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    • 2. 发明申请
    • SWITCHING ARRANGEMENT AND METHOD WITH SEPARATED OUTPUT BUFFERS
    • 具有分离输出缓冲器的切换布局和方法
    • WO2002069668A1
    • 2002-09-06
    • PCT/IB2002/000548
    • 2002-02-25
    • INTERNATIONAL BUSINESS MACHINES CORPORATIONBENNER, Alan, F.ENGBERSEN, AntoniusGOLDRIAN, Gottfried, A.LUIJTEN, Ronald, P.
    • BENNER, Alan, F.ENGBERSEN, AntoniusGOLDRIAN, Gottfried, A.LUIJTEN, Ronald, P.
    • H04Q11/04
    • H04L49/3081H04L49/203H04L2012/5635H04L2012/5672H04L2012/5679H04L2012/5681H04Q11/0478
    • The invention proposes a switching arrangement for transporting data packets from input ports of a switching device to output ports thereof. The data packets comprise a payload. The switching device is able to route the arriving data packets according to data packet destination information to at least one dedicated of the output ports. The switching arrangement comprises for each set of input ports in the switching device a set of output buffers. Such a set of input ports may comprise one or several input ports. The set of output buffers comprises for each set of output ports an output buffer for storing at least the payload of each data packet arriving at the corresponding input port, belonging to the set of input ports, at an address in at least those of the output buffers which pertain to the same set of output buffers, and which belong to the dedicated output ports. A set of output ports may comprise one or several output ports. For at least one of the output buffers a set of output queues is arranged which comprises for each output port an output queue, for storing therein, sorted according to the data packet destination information, the address of each payload stored in the corresponding output buffer. For the output queues which pertain to the same output port an arbiter controls a readout order of the stored addresses. For the output buffers which pertain to the same set of output ports a multiplexer multiplexes according to the readout order the stored payloads from the output buffers to the output ports.
    • 本发明提出了一种用于将数据分组从交换设备的输入端口传送到其输出端口的切换装置。 数据分组包括有效载荷。 交换设备能够根据数据分组目的地信息将到达的数据分组路由到至少一个专用的输出端口。 开关装置包括用于开关装置中的每组输入端口的一组输出缓冲器。 这样一组输入端口可以包括一个或多个输入端口。 所述输出缓冲器组包括用于每组输出端口的输出缓冲器,用于至少存储属于所述一组输入端口的到达对应输入端口的每个数据分组的有效载荷,所述输入缓冲器至少在所述输出端口的地址处 属于同一组输出缓冲区的属于专用输出端口的缓冲区。 一组输出端口可以包括一个或多个输出端口。 对于输出缓冲器中的至少一个,布置了一组输出队列,其包括针对每个输出端口的输出队列,用于存储其中根据数据分组目的地信息分类的输出队列,存储在相应输出缓冲器中的每个有效载荷的地址。 对于与相同输出端口相关的输出队列,仲裁器控制存储地址的读出顺序。 对于与同一组输出端口相关的输出缓冲器,复用器根据读出顺序将存储的有效载荷从输出缓冲器复用到输出端口。
    • 3. 发明申请
    • CACHE ENTRY SELECTION METHOD AND APPARATUS
    • CACHE入选选择方法和设备
    • WO2002076042A1
    • 2002-09-26
    • PCT/IB2002/000822
    • 2002-03-15
    • INTERNATIONAL BUSINESS MACHINES CORPORATIONLUIJTEN, Ronald, P.HERKERSDORF, Andreas
    • LUIJTEN, Ronald, P.HERKERSDORF, Andreas
    • H04L12/56
    • H04L45/00H04L45/30H04L45/54H04L45/742H04L49/205H04L49/25
    • A method for selectively inserting cache entries into a cache memory is proposed in which incoming data packets are directed to output links according to address information. The method comprises the following steps: a) an evaluation step for evaluating for each incoming data packet classification information which is relevant to the type of traffic flow or to the traffic priority to which the data packet is associated; b) a selection step for selecting based on the result of the evaluation step whether for the data packet the cache entry is to be inserted into the cache memory; c) an entry step for inserting as the cache entry into the cache memory, in the case the result of the selection step is that the cache entry is to be inserted, for the data packet the address information and associated output link information.
    • 提出了一种将高速缓存条目选择性地插入到高速缓冲存储器中的方法,其中根据地址信息将输入数据分组引导到输出链路。 该方法包括以下步骤:a)用于评估与业务流的类型相关的每个输入数据分组分类信息或数据分组所关联的业务优先级的评估步骤; b)选择步骤,用于基于评估步骤的结果来选择是否将高速缓存条目插入到高速缓冲存储器中的数据包; c)用于将所述高速缓存条目插入所述高速缓冲存储器中的入口步骤,在所述选择步骤的结果是所述高速缓存条目要被插入的情况下,对于所述数据包,所述地址信息和相关联的输出链接信息。