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    Flow control in computer networks
    13.
    发明授权
    Flow control in computer networks 失效
    计算机网络中的流量控制

    公开(公告)号：US07224670B2

    公开(公告)日：2007-05-29

    申请号：US10160507

    申请日：2002-06-03

    申请人： Clark Debs Jeffries ,  Jitesh Ramachandran Nair ,  Michael Steven Siegel ,  Rama Mohan Yedavalli

    发明人： Clark Debs Jeffries ,  Jitesh Ramachandran Nair ,  Michael Steven Siegel ,  Rama Mohan Yedavalli

    IPC分类号： H04L12/26

    CPC分类号： H04L47/30 ,  H04L47/10 ,  H04L47/29 ,  H04L47/32

    摘要： The decision within a packet processing device to transmit a newly arriving packet into a queue to await processing or to discard the same packet is made by a flow control method and system. The flow control is updated with a constant period determined by storage and flow rate limits. The update includes comparing current queue occupancy to thresholds and also comparing present queue occupancy to previous queue occupancy. The outcome of the update is a new transmit probability value. The value is stored for the subsequent period of flow control and packets arriving during that period are subject to a transmit or discard decision that uses that value.

    摘要翻译： 通过流控制方法和系统来进行分组处理装置中将新到达的分组发送到队列中等待处理或丢弃相同分组的决定。 流量控制以由存储和流量限制确定的恒定周期进行更新。 该更新包括将当前队列占用率与阈值进行比较，还将当前队列占用率与先前队列占用率进行比较。 更新的结果是新的传输概率值。 该值存储在随后的流量控制周期中，并且在该时间段期间到达的分组经受使用该值的发送或丢弃决定。

    Method and system for managing congestion in a network
    14.
    发明授权
    Method and system for managing congestion in a network 失效
    管理网络拥塞的方法和系统

    公开(公告)号：US06657962B1

    公开(公告)日：2003-12-02

    申请号：US09546651

    申请日：2000-04-10

    申请人： Peter Irma August Barri ,  Brian Mitchell Bass ,  Jean Louis Calvignac ,  Ivan Oscar Clemminck ,  Marco C. Heddes ,  Clark Debs Jeffries ,  Michael Steven Siegel ,  Fabrice Jean Verplanken ,  Miroslav Vrana

    发明人： Peter Irma August Barri ,  Brian Mitchell Bass ,  Jean Louis Calvignac ,  Ivan Oscar Clemminck ,  Marco C. Heddes ,  Clark Debs Jeffries ,  Michael Steven Siegel ,  Fabrice Jean Verplanken ,  Miroslav Vrana

    IPC分类号： H04L1256

    CPC分类号： H04L47/2441 ,  H04L47/10 ,  H04L47/12 ,  H04L47/30 ,  H04L47/32 ,  H04L49/103 ,  H04L49/3018 ,  H04L49/50 ,  H04L49/90

    摘要： A system for minimizing congestion in a communication system is disclosed. The system comprises at least one ingress system for providing data. The ingress system includes a first free queue and a first flow queue. The system also includes a first congestion adjustment module for receiving congestion indications from the free queue and the flow queue. The first congestion adjustment module generates end stores transmit probabilities and performs per packet flow control actions. The system further includes a switch fabric for receiving data from the ingress system and for providing a congestion indication to the ingress system. The system further includes at least one egress system for receiving the data from the switch fabric. The egress system includes a second free queue and a second flow queue. The system also includes a second congestion adjustment module for receiving congestion indications from the second free queue and the second flow queue. The second congestion adjustment module generates and stores transmit probabilities and performs per packet flow control actions. Finally, the system includes a scheduler for determining the order and timing of transmission of packets out the egress system and to another node or destination. A method and system in accordance with the present invention provides for a unified method and system for logical connection of congestion with the appropriate flow control responses. The method and system utilizes congestion indicators within the ingress system, egress system, and the switch fabric in conjunction with a coarse adjustment system and fine adjustment system within the ingress device and the egress device to intelligently manage the system.

    摘要翻译： 公开了一种用于最小化通信系统中的拥塞的系统。 该系统包括用于提供数据的至少一个入口系统。 入口系统包括第一空闲队列和第一流队列。 该系统还包括用于从空闲队列和流队列接收拥塞指示的第一拥塞调整模块。 第一拥塞调整模块生成终端存储发送概率并执行每个分组流控制动作。 该系统还包括用于从入口系统接收数据并向入口系统提供拥塞指示的交换结构。 该系统还包括用于从交换结构接收数据的至少一个出口系统。 出口系统包括第二空闲队列和第二流队列。 该系统还包括第二拥塞调整模块，用于从第二空闲队列和第二流队列接收拥塞指示。 第二拥塞调整模块生成并存储发送概率，并执行每个分组流控制动作。 最后，该系统包括一个调度器，用于确定出口系统和另一个节点或目的地的分组传输的顺序和定时。 根据本发明的方法和系统提供了用于将拥塞与适当流控制响应逻辑连接的统一方法和系统。 该方法和系统利用入口系统，出口系统和交换结构中的拥塞指示符与入口设备和出口设备内的粗调系统和精细调整系统结合，智能地管理系统。

