Multi-port network device using lookup cost backpressure
    1.
    发明授权
    Multi-port network device using lookup cost backpressure 有权
    使用查找成本背压的多端口网络设备

    公开(公告)号:US08027256B1

    公开(公告)日:2011-09-27

    申请号:US11142998

    申请日:2005-06-02

    IPC分类号: G01R31/08 H04J1/16

    摘要: In one embodiment of a network device, multiple packet sources contend for access to a packet processing pipeline. The packet processing pipeline tracks the usage of lookup resources by each of the multiple packet sources. When a packet source is detected to be using more than an acceptable allocation of the lookup resources, access to the packet processing pipeline for that source is limited or curtailed to bring that source back within an acceptable allocation of resources. This backpressure mechanism can be used to control sources that, although within a bandwidth limit, are submitting a packet type mix that is consuming unfair percentages of lookup resources in an oversubscribed system. Other embodiments are described and claimed.

    摘要翻译: 在网络设备的一个实施例中,多个分组源争夺对分组处理流水线的访问。 分组处理流水线通过多个分组源中的每一个跟踪查找资源的使用。 当检测到分组源使用多于可接受的查找资源分配时,限制或限制对该源的分组处理流水线的访问以将该源返回到可接受的资源分配之内。 这种背压机制可以用于控制尽管在带宽限制内,正在提交在超额认购的系统中消耗查找资源的不公平百分比的分组类型组合的源。 描述和要求保护其他实施例。