公开(公告)号：AU2003230036A1

公开(公告)日：2003-12-12

申请号：AU2003230036

申请日：2003-05-16

Applicant: IBM

Inventor： SABHIKHI RAVINDER KUMAR ,  PEYRAVIAN MOHAMMAD ,  RINALDI MARK ANTHONY ,  SIEGEL MICHAEL STEVEN

IPC: H04L47/724 ,  H04L12/40 ,  H04L12/56 ,  H04L12/43

Abstract: A Resource Reservation System includes a Token Generation Unit (TGU) which generates and circulates among nodes of a communications system a Slotted Token (SLT) message having sub-fields to carry identification number for each input port in a node and the resource available for each input port. On receiving the message the Resource Control Unit (RCU) in each node can write port identification number, available resource in appropriate sub-fields of the SLT message, and reserve resources in other nodes by adjusting information in the sub-field associated with the other nodes.

公开(公告)号：HK1052263A1

公开(公告)日：2003-09-05

申请号：HK03104440

申请日：2003-06-20

Applicant: IBM

Inventor： BASS BRIAN MITCHELL ,  CALVIGNAC JEAN LOUIS ,  HEDDES MARCO ,  SIEGEL MICHAEL STEVEN ,  VERPLANKEN FABRICE JEAN

IPC: H04L12/54 ,  H04L47/52 ,  H04L47/56 ,  H04Q11/04 ,  H04L ,  H04Q

Abstract: A system and method of moving information units from a network processor toward a data transmission network in a prioritized sequence which accommodates several different levels of service. The present invention includes a method and system for scheduling the egress of processed information units (or frames) from a network processing unit according to stored priorities associated with the various sources of the information units. The priorities in the preferred embodiment include a low latency service, a minimum bandwidth, a weighted fair queueing and a system for preventing a user from continuing to exceed his service levels over an extended period. The present invention includes a plurality of calendars with different service rates to allow a user to select the service rate which he desires. If a customer has chosen a high bandwidth for service, the customer will be included in a calendar which is serviced more often than if the customer has chosen a lower bandwidth.

公开(公告)号：HU0203823A2

公开(公告)日：2003-05-28

申请号：HU0203823

申请日：2000-12-21

Applicant: IBM

Inventor： BASS BRIAN MITCHELL ,  CALVIGNAC JEAN LOUIS ,  DAVIS GORDON TAYLOR ,  GALLO ANTHONY MATTEO ,  HEDDES MARCO ,  JENKINS STEVEN KENNETH ,  LEAVENS ROSS BOYD ,  SIEGEL MICHAEL STEVEN ,  VERPLANKEN FABRICE JEAN

IPC: H04L12/28 ,  H04L12/46 ,  H04L12/56 ,  H04L45/60 ,  G06F9/46

Abstract: A system and method of frame protocol classification and processing in a system for data processing (e.g., switching or routing data packets or frames). The present invention includes analyzing a portion of the frame according to predetermined tests, then storing key characteristics of the packet for use in subsequent processing of the frame. The key characteristics for the frame (or input information unit) include the type of layer 3 protocol used in the frame, the layer 2 encapsulation technique, the starting instruction address, flags indicating whether the frame uses a virtual local area network, and the identity of the data flow to which the frame belongs. Much of the analysis is preferably done using hardware so that it can be completed quickly and in a uniform time period. The stored characteristics of the frame are then used by the network processing complex in its processing of the frame. The processor is preconditioned with a starting instruction address and the location of the beginning of the layer 3 header as well as flags for the type of frame. That is, the instruction address or code entry point is used by the processor to start processing for a frame at the right place, based on the type of frame. Additional instruction addresses can be stacked and used sequentially at branches to avoid additional tests and branching instructions. Additionally, frames comprising a data flow can be processed and forwarded in the same order in which they are received.

公开(公告)号：MXPA02010054A

公开(公告)日：2003-03-10

申请号：MXPA02010054

申请日：2001-03-26

Applicant: IBM

Inventor： SIEGEL MICHAEL STEVEN

IPC: H04L12/54 ,  H04L47/52 ,  H04L47/56 ,  H04Q11/04 ,  H04L12/56

Abstract: Un sistema y metodo para mover unidades de informacion desde un procesador en red hacia una red de transmision de datos en una secuencia con prioridad que acomoda varios niveles diferentes de servicio. La presente invencion incluye un metodo y sistema para programar el egreso de unidades (o marcos) de informacion procesada desde una unidad de procesamiento en red de acuerdo con las prioridades almacenadas asociadas con las diversas fuentes de las unidades de informacion. Las prioridades en la modalidad preferida incluyen un servicio de tiempo de espera bajo, un ancho de banda minimo, una cola equitativa pesada y un sistema para prevenir a un usuario que no exceda sus niveles de servicio durante un periodo prolongado. La presente invencion incluye una pluralidad de calendarios con diferentes regimenes de servicio, para permitir a un usuario seleccionar el regimen de servicio que desee. Si un cliente ha elegido un ancho de banda alta para servicio, el cliente sera incluido en un calendario al que se le da servicio mas seguido que al cliente que ha elegido un ancho de banda bajo.