    Flow control in computer networks
    15.
    发明授权
    Flow control in computer networks 失效
    计算机网络中的流量控制

    公开(公告)号：US07646709B2

    公开(公告)日：2010-01-12

    申请号：US11560088

    申请日：2006-11-15

    申请人： Clark Debs Jeffries ,  Jitesh Ramachandran Nair ,  Michael Steven Siegel ,  Rama Mohan Yedavalli

    发明人： Clark Debs Jeffries ,  Jitesh Ramachandran Nair ,  Michael Steven Siegel ,  Rama Mohan Yedavalli

    IPC分类号： H04L12/26

    CPC分类号： H04L47/30 ,  H04L47/10 ,  H04L47/29 ,  H04L47/32

    摘要： The decision within a packet processing device to transmit a newly arriving packet into a queue to await processing or to discard the same packet is made by a flow control method and system. The flow control is updated with a constant period determined by storage and flow rate limits. The update includes comparing current queue occupancy to thresholds and also comparing present queue occupancy to previous queue occupancy. The outcome of the update is a new transmit probability value. The value is stored for the subsequent period of flow control and packets arriving during that period are subject to a transmit or discard decision that uses that value.

    摘要翻译： 通过流控制方法和系统来进行分组处理装置中将新到达的分组发送到队列中等待处理或丢弃相同分组的决定。 流量控制以由存储和流量限制确定的恒定周期进行更新。 该更新包括将当前队列占用率与阈值进行比较，还将当前队列占用率与先前队列占用率进行比较。 更新的结果是新的传输概率值。 该值存储在随后的流量控制周期中，并且在该时间段期间到达的分组经受使用该值的发送或丢弃决定。

    Mixed queue scheduler
    16.
    发明授权
    Mixed queue scheduler 失效
    混合队列调度程序

    公开(公告)号：US06728253B1

    公开(公告)日：2004-04-27

    申请号：US09405691

    申请日：1999-09-24

    申请人： Clark Debs Jeffries ,  Marco C. Heddes ,  Mark Anthony Rinaldi ,  Michael Steven Siegel

    发明人： Clark Debs Jeffries ,  Marco C. Heddes ,  Mark Anthony Rinaldi ,  Michael Steven Siegel

    IPC分类号： H04L1256

    CPC分类号： H04L47/50 ,  H04L2012/5682

    摘要： A method and system are disclosed for allocating data input bandwidth from a source link to a plurality of N data queues each having a variable occupancy value, Qi(t), and a constant decrement rate, Di, where i designated the ith queue among the N queues. First, a threshold occupancy value, T, is designated for the N queues. During each time step of a repeating time interval, &Dgr;t, the occupancy value, Qi, is compared with T. In response to each and every of said N data queues having occupancy values exceeding T, pausing data transmission from the source link to the N data queues, such that overflow within the data queues is minimized. In response to at least one of the N data queues having an occupancy value less than or equal to T, selecting one among the N data queues to be incremented, and incrementing the selected data queue, such that underflow of the selected queue is minimized. In the context of scheduling one cell per time step, the value of T is one. Furthermore, the method of the present invention guarantees that output port occupancy shall never, in that context, exceed two cells.

    摘要翻译： 公开了一种用于将数据输入带宽从源链路分配给多个N个数据队列的方法和系统，每个N个数据队列具有可变占用值Qi（t）和常数递减率Di，其中i指定i < 排队N队列。 首先，为N个队列指定阈值占有率T。 在重复时间间隔的每个时间步长，Deltat，占用值Qi与T进行比较。响应于具有超过T的占用值的所述N个数据队列中的每一个，暂停从源链路到N的数据传输 数据队列，使数据队列中的溢出最小化。 响应于具有小于或等于T的占用值的N个数据队列中的至少一个，选择要增加的N个数据队列中的一个，并增加所选择的数据队列，使得所选队列的下溢最小化。 在每个时间步长调度一个单元格的上下文中，T的值为1。 此外，本发明的方法保证输出端口占用在这方面永远不超过两个小区。

    Network processor with single interface supporting tree search engine and CAM
    17.
    发明授权
    Network processor with single interface supporting tree search engine and CAM 失效
    具有单界面支持树搜索引擎和CAM的网络处理器

