SWITCHING DEVICE
    1.
    发明申请
    SWITCHING DEVICE 有权
    切换设备

    公开(公告)号:US20120163375A1

    公开(公告)日:2012-06-28

    申请号:US13416645

    申请日:2012-03-09

    IPC分类号: H04L12/50

    摘要: A switching device in a network system for transferring data includes one or more source line cards, one or more destination line cards and a switching fabric coupled to the source line cards and the destination line cards to enable data communication between any source line card and destination line card. Each source line card includes a request generator to generate a request signal to be transmitted in order to obtain an authorization to transmit data. Each destination line card includes a grant generator to generate and send back a grant signal to the source line card in response to the request signal received at the destination line card to authorize the source line card to transmit a data cell to the destination line card.

    摘要翻译: 用于传送数据的网络系统中的交换设备包括一个或多个源线卡,一个或多个目的线卡和耦合到源线卡和目的线卡的交换结构,以使得能够在任何源线卡和目的地之间进行数据通信 线卡 每个源线卡包括一个请求发生器,用于产生要发送的请求信号,以获得发送数据的授权。 每个目的地线路卡包括授权发生器,以响应于在目的地线路卡处接收到的请求信号来生成并发送授权信号到源线路卡,以授权源线路卡将数据信元发送到目的地线路卡。

    Consistent packet switched memory bus for shared memory multiprocessors
    4.
    发明授权
    Consistent packet switched memory bus for shared memory multiprocessors 失效
    用于共享存储器多处理器的一致的分组交换存储器总线

    公开(公告)号:US5924119A

    公开(公告)日:1999-07-13

    申请号:US188660

    申请日:1994-01-27

    CPC分类号: G06F13/364 G06F12/0831

    摘要: A shared memory multiprocessor having a packet switched bus for transferring data between a plurality processors, I/O devices, cache memories and main memory employs a bus protocol which permits multiple copies of data to be updated under the control of different processors while still ensuring that all processors and all I/O devices have access to consistent values for all data at all times.

    摘要翻译: 具有用于在多个处理器,I / O设备,高速缓冲存储器和主存储器之间传送数据的分组交换总线的共享存储器多处理器采用允许在不同处理器的控制下更新数据的多个副本的总线协议,同时仍然确保 所有处理器和所有I / O设备始终可以访问所有数据的一致值。

    Consistency protocols for shared memory multiprocessors
    5.
    发明授权
    Consistency protocols for shared memory multiprocessors 失效
    共享内存多处理器的一致性协议

    公开(公告)号:US5265235A

    公开(公告)日:1993-11-23

    申请号:US23854

    申请日:1993-02-26

    CPC分类号: G06F12/0833

    摘要: A shared memory multiprocessor having a packet switched bus, together with write back caches for connecting individual processor to that bus, employs a consistency protocol that permits the caches to store multiple copies of read/write data at identical physical addresses for use as needed by the respective processors. The protocol causes the hardware to automatically and transparently maintain the consistency of this data. To that end, the caches detect when a datum becomes shared by monitoring the traffic on the bus, thereby enabling them to broadcast an updating write on the bus whenever their respective processors issue a write to a shared address. If desired, this protocol may be extended to include an advisory invalidate for reducing the amount of address sharing that occurs, thereby enhancing the efficiency of the protocol. The protocol maintains a consistent view of memory for the processors, while permitting I/O devices to have direct access to the memory system.

    摘要翻译: 具有分组交换总线的共享存储器多处理器以及用于将单个处理器连接到该总线的回写高速缓存使用一致性协议,其允许高速缓存在相同的物理地址处存储读/写数据的多个副本,以供根据需要使用 各自的处理器。 该协议使硬件自动和透明地保持这些数据的一致性。 为此,高速缓存通过监视总线上的流量来检测数据何时被共享,从而使得它们能够在总线上广播更新写入,只要它们各自的处理器对共享地址进行写入。 如果需要,该协议可以被扩展以包括用于减少发生的地址共享的量的咨询无效,从而提高协议的效率。 该协议保持对处理器的一致的存储视图,同时允许I / O设备直接访问存储系统。

    Processing packets by a network device
    6.
    发明授权
    Processing packets by a network device 有权
    通过网络设备处理数据包

    公开(公告)号:US08804739B2

    公开(公告)日:2014-08-12

    申请号:US13460697

    申请日:2012-04-30

    IPC分类号: H04L12/28 H04L12/56 H04L29/06

    摘要: A method and apparatus for performing a lookup in a switching device of a packet switched network where the lookup includes a plurality of distinct operations each of which returns a result that includes a pointer to a next operation in a sequence of operations for the lookup. The method includes determining a first lookup operation to be executed, executing the first lookup operation including returning a result and determining if the result includes a pointer to another lookup operation in the sequence of operations. If the result includes a pointer to another lookup operation, the lookup operation indicated by the result is executed. Else, the lookup is terminated.

    摘要翻译: 一种用于在分组交换网络的交换设备中执行查找的方法和装置,其中所述查找包括多个不同的操作,每个操作返回包括用于所述查找的操作序列中的下一个操作的指针的结果。 该方法包括确定要执行的第一查找操作,执行第一查找操作,包括返回结果并确定结果是否包含指向操作序列中的另一查找操作的指针。 如果结果包含指向另一个查找操作的指针,则执行结果指示的查找操作。 否则,查找终止。

    Filtering and route lookup in a switching device
    10.
    发明授权
    Filtering and route lookup in a switching device 有权
    在交换设备中过滤和路由查找

    公开(公告)号:US06798777B1

    公开(公告)日:2004-09-28

    申请号:US09550413

    申请日:2000-04-17

    IPC分类号: G06F1200

    摘要: A method and apparatus for performing a lookup in a switching device of a packet switched network where the lookup includes a plurality of distinct operations each of which returns a result that includes a pointer to a next operation in a sequence of operations for the lookup. The method includes determining a first lookup operation to be executed, executing the first lookup operation including returning a result and determining if the result includes a pointer to another lookup operation in the sequence of operations. If the result includes a pointer to another lookup operation, the lookup operation indicated by the result is executed. Else, the lookup is terminated.

    摘要翻译: 一种用于在分组交换网络的交换设备中执行查找的方法和装置,其中所述查找包括多个不同的操作,每个操作返回包括用于所述查找的操作序列中的下一个操作的指针的结果。 该方法包括确定要执行的第一查找操作,执行第一查找操作,包括返回结果并确定结果是否包含指向操作序列中的另一查找操作的指针。 如果结果包含指向另一个查找操作的指针,则执行结果指示的查找操作。 否则,查找终止。