公开(公告)号：WO2008092781B1

公开(公告)日：2008-12-11

申请号：PCT/EP2008050739

申请日：2008-01-23

Applicant: IBM ,  IBM UK ,  CARLSON SCOTT ,  CRABTREE DONALD ,  DAHLEN DENNIS ,  SEVIGNY DENISE ,  WIERBOWSKI JUDITH

Inventor： CARLSON SCOTT ,  CRABTREE DONALD ,  DAHLEN DENNIS ,  SEVIGNY DENISE ,  WIERBOWSKI JUDITH

IPC: H04L29/00

CPC classification number: H04J3/0644 ,  G06F1/14 ,  G06F15/16 ,  H04J3/0635 ,  H04J3/0641 ,  H04L29/06

Abstract: A stratum-1 configuration for a timing network is defined. The stratum-1 configuration includes a single active stratum-1 server usable in ensuring that the servers in the network use the same primary reference time to synchronize their clocks. The servers in the network are synchronizing to the same root primary reference time and synchronization accuracyis not dependent on the quality of an external time source or of the existence of an external time source at the stratum-1 server.

Abstract translation: 定义一个定时网络的stratum-1配置。 stratum-1配置包括一个单一的主动stratum-1服务器，可用于确保网络中的服务器使用相同的主基准时间来同步他们的时钟。 网络中的服务器正在同步到同一个根主参考时间，并且同步精度不依赖于外部时间源的质量或层1服务器上的外部时间源的存在。

公开(公告)号：WO2008092781A2

公开(公告)日：2008-08-07

申请号：PCT/EP2008050739

申请日：2008-01-23

Applicant: IBM ,  IBM UK ,  CARLSON SCOTT ,  CRABTREE DONALD ,  DAHLEN DENNIS ,  SEVIGNY DENISE ,  WIERBOWSKI JUDITH

Inventor： CARLSON SCOTT ,  CRABTREE DONALD ,  DAHLEN DENNIS ,  SEVIGNY DENISE ,  WIERBOWSKI JUDITH

IPC: H04L29/00

CPC classification number: H04J3/0644 ,  G06F1/14 ,  G06F15/16 ,  H04J3/0635 ,  H04J3/0641 ,  H04L29/06

Abstract: A stratum-1 configuration for a timing network is defined. The stratum-1 configuration includes a single active stratum-1 server usable in ensuring that the servers in the network use the same primary reference time to synchronize their clocks. The servers in the network are synchronizing to the same root primary reference time and synchronization accuracyis not dependent on the quality of an external time source or of the existence of an external time source at the stratum-1 server.

Abstract translation: 定义定时网络的层次1配置。 层次1配置包括单个活动层1服务器，可用于确保网络中的服务器使用相同的主参考时间来同步其时钟。 网络中的服务器正在同步到相同的根主参考时间，同步精度不依赖于外部时间源的质量或第1层服务器上外部时间源的存在。

公开(公告)号：CA2676117C

公开(公告)日：2017-04-11

申请号：CA2676117

申请日：2008-01-17

Applicant: IBM

Inventor： CARLSON SCOTT ,  CRABTREE DONALD ,  DAHLEN DENNIS ,  DHONDY NOSHIR ,  HACK MICHEL ,  SEVIGNY DENISE ,  SMITH RONALD SR ,  WIERBOWSKI JUDITH

IPC: H04J3/06

Abstract: Server time protocol (STP) messages and methods of exchange thereof are provided for facilitating synchronization of processing units of a timing network. The STP messages include exchange time parameters (XTP) commands and responses, and STP control (STC) commands and responses. XTP message exchange processing includes: generating an XTP message command at a first processing unit including a command transmit timestamp field set bythe first processing unit and a command receive timestamp field which is unset by the first processing unit; transmitting the XTP message command to a second processing unit; setting the command receive timestamp field in the XTP command with the time the XTP command is received at the second processing unit; and generating an XTP message response at the second processing unit, the message response including the command transmit timestamp set by the first processing unit and the command receive timestamp set by the second processing unit.

公开(公告)号：BRPI0806401A2

公开(公告)日：2011-09-06

申请号：BRPI0806401

申请日：2008-01-17

Applicant: IBM

Inventor： CARLSON SCOTT ,  DAHLEN DENNIS J ,  CRABTREE DONALD ,  DHONDY NOSHIR ,  HACK MICHEL ,  SEVIGNY DENISE ,  SMITH RONALD ,  WIERBOWSKI JUDITH

IPC: H04J3/06

Abstract: Server time protocol (STP) messages and methods of exchange thereof are provided for facilitating synchronization of processing units of a timing network. The STP messages include exchange time parameters (XTP) commands and responses, and STP control (STC) commands and responses. XTP message exchange processing includes: generating an XTP message command at a first processing unit including a command transmit timestamp field set by the first processing unit and a command receive timestamp field which is unset by the first processing unit; transmitting the XTP message command to a second processing unit; setting the command receive timestamp field in the XTP command with the time the XTP command is received at the second processing unit; and generating an XTP message response at the second processing unit, the message response including the command transmit timestamp set by the first processing unit and the command receive timestamp set by the second processing unit.