    公开(公告)号：US07167471B2

    公开(公告)日：2007-01-23

    申请号：US09940758

    申请日：2001-08-28

    申请人： Jean Louis Calvignac ,  Gordon Taylor Davis ,  Marco Heddes ,  Michael Steven Siegel

    发明人： Jean Louis Calvignac ,  Gordon Taylor Davis ,  Marco Heddes ,  Michael Steven Siegel

    IPC分类号： H04L12/56

    CPC分类号： H04L49/3009 ,  G11C15/00 ,  H04L45/745 ,  H04L45/7453 ,  H04L49/90

    摘要： A method and system for identifying a data structure associated with a packet of data. A processor internal to a packet processor may extract one or more fields in a packet header field of a received packet of data to generate a search key. The internal processor may then be configured to select which table, e.g., routing table, quality of service table, filter table, needs to be accessed using the search key in order to process the received packet of data. A determination may then be made by the internal processor as to whether a CAM or a hash table and a Patricia Tree are used to identify the data structure associated with the received packet of data. Based on table definitions in a register, the internal processor may make such a determination.

    摘要翻译： 一种用于识别与数据包相关联的数据结构的方法和系统。 分组处理器内部的处理器可以提取接收到的数据分组的分组报头字段中的一个或多个字段以生成搜索关键字。 然后可以将内部处理器配置为选择哪个表，例如路由表，服务质量表，过滤表，需要使用搜索关键字进行访问，以便处理接收的数据分组。 然后内部处理器可以确定CAM或散列表和Patricia Tree是否用于标识与所接收的数据分组相关联的数据结构。 根据寄存器中的表定义，内部处理器可以作出这样的确定。

    Network processor with single interface supporting tree search engine and CAM
    18.
    发明授权
    Network processor with single interface supporting tree search engine and CAM 失效
    具有单界面支持树搜索引擎和CAM的网络处理器

    公开(公告)号：US07953077B2

    公开(公告)日：2011-05-31

    申请号：US11457952

    申请日：2006-07-17

    申请人： Jean Louis Calvignac ,  Gordon Taylor Davis ,  Marco Heddes ,  Michael Steven Siegel

    发明人： Jean Louis Calvignac ,  Gordon Taylor Davis ,  Marco Heddes ,  Michael Steven Siegel

    IPC分类号： H04L12/56

    CPC分类号： H04L49/3009 ,  G11C15/00 ,  H04L45/745 ,  H04L45/7453 ,  H04L49/90

    摘要： A method and system for identifying a data structure associated with a packet of data. A processor internal to a packet processor may extract one or more fields in a packet header field of a received packet of data to generate a search key. The internal processor may then be configured to select which table, e.g., routing table, quality of service table, filter table, needs to be accessed using the search key in order to process the received packet of data. A determination may then be made by the internal processor as to whether a CAM or a hash table and a Patricia Tree are used to identify the data structure associated with the received packet of data. Based on table definitions in a register, the internal processor may make such a determination.

    摘要翻译： 一种用于识别与数据包相关联的数据结构的方法和系统。 分组处理器内部的处理器可以提取接收到的数据分组的分组报头字段中的一个或多个字段以生成搜索关键字。 然后可以将内部处理器配置为选择哪个表，例如路由表，服务质量表，过滤表，需要使用搜索关键字进行访问，以便处理接收的数据分组。 然后内部处理器可以确定CAM或散列表和Patricia Tree是否用于标识与所接收的数据分组相关联的数据结构。 根据寄存器中的表定义，内部处理器可以作出这样的确定。

    Apparatus and method to reserve resources in communications system
    19.
    发明授权
    Apparatus and method to reserve resources in communications system 有权
    通信系统中预留资源的装置和方法

    公开(公告)号：US07826476B2

    公开(公告)日：2010-11-02

    申请号：US11464892

    申请日：2006-08-16

    申请人： Mohammad Peyravian ,  Mark Anthony Rinaldi ,  Ravinder Kumar Sabhikhi ,  Michael Steven Siegel

    发明人： Mohammad Peyravian ,  Mark Anthony Rinaldi ,  Ravinder Kumar Sabhikhi ,  Michael Steven Siegel

    IPC分类号： H04L12/43

    CPC分类号： H04L47/724 ,  H04L41/0896 ,  H04L41/5003 ,  H04L47/26 ,  H04L47/70 ,  H04L47/829

    摘要： 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.

    摘要翻译： 资源预留系统包括令牌生成单元（TGU），其在通信系统的节点之间生成并循环具有子场的时隙令牌（SLT）消息，以携带节点中的每个输入端口的标识号，并且可用于每个 输入端口。 在接收消息时，每个节点中的资源控制单元（RCU）可以通过调整与其他节点相关联的子域中的信息，将端口标识号，可用资源写入SLT消息的适当子字段中，并在其他节点中预留资源 节点。