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。

    Method and system for managing multicast traffic
    4.
    发明授权
    Method and system for managing multicast traffic 失效
    管理组播流量的方法和系统

    公开(公告)号:US06738376B1

    公开(公告)日:2004-05-18

    申请号:US09543676

    申请日:2000-04-07

    IPC分类号: H04L1228

    摘要: A system for controlling multicast traffic in a multiprocessing system is disclosed. The multiprocessing system includes a general-purpose processor, a plurality of network processors and a switch fabric. The system comprises a multicast identifier (MID) manager to manage a distributed database of MIDs. The distributed database includes at least one compound MID. The at least one compound MID structure further comprises a plurality of MIDs representing at least two multicast groups. The system also includes a MID processor which traverses the at least one compound MID and resolves it into its associated simple MIDs. Accordingly, the present invention provides for a system and method for efficiently controlling multicast transmissions when different types of multicast groups are to receive the multicast transmissions. In this system and method a new type of multicast identifier (MID) is provided, a compound MID. The compound MID is a single MID but references multiple MIDs. The system includes a MID manager which manages a distributed database of MIDS. Finally, the system and method includes at least one MID processor which accesses the appropriate compound MIDs and resolves them into the simple member MIDs to allow a router to provide the information to an appropriate bridge.

    摘要翻译: 公开了一种用于在多处理系统中控制多播流量的系统。 多处理系统包括通用处理器,多个网络处理器和交换结构。 该系统包括用于管理MID的分布式数据库的多播标识符(MID)管理器。 分布式数据库包括至少一个复合MID。 所述至少一个复合MID结构还包括表示至少两个多播组的多个MID。 该系统还包括一个MID处理器,它遍历至少一个复合MID并将其解析成其相关联的简单MID。 因此,本发明提供了一种用于当不同类型的多播组要接收多播传输时有效地控制多播传输的系统和方法。 在该系统和方法中,提供了一种新型的组播标识符(MID),即复合MID。 复合MID是单个MID,但是引用了多个MID。 该系统包括管理MIDS的分布式数据库的MID管理器。 最后,该系统和方法包括至少一个MID处理器,其访问适当的复合MID并将其解析成简单成员MID,以允许路由器将信息提供给适当的桥。

    Method and system for downloading software managed trees in a network processing system
    5.
    发明授权
    Method and system for downloading software managed trees in a network processing system 失效
    在网络处理系统中下载软件管理树的方法和系统

    公开(公告)号:US06799207B1

    公开(公告)日:2004-09-28

    申请号:US09546343

    申请日:2000-04-10

    IPC分类号: G06F15173

    摘要: A method and system for downloading software managed trees (SMTs) in a network processing system provides dynamic update of frame classifiers while maintaining proper network protocol processing. The network processing system includes a general purpose processor acting as control point processor and a plurality of network processors. The new SMT is built by an application on the control point processor and downloaded to one or more of the network processors. The new SMT is placed in a separate memory location accessible to the network processors, rather then overwriting the existing SMT. The active tree pointers are then changed to transfer control to the new SMT.

    摘要翻译: 在网络处理系统中下载软件管理树(SMT)的方法和系统提供帧分类器的动态更新,同时保持适当的网络协议处理。 网络处理系统包括充当控制点处理器的通用处理器和多个网络处理器。 新的SMT由控制点处理器上的应用程序构建并下载到一个或多个网络处理器。 新的SMT放置在网络处理器可访问的单独内存位置,而不是覆盖现有的SMT。 然后更改活动树指针,将控件转移到新的SMT。

    System and method and computer program for filtering using tree structure
    6.
    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。

    Network processor/software control architecture
    7.
    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。