公开(公告)号：CA2676117A1

公开(公告)日：2008-08-07

申请号：CA2676117

申请日：2008-01-17

Applicant: IBM

Inventor： SEVIGNY DENISE ,  HACK MICHEL ,  DAHLEN DENNIS ,  DHONDY NOSHIR ,  CARLSON SCOTT ,  WIERBOWSKI JUDITH ,  CRABTREE DONALD ,  SMITH RONALD SR

IPC: H04J3/06

Abstract: Server time protocol (STP) messages and methods of exchange thereof are p rovided for facilitating synchronization of processing units of a timing net work. The STP messages include exchange time parameters (XTP) commands and r esponses, and STP control (STC) commands and responses. XTP message exchange processing includes: generating an XTP message command at a first processin g unit including a command transmit timestamp field set bythe first processi ng unit and a command receive timestamp field which is unset by the first pr ocessing unit; transmitting the XTP message command to a second processing u nit; setting the command receive timestamp field in the XTP command with the time the XTP command is received at the second processing unit; and generat ing an XTP message response at the second processing unit, the message respo nse including the command transmit timestamp set by the first processing uni t and the command receive timestamp set by the second processing unit.

公开(公告)号：CA2675645C

公开(公告)日：2017-11-07

申请号：CA2675645

申请日：2008-01-21

Applicant: IBM

Inventor： CARLSON SCOTT ,  CRABTREE DONALD ,  DAHLEN DENNIS ,  DHONDY NOSHIR ,  ELKO DAVID ,  HACK MICHEL ,  SEVIGNY DENISE ,  SMITH RONALD SR ,  WHITNEY DAVID ,  WIERBOWSKI JUDITH

IPC: H04J3/06

Abstract: A timing network is provided that includes a plurality of servers. The servers of the network obtain information used to maintain the servers in time synchronization, thus ensuring the integrity of the servers.

公开(公告)号：CA2675644C

公开(公告)日：2017-11-07

申请号：CA2675644

申请日：2008-01-17

Applicant: IBM

Inventor： CARLSON SCOTT ,  CRABTREE DONALD ,  DAHLEN DENNIS ,  DHONDY NOSHIR ,  ELKO DAVID ,  SEVIGNY DENISE ,  SMITH RONALD SR ,  WHITNEY DAVID ,  WIERBOWSKI JUDITH

IPC: H04J3/06

Abstract: Recoveryis provided in a timing network. A configuration is defined for that network, and in that configuration, an active primary server is identified that provides a clock source for the network. Additionally, an alternate server is identified that can perform the role of the active primary server, should the active primary server fail. In response to a failure of the primaryserver, the alternate server detects the failure and performs takeover of the primary server.

公开(公告)号：BRPI0806420A2

公开(公告)日：2011-09-06

申请号：BRPI0806420

申请日：2008-01-21

Applicant: IBM

Inventor： CARLSON SCOTT ,  DAHLEN DENNIS J ,  CRABTREE DONALD ,  DHONDY NOSHIR ,  ELKO DAVID ,  HACK MICHEL ,  SEVIGNY DENISE ,  SMITH RONALD ,  WHITNEY DAVID ,  WIERBOWSKI JUDITH

IPC: H04J3/06

Abstract: A timing network is provided that includes a plurality of servers. The servers of the network obtain information used to maintain the servers in time synchronization, thus ensuring the integrity of the servers.

公开(公告)号：AT511255T

公开(公告)日：2011-06-15

申请号：AT07802940

申请日：2007-08-28

Applicant: IBM

Inventor： CARLSON SCOTT ,  CRABTREE DONALD ,  DAHLEN DENNIS ,  DHONDY NOSHIR ,  ELKO DAVID ,  HACK MICHEL ,  KURDT GEORGETTE ,  SEVIGNY DENISE ,  SMITH RONALD ,  WHITNEY DAVID ,  WIERBOWSKI JUDITH

IPC: H04J3/06 ,  H04L29/06

Abstract: In a networked data processing system, the updating of timing parameters is carried out via a process in which the detection of the loss of communications with the network is not immediately employed as an indication of parameter invalidity but rather the process employs a system specific delay which permits actions such as server or link recovery to occur without necessitating the declaration of timing parameter invalidity.

公开(公告)号：MX2009007877A

公开(公告)日：2009-07-31

申请号：MX2009007877

申请日：2008-01-17

Applicant: IBM

Inventor： SMITH RONALD ,  CARLSON SCOTT ,  DAHLEN DENNIS ,  CRABTREE DONALD ,  DHONDY NOSHIR ,  HACK MICHEL ,  SEVIGNY DENISE ,  WIERBOWSKI JUDITH

IPC: H04J3/00

Abstract: Se describen mensajes de protocolo de tiempo de servidor STP y métodos de intercambio de los mismos para facilitar la sincronización de unidades de procesamiento de una red de temporización. Los mensajes de STP incluyen comandos de parámetros de tiempo de intercambio (XTP) y respuestas y comandos de control STP (STC) y respuestas. El procesamiento e intercambio de mensajes de XTP incluyen: generar un comando de mensaje de XTP en una primera unidad de procesamiento que incluye un campo de estampa de tiempo de transmisión de comandos ajustado por la primera unidad de procesamiento y un campo de estampa de tiempo de recepción de comandos que está sin ajustar por la primera unidad de procesamiento; transmitir el comando de mensaje de XTP a una segunda unidad de procesamiento, establecer el campo de estampa de tiempo de recepción de comandos en el comando de XTP con el tiempo en que el comando de XTP es recibido en la segunda unidad de procesamiento y generar una respuesta de mensaje de XTP en la segunda unidad de procesamiento, la respuesta de mensaje incluye la estampa de tiempo de transmisión de comandos establecida por la primera unidad de procesamiento y la estampa de tiempo de recepción de comandos establecida por la segunda unidad de procesamiento.