利索-全球专利检索

  1. 登录
  2. 注册

搜索结果

5 条记录 (耗时 0.017 秒)

    Measuring packet transmission delays
    4.
    发明授权
    Measuring packet transmission delays 失效
    测量数据包传输延迟

    公开(公告)号：US5428616A

    公开(公告)日：1995-06-27

    申请号：US981940

    申请日：1992-11-23

    申请人： Anthony V. Field ,  Jason B. Brent ,  Edward Hatala ,  John Timms

    发明人： Anthony V. Field ,  Jason B. Brent ,  Edward Hatala ,  John Timms

    IPC分类号： H04L12/70 ,  H04L12/931 ,  H04L12/935 ,  H04Q11/04 ,  H04J3/26 ,  H04L12/56

    CPC分类号： H04L49/30 ,  H04L49/206 ,  H04Q11/0478 ,  H04L2012/5649

    摘要： A packet transmission system comprising a network of one or more nodes (1) each comprising a number of inputs connected via packet switching means to a number of outputs each of which has storage means (11) associated with it in which to store a queue of packets to be outputted; characterized in that each node (1) is provided with timer means (14) to measure the time each packet spends in a queue of said storage means (11); and stamping means (12) to add to a time stamp field (TS) of each packet before it is outputted from the node, the time the packet has spent in a queue as measured by the timer means (14).

    摘要翻译： 一种分组传输系统，包括一个或多个节点（1）的网络，每个节点（1）包括通过分组交换装置连接到多个输出的多个输入，每个输出具有与其相关联的存储装置（11），其中存储有 要输出的数据包; 其特征在于，每个节点（1）设置有定时器装置（14），用于测量每个分组在所述存储装置（11）的队列中花费的时间; 以及冲压装置（12），其在从节点输出之前添加到每个分组的时间戳字段（TS），分组在由定时装置（14）测量的队列中花费的时间。

    Method and apparatus for controlling congestion in packet switching networks
    5.
    发明授权
    Method and apparatus for controlling congestion in packet switching networks 失效
    用于控制分组交换网络中的拥塞的方法和装置

    公开(公告)号：US5315591A

    公开(公告)日：1994-05-24

    申请号：US981937

    申请日：1992-11-23

    申请人： Jason B. Brent ,  Edward Hatala ,  John Timms

    发明人： Jason B. Brent ,  Edward Hatala ,  John Timms

    IPC分类号： H04L12/54 ,  H04L12/70 ,  H04L12/931 ,  H04L12/935 ,  H04Q11/04 ,  H04L12/56

    CPC分类号： H04Q11/0478 ,  H04L12/5602 ,  H04L49/206 ,  H04L49/505 ,  H04L2012/5616 ,  H04L2012/5635 ,  H04L2012/5636 ,  H04L2012/5651 ,  H04L2012/5652 ,  H04L49/30 ,  H04L49/501

    摘要： A system in which core information, for example in the form of a core block or blocks (C), is transmitted in a core packet (PC), and at least some enhancement information, for example, in the form of enhancement blocks (E), is transmitted in an enhancement packet (PE) which is separate from the core packet (PC) and is discardable to relieve congestion. Preferably, the core and enhancement packets have headers (H) which include a discard eligible marker (DE) to indicate whether or not the associated packet can be discarded. The enhancement blocks (E) may be distributed between the core packet and enhancement packet in accordance with congestion conditions, or the enhancement blocks may be incorporated only in the enhancement packet, and the actual number of enhancement blocks included are varied depending on congestion conditions. Preferably, the packets are transmitted in frame relay format and congestion forward (CF) and congestion backwards (CB) markers are used to feed back information of congestion conditions within a network to the packet assembler (7) forming the core and enhancement packets.

    摘要翻译： 例如以核心数据包（PC）的形式发送核心信息块（C）的核心信息的核心信息，以及至少一些增强信息，例如增强块（E ）在与核心分组（PC）分离的增强分组（PE）中发送，并且可以放弃以减轻拥塞。 优选地，核心和增强分组具有包括丢弃符合标记（DE）的报头（H），以指示是否可以丢弃相关联的分组。 增强块（E）可以根据拥塞状况分布在核心分组和增强分组之间，或者增强块可以仅被并入增强分组中，并且所包含的增强块的实际数量根据拥塞状况而变化。 优选地，以帧中继格式发送分组，并且使用拥塞向前（CF）和拥塞向后（CB）标记来将网络内的拥塞状况的信息反馈到形成核心和增强分组的分组组装器（7）。