Method for defining and controlling the overall behavior of a network processor device
    2.
    发明授权
    Method for defining and controlling the overall behavior of a network processor device 有权
    用于定义和控制网络处理器设备的整体行为的方法

    公开(公告)号:US06763375B1

    公开(公告)日:2004-07-13

    申请号:US09547362

    申请日:2000-04-11

    IPC分类号: G06F1300

    摘要: A system and method for controlling overall behavior of a network processor device implemented in a network processing environment servicing a communications network. The method includes steps of receiving a guided control frame including one or more control functions for configuring various functional devices within the network processor with device control parameter data; a step of forwarding one or more control functions from a received control frame to a functional device within the network processor to be configured; and, executing the control functions as specified in the control frame. A novel control frame data structure and communications infrastructure is implemented whereby any network processor device operating in a distributed network processing environment may be controlled in accordance with executed control functions and device control parameter data.

    摘要翻译: 一种用于控制在为通信网络服务的网络处理环境中实现的网络处理器设备的整体行为的系统和方法。 该方法包括以下步骤:接收包括用于使用设备控制参数数据配置网络处理器内的各种功能设备的一个或多个控制功能的引导控制帧; 将一个或多个控制功能从接收到的控制帧转发到要配置的网络处理器内的功能设备的步骤; 并且执行控制帧中指定的控制功能。 实现新颖的控制帧数据结构和通信基础设施,从而可以根据执行的控制功能和设备控制参数数据来控制在分布式网络处理环境中操作的任何网络处理器设备。

    Network processor/software control architecture
    3.
    发明授权
    Network processor/software control architecture 失效
    网络处理器/软件控制架构

    公开(公告)号:US06898179B1

    公开(公告)日:2005-05-24

    申请号:US09544896

    申请日:2000-04-07

    CPC分类号: G06F15/17

    摘要: The transport protocol for communicating between general purpose processors acting as contact points and network processors in a packet processing environment such as Ethernet is provided. In such an environment, there is at least one single control point processor (CP) and a plurality of network processors (NP), sometimes referred to as blades. A typical system could contain two to sixteen network processors, and each network processor connects to a plurality of devices which communicate with each other over a network transport, such as Ethernet. The CP typically controls the functionality and the functioning of the network processors to function in a way that connects one end user with another, whether or not the end user is on the same network processor or a different network processor. There are three types of communication provided; first, there is communication generally referred to as control services and normally there will be only one pico processor which operates as a GCH (guided cell handler) and only one that operates as a guided tree handler (GTH). A path is provided for the controls to the GCH and the GTH commands, and a separate path is provided for the data frames between the GDH's (general data handler) and the CP.

    摘要翻译: 提供了用于在诸如以太网的分组处理环境中用作接触点的通用处理器和网络处理器之间进行通信的传输协议。 在这样的环境中,存在至少一个单个控制点处理器(CP)和多个网络处理器(NP),有时称为刀片。 典型的系统可以包含两到十六个网络处理器,并且每个网络处理器连接到通过诸如以太网的网络传输彼此通信的多个设备。 CP通常控制网络处理器的功能和功能,以使终端用户与另一终端用户相连的方式起作用,无论终端用户是否在同一个网络处理器或不同的网络处理器上。 提供三种通讯方式; 首先,通常被称为控制服务的通信,并且通常将只有一个微微处理器作为GCH(引导的单元处理器)操作,并且只有一个作为引导树处理器(GTH)操作。 为GCH和GTH命令的控制提供路径,并为GDH(通用数据处理程序)和CP之间的数据帧提供单独的路径。

    System and method and computer program for filtering using tree structure
    4.
    发明授权
    System and method and computer program for filtering using tree structure 失效
    使用树结构进行过滤的系统和方法以及计算机程序

    公开(公告)号:US06298340B1

    公开(公告)日:2001-10-02

    申请号:US09312148

    申请日:1999-05-14

    IPC分类号: G06F1730

    摘要: A classification system includes a software managed tree testing bits from a key which labels an item. The bits are chosen by application of the Choice Bit Algorithm to the Rules in a Database of Rules. A controller including logic parses an unknown Key for bits to be tested in the decision nodes of a binary tree. Tests dictated by the tree are conducted in a predetermined way until all but one Rule from the database or all but a few Rules from the database are eliminated from consideration, whereupon the Key is fully tested by the one remaining Rule or in a lattice constructed of the remaining plurality of Rules, to determine an action to enforce on the item. Certain compare tests are used in the binary tree for the case that otherwise identical or similar rules are applied to integer ranges of key values which do not fall upon power of 2 boundaries. Furthermore, some very frequently occurring rules in such final tests might be designated as secondary rules, the remaining rules designated as primary rules, the entire decision tree recalculated using only primary rules, and the primary rules then connected to secondary rules only when logically necessary by means of a system of pointers making use of relative priorities of rules.

