告)号：CA2649883C

公开(公告)日：2015-01-20

申请号：CA2649883

申请日：2007-06-14

Applicant: IBM

Inventor： DEKEL ELIEZER ,  DUIGENAN JOHN JUSTIN ,  GERSHINSKY GIDON ,  KRITS ALEXANDER ,  NAAMAN NIR ,  OKUNSEINDE FOLUSO OLAIYA ,  PIKE HILARY ALISON ,  WRIGHT CORNELL JR

IPC: H04L69/40

Abstract: Methods, apparatus, and products are disclosed for synchronizing an active feed adapter and a backup feed adapter in a high speed, low latency data communications environment that include brokering, by a stream administration server, establishment of an active message stream to a subscribing client device from an active feed adapter, the active message stream capable of communicating active application messages; brokering, by the server, establishment of a backup message stream to the client device from a backup feed adapter, the backup message stream capable of communicating backup application messages; receiving an active feed adapter state in backup messaging middleware of the backup adapter from active messaging middleware of the active adapter; determining, by the backup feed adapter, whether a backup feed adapter state is synchronized with the active feed adapter state; and administering, by the backup feed adapter, operation of the backup adapter in dependence upon the determining.

公开(公告)号：CA2571241A1

公开(公告)日：2006-01-05

申请号：CA2571241

申请日：2005-06-22

Applicant: IBM

Inventor： ELDER MICHAEL DAMEIN ,  GERSHINSKY GIDON ,  CARMELI BOAZ ,  DUIGENAN JOHN JUSTIN

IPC: H04L29/06

Abstract: A multicast host for communicating information published about any one of a set of topics to one or more authorised subscribers to those topics, the set of topics being partitioned into one or more partition elements, each partition element having a partition element encryption key associated therewith, wherein each of the one or more partition elements is a disjoint proper subset of the set of topics, the host comprising: means for receiving information relating to a topic; means for determining a partition element for the topic; means for retrieving a partition element encryption key associated with the partition element; means for encrypting the information with the retrieved partition element encryption key; and means for communicating the information to the one or more authorised subscribers.

公开(公告)号：CA2649883A1

公开(公告)日：2008-01-03

申请号：CA2649883

申请日：2007-06-14

Applicant: IBM

Inventor： DUIGENAN JOHN JUSTIN ,  GERSHINSKY GIDON ,  NAAMAN NIR ,  KRITS ALEXANDER ,  OKUNSEINDE FOLUSO OLAIYA ,  WRIGHT CORNELL JR ,  PIKE HILARY ALISON ,  DEKEL ELIEZER

IPC: H04L69/40

Abstract: Methods, apparatus, and products are disclosed for synchronizing an active feed adapter and a backup feed adapter in a high speed, low latency data communications environment that include brokering, by a stream administration server, establishment of an active message stream to a subscribing client device from an active feed adapter, the active message stream capable of communicating active application messages; brokering, by the server, establishment of a backup message stream to the client device from a backup feed adapter, the backup message stream capable of communicating backup application messages; receiving an active feed adapter state in backup messaging middleware of the backup adapter from active messaging middleware of the active adapter; determining, by the backup feed adapter, whether a backup feed adapter state is synchronized with the active feed adapter state; and administering, by the backup feed adapter, operation of the backup adapter in dependence upon the determining.

公开(公告)号：AT488935T

公开(公告)日：2010-12-15

申请号：AT08718087

申请日：2008-03-20

Applicant: IBM

Inventor： WRIGHT CORNELL ,  NAAMAN NIR ,  OKUNSEINDE FOLUSO OLAIYA ,  GERSHINSKY GIDON ,  HARPAZ AVRAHAM

IPC: H04L12/56 ,  H04J3/14 ,  H04L29/06

Abstract: Methods, systems, and products are disclosed for filtering application messages in a high speed, low latency data communications environment that include: receiving an application message in a transport engine of a message receiving device from a message transmitting device, the application message having a message contents label and a collision indicator, the message contents label representing contents of the application message, the collision indicator specifying whether the message contents label represents different contents in at least one other application message; determining, by the transport engine, whether contents of the application message satisfy a transport layer constraint in dependence upon the message contents label; providing, by the transport engine, the application message and the collision indicator to messaging middleware of the message receiving device if the contents of the application message satisfy the transport layer constraint; and administering the application message, by the messaging middleware, in dependence upon the collision indicator.