公开(公告)号：BR0015717A

公开(公告)日：2002-07-23

申请号：BR0015717

申请日：2000-12-21

Applicant: IBM

Inventor： BASS BRIAN MITCHELL ,  CALVIGNAC JEAN LOUIS ,  DAVIS GORDON TAYLOR ,  GALLO ANTHONY MATTEO ,  HEDDES MARCO ,  JENKINSS STEVEN KENNETH ,  LEAVENS ROSS BODY ,  SIEGEL MICHAEL STEVEN ,  VERPLANKEN FABRICE JEAN

IPC: H04L12/28 ,  H04L12/46 ,  H04L12/56 ,  H04L45/60 ,  G06F9/46 ,  H04L29/06

Abstract: A system and method of frame protocol classification and processing in a system for data processing (e.g., switching or routing data packets or frames). The present invention includes analyzing a portion of the frame according to predetermined tests, then storing key characteristics of the packet for use in subsequent processing of the frame. The key characteristics for the frame (or input information unit) include the type of layer 3 protocol used in the frame, the layer 2 encapsulation technique, the starting instruction address, flags indicating whether the frame uses a virtual local area network, and the identity of the data flow to which the frame belongs. Much of the analysis is preferably done using hardware so that it can be completed quickly and in a uniform time period. The stored characteristics of the frame are then used by the network processing complex in its processing of the frame. The processor is preconditioned with a starting instruction address and the location of the beginning of the layer 3 header as well as flags for the type of frame. That is, the instruction address or code entry point is used by the processor to start processing for a frame at the right place, based on the type of frame. Additional instruction addresses can be stacked and used sequentially at branches to avoid additional tests and branching instructions. Additionally, frames comprising a data flow can be processed and forwarded in the same order in which they are received.

公开(公告)号：CA2403193A1

公开(公告)日：2001-10-25

申请号：CA2403193

申请日：2001-03-26

Applicant: IBM

Inventor： BASS BRIAN MITCHELL ,  VERPLANKEN FABRICE JEAN ,  SIEGEL MICHAEL STEVEN ,  HEDDES MARCO ,  CALVIGNAC JEAN LOUIS

IPC: H04L12/54 ,  H04Q11/04 ,  H04L12/56

Abstract: A system and method of moving information units from a network processor toward a data transmission network in a prioritized sequence which accommodates several different levels of service. The present invention includes a method and system for scheduling the egress of processed information units (or frames) from a network processing unit according to stored priorities associated with the various sources of the information units. The priorities in the preferred embodiment include a low latency service, a minimum bandwidth, a weighted fair queueing and a system for preventing a user from continuing to exceed his service levels over an extended period. The present invention includes a plurality of calendars wit h different service rates to allow a user to select the service rate which he desires. If a customer has chosen a high bandwidth for service, the customer will be included in a calendar which is serviced more often than if the customer has chosen a lower bandwidth.

公开(公告)号：CA2316122A1

公开(公告)日：2001-07-04

申请号：CA2316122

申请日：2000-08-17

Applicant: IBM

Inventor： CALVIGNAC JEAN LOUIS ,  VERPLANKEN FABRICE JEAN ,  HEDDES MARCO C ,  JENKINS STEVEN KENNETH ,  TROMBLEY MICHAEL RAYMOND ,  SIEGEL MICHAEL STEVEN ,  BASS BRIAN MITCHELL

IPC: G06F12/06 ,  G06F12/00 ,  G06F12/02 ,  G06F13/00 ,  G06F13/16 ,  G06F15/167 ,  G11C11/407 ,  H04L12/56 ,  G11C7/10

Abstract: The ability of network processors to move data to and from dynamic random access memory (DRAM) chips used in computer systems is enhanced in several respects. In on e aspect of the invention, two double data rate DRAMS are used in parallel to double the bandwidth for increased throughput of data. The movement of data is further improved by setting 4 banks of full 'read' and 4 banks of full 'write' by the network processor for every repetition of the DRAM time clock. A scheme for randomized 'read' and 'write' access by the network processor is disclosed. This scheme is particularly applicable to networks such as Ethernet that utilize variabl e frame sizes.