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    • 3. 发明申请
    • Host Ethernet Adapter for Handling Both Endpoint and Network Node Communications
    • 用于处理端点和网络节点通信的主机以太网适配器
    • US20120192190A1
    • 2012-07-26
    • US13011663
    • 2011-01-21
    • Claude BassoJean L. CalvignacChih-jen ChangPhilippe DamonNatarajan VaidhyanathanFabrice J. VerplankenColin B. Verrilli
    • Claude BassoJean L. CalvignacChih-jen ChangPhilippe DamonNatarajan VaidhyanathanFabrice J. VerplankenColin B. Verrilli
    • G06F9/46
    • G06F15/1735
    • A host Ethernet adapter (HEA) and method of managing network communications is provided. The HEA includes a host interface configured for communication with a multi-core processor over a processor bus. The host interface comprises a receive processing element including a receive processor, a receive buffer and a scheduler for dispatching packets from the receive buffer to the receive processor; a send processing element including a send processor and a send buffer; and a completion queue scheduler (CQS) for dispatching completion queue elements (CQE) from the head of the completion queue (CQ) to threads of the multi-core processor in a network node mode. The method comprises operatively coupling an Ethernet adapter to a multi-core processor system via a processor bus, selectively assigning a first plurality of packets to a first queue pair for servicing in an endpoint mode, running a device driver on the multi-core processing system, the device driver controlling the servicing of the first queue pair by dispatching the first plurality of packets to only one processor core of the multi-core processor system, selectively assigning a second plurality of packets to a second queue pair for servicing in a network node mode; and the Ethernet adapter controlling the servicing of the second queue pair by dispatching the second plurality of packets to multiple processor threads.
    • 提供主机以太网适配器(HEA)和管理网络通信的方法。 HEA包括被配置为通过处理器总线与多核处理器进行通信的主机接口。 所述主机接口包括接收处理元件,所述接收处理元件包括接收处理器,接收缓冲器和用于从所述接收缓冲器向所述接收处理器分发分组的调度器; 包括发送处理器和发送缓冲器的发送处理元件; 以及用于从完成队列(CQ)的头部将网络节点模式中的多核处理器的线程调度完成队列元素(CQE)的完成队列调度器(CQS)。 该方法包括经由处理器总线可操作地将以太网适配器耦合到多核处理器系统,选择性地将第一多个分组分配到第一队列对以在端点模式下进行服务,在多核处理系统上运行设备驱动程序 所述设备驱动程序通过将所述第一多个分组分派到所述多核处理器系统的一个处理器核心来控制所述第一队列对的服务,选择性地将第二多个分组分配给第二队列对以在网络节点中进行服务 模式; 以及所述以太网适配器通过将所述第二多个分组分派到多个处理器线程来控制所述第二队列对的服务。
    • 6. 发明授权
    • Priority resolution for access control list policies in a networking device
    • 网络设备中访问控制列表策略的优先级分辨率
    • US09571502B2
    • 2017-02-14
    • US13616256
    • 2012-09-14
    • Claude BassoNatarajan VaidhyanathanColin B. Verrilli
    • Claude BassoNatarajan VaidhyanathanColin B. Verrilli
    • G06F15/173H04L29/06H04L12/00
    • H04L63/101H04L12/00H04L29/06823
    • Access control lists (ACLs) permit network administrators to manage network traffic flowing through a networking element to optimize network security, performance, quality of service (QoS), and the like. If a networking element has multiple ACLs directed towards different types of network optimization, each ACL may return a separate action set that identifies one or more actions the networking element should perform based on a received frame. In some cases, these action sets may conflict. To resolve the conflicts, a networking element may include resolution logic that selects one of the conflicting actions based on a predefined precedence value assigned to each action in an action set. By comparing the different precedence values, the resolution logic generates a new action set based on the actions with the highest precedence value.