    摘要翻译: 分类系统包括从标签项目的键的软件管理树测试位。 通过将选择位算法应用于规则数据库中的规则来选择位。 包含逻辑的控制器在二叉树的决策节点中解析要测试的位的未知密钥。 由树进行的测试以预定的方式进行,直到从数据库中除了一个规则之外的所有除了数据库中的所有规则或从数据库中除了少数几个规则之外的所有测试都被消除,由此Key被完整的一个规则或由 剩余的多个规则,以确定对该项目执行的操作。 在二叉树中使用某些比较测试,否则相同或相似的规则应用于不落在2边界的幂的关键值的整数范围。 此外,这些最终测试中的一些非常频繁出现的规则可能被指定为次要规则,剩余的规则被指定为主要规则,仅使用主要规则重新计算的整个决策树,然后仅在逻辑上必要时连接到次级规则的主要规则 使用指针的相对优先级的指针系统的手段。

    Method and apparatus for processing frame classification information between network processors
    9.
    发明授权
    Method and apparatus for processing frame classification information between network processors 失效
    用于处理网络处理器之间帧分类信息的方法和装置

    公开(公告)号:US07106730B1

    公开(公告)日:2006-09-12

    申请号:US09546833

    申请日:2000-04-11

    IPC分类号: H04L12/56

    CPC分类号: H04L49/30

    摘要: A network device including an ingress processor and egress processor which receives frames of data over the network on an input port, and transfers it to an appropriate output port. The received frame is processed by an ingress processor which prepares an intra-switch frame for delivery to an egress processor serving a relevant output port of the switch. The intra-switch frame includes a frame header having parameters which have been determined by the ingress processor, as well as data indicating an address for the egress processor for beginning processing of the frame. By identifying to the egress processor processing which has already taken place, the egress processor is relieved of any redundant processing of the frame. The egress processor provides a hardware frame classifier which decodes the information contained in the intra-frame header to derive parameters which have been previously computed as well as a starting address for the egress processor. By reducing the amount of redundant processing of the egress processor, total device throughput delay is reduced.

    摘要翻译: 一种网络设备,包括入口处理器和出口处理器,其在输入端口上通过网络接收数据帧,并将其传送到适当的输出端口。 接收到的帧由入口处理器处理,入口处理器准备一个内部交换帧,用于传送到服务于交换机的相关输出端口的出口处理器。 帧内切换帧包括具有由入口处理器确定的参数的帧报头,以及指示用于开始处理该帧的出口处理器的地址的数据。 通过识别已经发生的出口处理器处理,出口处理器免除了帧的任何冗余处理。 出口处理器提供硬件帧分类器,其对包含在帧内报头中的信息进行解码以导出先前已经计算的参数以及出口处理器的起始地址。 通过减少出口处理器的冗余处理量,减少了总设备吞吐量延迟。

    Method and system for frame and protocol classification
    10.
    发明授权
    Method and system for frame and protocol classification 失效
    框架和协议分类的方法和系统

    公开(公告)号:US07440417B2

    公开(公告)日:2008-10-21

    申请号:US10870730

    申请日:2004-06-17

    IPC分类号: H04L12/28

    CPC分类号: H04L29/06 H04L69/18 H04L69/22

    摘要: A system and method of protocol and frame classification in a system for data processing is disclosed, including, analyzing a portion of the, packet or frame according to predetermined tests, and storing characteristics of the packet for use in subsequent processing of the frame. The characteristics are preferably obtained with hardware, which does so quickly and in a uniform time period. The stored characteristics of the packet are then used by the network processing complexes in further processing of the frame. The processor is preconditioned with a starting instruction address or cede entry point and the location of the beginning of the layer 3 header as well as flags for the type of frame.

    摘要翻译: 公开了一种用于数据处理的系统中的协议和帧分类的系统和方法,包括:根据预定的测试分析一部分数据包或帧,以及存储该数据包的特性以用于帧的后续处理。 这些特征优选地通过硬件获得,硬件在快速且均匀的时间周期内这样做。 然后,分组的存储特性由网络处理复合体用于帧的进一步处理。 处理器使用开始指令地址或者入门点进行预处理,并且第3层头的开始位置以及帧类型的标志。