Method and apparatus for segmenting network traffic variable length frames
    41.
    发明授权
    Method and apparatus for segmenting network traffic variable length frames 失效
    分段网络流量可变长度帧的方法和装置

    公开(公告)号:US06714562B1

    公开(公告)日:2004-03-30

    申请号:US09522369

    申请日:2000-03-10

    IPC分类号: H04J324

    摘要: Method and apparatus for segmenting variable length frames into fixed length cells in a network equipment. The method allows preparing information to build the cells resulting in the segmenting of a succession of frames directed to the same destination in said network equipment. The cell may be packed with more than one frame. The cell information comprises the address where to read the frame data in a first storage unit, the cell header itself which indicates if the cell includes data from one packet or for more packets, a pointer per each of said more packets, designating the place of the end of data of the previous packet in the cell and a cell type field indicating one of the following types: a start of a new frame type, a continuation of frame type, a end of current frame type and a start and a end of a new frame type. The segmenting apparatus comprises a finite state machine using an Add/substract unit to compute the cell information and write said cell information in a second storage unit.

    摘要翻译: 用于将可变长度帧分割成网络设备中的固定长度单元的方法和装置。 该方法允许准备信息以构建小区,从而导致在所述网络设备中定向到同一目的地的一系列帧的分段。 电池可以包装多于一个框架。 小区信息包括在第一存储单元中读取帧数据的地址,指示小区是否包括来自一个分组的数据或更多分组的小区头自身,每个更多分组的指针,指定每个分组的位置 小区中的先前分组的数据的结束以及指示以下类型之一的小区类型字段:新帧类型的开始,帧类型的继续,当前帧类型的结束以及开始和结束 一种新的帧类型。 分割装置包括使用加/减单元计算单元信息并在第二存储单元中写入所述单元信息的有限状态机。

    Methods, systems and computer program products for suppressing multiple destination traffic in a computer network
    43.
    发明授权
    Methods, systems and computer program products for suppressing multiple destination traffic in a computer network 失效
    用于抑制计算机网络中的多个目标流量的方法,系统和计算机程序产品

    公开(公告)号:US06587471B1

    公开(公告)日:2003-07-01

    申请号:US09707361

    申请日:2000-11-07

    IPC分类号: H04B7212

    摘要: Methods, systems and computer program products are provided which control message storms in a network by classifying multiple destination messages into a plurality of broadcast message classes based upon characteristics of the broadcast messages. The number of multiple destination messages for each class of broadcast messages of the plurality of classes of broadcast messages are then counted so as to provide a plurality of broadcast message class counts. Multiple destination messages of a class of broadcast messages are then selectively transmitted based upon the broadcast message class count for the class of broadcast messages.

    摘要翻译: 提供方法,系统和计算机程序产品,其通过基于广播消息的特征将多个目的地消息分类为多个广播消息类别来控制网络中的消息风暴。 然后对多个广播消息类的每个类别的广播消息的多个目的地消息的数量进行计数,以便提供多个广播消息类别计数。 然后基于广播消息类的广播消息类别计数来选择性地发送一类广播消息的多个目的地消息。

    Network processor probing and port mirroring
    46.
    发明授权
    Network processor probing and port mirroring 失效
    网络处理器探测和端口镜像

    公开(公告)号:US06449576B1

    公开(公告)日:2002-09-10

    申请号:US09538247

    申请日:2000-03-29

    IPC分类号: G01R2728

    CPC分类号: H04L43/50 G01R31/31926

    摘要: A method and system for systematically accessing and monitoring operating parameter signals within an IC device. A probe configuration logic selects a subset of signals from among a set of available signals within a physical or logical subdivision of the IC device. Signal access logic selectively provides physical or logical access from the selected subset of signals within the physical or logical subdivision of the IC device to a probe sensor, such that IC device operations may be flexibly and comprehensively monitored. A local mode selector provides remote access to the selected subset of signals at an input/output (I/O) data interface. Data packaging logic in communication with the probe sensor permits port mirroring of the I/O data interface.

    摘要翻译: 一种用于系统地访问和监视IC设备内的操作参数信号的方法和系统。 探针配置逻辑从IC器件的物理或逻辑细分内的一组可用信号中选择一个信号子集。 信号访问逻辑选择性地从IC器件的物理或逻辑细分中的选定的信号子集提供到探针传感器的物理或逻辑访问,使得可以灵活和全面地监视IC器件操作。 本地模式选择器可在输入/输出(I / O)数据接口上远程访问选定的信号子集。 与探头传感器通信的数据封装逻辑允许端口镜像I / O数据接口。

    Apparatus and method for setting A/C bits in token ring frames for switches
    47.
    发明授权
    Apparatus and method for setting A/C bits in token ring frames for switches 失效
    用于在交换机的令牌环形帧中设置A / C位的装置和方法

    公开(公告)号:US06266336B1

    公开(公告)日:2001-07-24

    申请号:US09025715

    申请日:1998-02-18

    IPC分类号: H04L1246

    摘要: An apparatus for use in token ring switches for selectively setting the A/C bits in token ring frames. The apparatus includes a database with addresses of stations on the ring connected to the port. The apparatus compares the destination addresses of frames received from the ring with the addresses in the database and sets the A/C bits only if a match does not occur. By setting the A/C bits selectively, by the port, errors that would otherwise occur, either by setting the A/C bits on all frames or not setting the bits on all frames, are obviated.

    摘要翻译: 用于在令牌环形帧中有选择地设置A / C位的令牌环形交换机中使用的装置。 该设备包括一个数据库,该数据库具有连接到端口的环上的站的地址。 该设备将从环接收的帧的目的地地址与数据库中的地址进行比较,并且仅在不发生匹配时才设置A / C位。 通过端口选择性地设置A / C位,通过设置所有帧上的A / C位或不设置所有帧上的位,否则将会发生错误。

    Implementing pointer and stake model for frame alteration code in a network processor
    49.
    发明授权
    Implementing pointer and stake model for frame alteration code in a network processor 失效
    在网络处理器中实现帧更改代码的指针和投注模型

    公开(公告)号:US08170024B2

    公开(公告)日:2012-05-01

    申请号:US11934810

    申请日:2007-11-05

    IPC分类号: H04L12/56

    CPC分类号: H04L49/901 H04L49/90

    摘要: A method, apparatus and computer program product are provided for implementing a pointer and stake model for frame alteration code in a network processor. A current pointer and a stake are provided for a packet selected for transmit. The current pointer is maintained for tracking a current position for frame alteration operations in the packet. The stake is maintained for tracking a start of a current header for frame alteration operations in the packet. The current pointer is used by frame alteration code instructions to specify a sequence of operations relative to the current pointer. The specified frame alteration sequence is compact in terms of code size to operate on data within a small window of bytes. Advance pointer instructions allow the current and stake pointers to be advanced an arbitrary number of bytes into the packet.

    摘要翻译: 提供了一种方法,装置和计算机程序产品,用于在网络处理器中实现用于帧改变码的指针和拍摄模型。 为选择用于发送的分组提供当前指针和分支。 保持当前指针用于跟踪分组中帧更改操作的当前位置。 保留该批次用于跟踪该分组中的帧更改操作的当前报头的开始。 当前指针由帧改变代码指令使用以指定相对于当前指针的操作序列。 指定的帧改变序列在代码大小方面是紧凑的,以便在小的字节窗口内对数据进行操作。 高级指针指令允许当前和指针指针以任意数量的字节进入数据包。