    • 访问控制列表(ACL)允许网络管理员管理流经网络元件的网络流量,以优化网络安全性,性能,服务质量(QoS)等。 如果网络元件具有针对不同类型的网络优化的多个ACL,则每个ACL可以返回单独的动作集合,其识别基于接收到的帧的网络元件应该执行的一个或多个动作。 在某些情况下,这些操作集可能会发生冲突。 为了解决冲突,网络元件可以包括分辨率逻辑,其基于分配给动作集中的每个动作的预定义优先级值来选择冲突动作之一。 通过比较不同的优先级值,分辨率逻辑基于具有最高优先级值的动作生成新的动作集。
    • 8. 发明申请
    • PRIORITY RESOLUTION FOR ACCESS CONTROL LIST POLICIES IN A NETWORKING DEVICE
    • 网络设备访问控制列表策略的优先解决方案
    • US20140082168A1
    • 2014-03-20
    • US13616256
    • 2012-09-14
    • Claude BassoNatarajan VaidhyanathanColin B. Verrilli
    • Claude BassoNatarajan VaidhyanathanColin B. Verrilli
    • G06F15/173
    • H04L63/101H04L12/00H04L29/06823
    • Access control lists (ACLs) permit network administrators to manage network traffic flowing through a networking element to optimize network security, performance, quality of service (QoS), and the like. If a networking element has multiple ACLs directed towards different types of network optimization, each ACL may return a separate action set that identifies one or more actions the networking element should perform based on a received frame. In some cases, these action sets may conflict. To resolve the conflicts, a networking element may include resolution logic that selects one of the conflicting actions based on a predefined precedence value assigned to each action in an action set. By comparing the different precedence values, the resolution logic generates a new action set based on the actions with the highest precedence value.
    • 访问控制列表(ACL)允许网络管理员管理流经网络元件的网络流量,以优化网络安全性,性能,服务质量(QoS)等。 如果网络元件具有针对不同类型的网络优化的多个ACL,则每个ACL可以返回单独的动作集合,其识别基于接收到的帧的网络元件应该执行的一个或多个动作。 在某些情况下,这些操作集可能会发生冲突。 为了解决冲突,网络元件可以包括分辨率逻辑,其基于分配给动作集中的每个动作的预定义优先级值来选择冲突动作之一。 通过比较不同的优先级值,分辨率逻辑基于具有最高优先级值的动作生成新的动作集。
    • 10. 发明申请
    • USING SPECIAL-CASE HARDWARE UNITS FOR FACILITATING ACCESS CONTROL LISTS ON A NETWORKING ELEMENT
    • 使用特殊情况硬件单元,实现对网络元素的访问控制列表
    • US20140082176A1
    • 2014-03-20
    • US13616201
    • 2012-09-14
    • Claude BassoNatarajan VaidhyanathanColin B. Verrilli
    • Claude BassoNatarajan VaidhyanathanColin B. Verrilli
    • G06F15/173
    • H04L45/7457G06F15/167G06F17/30982H04L63/101
    • Access control lists (ACLs) include one or more rules that each define a condition and one or more actions to be performed if the condition is satisfied. In one embodiment, the conditions are stored on a ternary content-addressable memory (TCAM), which receives a portion of network traffic, such as a frame header, and compares different portions of the header to entries in the TCAM. If the frame header satisfies the condition, the TCAM reports the match to other elements in the ACL. For certain conditions, the TCAM may divide the condition into a plurality of sub-conditions which are each stored in a row of the TCAM. To efficiently use the limited space in TCAM, the networking element may include one or more comparator units which check for special-case conditions. The comparator units may be used in lieu of the TCAM to determine whether the condition is satisfied.
    • 访问控制列表(ACL)包括一个或多个规则,每个规则定义条件和满足条件时要执行的一个或多个操作。 在一个实施例中,条件存储在三元可内容寻址存储器(TCAM)上,该内容可寻址存储器(TCAM)接收网络业务的一部分,例如帧头,并且将头部的不同部分与TCAM中的条目进行比较。 如果帧头满足条件,则TCAM报告与ACL中其他元素的匹配。 对于某些条件,TCAM可以将条件划分为多个子条件,这些子条件各自存储在一行TCAM中。 为了有效地使用TCAM中的有限空间,网络元件可以包括一个或多个比较器单元,用于检查特殊情况。 可以使用比较器单元代替TCAM来确定条件是否满足。