Hierarchical multi-rate multi-precedence policer
    1.
    发明授权
    Hierarchical multi-rate multi-precedence policer 有权
    分层多速率多优先策略器

    公开(公告)号:US07738382B2

    公开(公告)日:2010-06-15

    申请号:US11019915

    申请日:2004-12-21

    IPC分类号: H04J1/16 H04J3/14 H04L1/00

    摘要: A hierarchical multi-rate multi-precedence policer is disclosed. The policer discards packets based on assigned precedence levels. When traffic exceeds an available service rate, the policer drops packets of lower precedence levels to make room for packets of higher precedence levels. In certain implementations, the policer also guarantees bandwidth to each level, thus preventing complete loss of lower precedence traffic when there is a large amount of higher precedence traffic.

    摘要翻译: 公开了一种分级多速率多优先策略器。 监管者根据分配的优先级丢弃数据包。 当流量超过可用服务速率时,策略者丢弃优先级较低的报文,为优先级较高的报文提供空间。 在某些实现中,策略器还保证每个级别的带宽,从而在存在大量较高优先级流量时防止较低优先级流量的完全丢失。

    Hierarchical multi-rate multi-precedence policer
    2.
    发明申请
    Hierarchical multi-rate multi-precedence policer 有权
    分层多速率多优先策略器

    公开(公告)号:US20060133279A1

    公开(公告)日:2006-06-22

    申请号:US11019915

    申请日:2004-12-21

    IPC分类号: H04J1/16

    摘要: A hierarchical multi-rate multi-precedence policer is disclosed. The policer discards packets based on assigned precedence levels. When traffic exceeds an available service rate, the policer drops packets of lower precedence levels to make room for packets of higher precedence levels. In certain implementations, the policer also guarantees bandwidth to each level, thus preventing complete loss of lower precedence traffic when there is a large amount of higher precedence traffic.

    摘要翻译: 公开了一种分级多速率多优先策略器。 监管者根据分配的优先级丢弃数据包。 当流量超过可用服务速率时,策略者丢弃优先级较低的报文,为优先级较高的报文提供空间。 在某些实现中,策略器还保证每个级别的带宽,从而在存在大量较高优先级流量时防止较低优先级流量的完全丢失。

    System and Method for Managing Access Control Lists
    5.
    发明申请
    System and Method for Managing Access Control Lists 审中-公开
    用于管理访问控制列表的系统和方法

    公开(公告)号:US20090125470A1

    公开(公告)日:2009-05-14

    申请号:US11938060

    申请日:2007-11-09

    IPC分类号: G06F17/00 G06F21/00 G06N5/00

    CPC分类号: H04L63/0263 G06N5/025

    摘要: Systems and methods consistent with the present invention provide better scheme for updating access control list (ACL) rule entries in a ternary content addressable memory (TCAM). In a firewall, ACL rules are scanned for each packet arriving in a router or switch to determine if a match exists between the packet and any of the patterns. Depending on the pattern matched, the corresponding action may be either to accept or to deny the packet. These rules are stored in a TCAM, and new or updated rules may be added to the TCAM. Systems and methods consistent with the present invention determine whether the new or updated rule has a dependency conflict with existing rules in the TCAM. If not, the rule can be inserted anywhere in the TCAM. Accordingly, the TCAM associated with a firewall's ACL can be updated more quickly and efficiently.

    摘要翻译: 与本发明一致的系统和方法为更新三元内容可寻址存储器(TCAM)中的访问控制列表(ACL)规则条目提供了更好的方案。 在防火墙中,对于到达路由器或交换机的每个数据包扫描ACL规则,以确定数据包与任何模式之间是否存在匹配。 根据匹配的模式,相应的动作可能是接受或拒绝数据包。 这些规则存储在TCAM中,新的或更新的规则可以添加到TCAM。 与本发明一致的系统和方法确定新的或更新的规则是否具有与TCAM中现有规则的依赖冲突。 如果没有,该规则可以插入TCAM的任何地方。 因此,可以更快更有效地更新与防火墙ACL相关联的TCAM。

    Customized classification of host bound traffic
    7.
    发明授权
    Customized classification of host bound traffic 有权
    主机绑定流量的定制分类

    公开(公告)号:US08503428B2

    公开(公告)日:2013-08-06

    申请号:US12726687

    申请日:2010-03-18

    IPC分类号: H04L12/28

    摘要: A network device component receives traffic, determines whether the traffic is host bound traffic or non-host bound traffic, and classifies, based on a user-defined classification scheme, the traffic when the traffic is host bound traffic. The network device component also assigns, based on the classification, the classified host bound traffic to a queue associated with network device component for forwarding the classified host bound traffic to a host component of the network device.

    摘要翻译: 网络设备组件接收流量,确定流量是主机绑定流量还是非主机绑定流量,并根据用户定义的分类方案对流量进行主机绑定流量分类。 网络设备组件还基于分类将分类的主机绑定业务分配给与网络设备组件相关联的队列,用于将分类的主机绑定业务转发到网络设备的主机组件。

    Packet forwarding path programming using a high-level description language
    8.
    发明授权
    Packet forwarding path programming using a high-level description language 有权
    使用高级描述语言的数据包转发路径编程

    公开(公告)号:US08806058B1

    公开(公告)日:2014-08-12

    申请号:US13194571

    申请日:2011-07-29

    摘要: In general, this disclosure describes a high-level forwarding path description language (FPDL) for describing internal forwarding paths within a network device. The FPDL enables developers to create a template that describes a section of an internal forwarding path within the forwarding plane of a network device. The FPDL provides syntactical elements for specifying the allocation of forwarding path structures as well as enabling the run-time construction of internal forwarding paths to interconnect the forwarding path structures in a manner specific to packet, packet flow, and/or interface properties, for example. In conjunction with late binding techniques, whereby the control plane of the network device provides arguments to template parameters that drive allocation by the packet forwarding engines of forwarding path structures specified by the FPDL, the techniques provide control plane processes a unified interface with which to manage the operation of the packet forwarding engines.

    摘要翻译: 通常,本公开描述了用于描述网络设备内的内部转发路径的高级转发路径描述语言(FPDL)。 FPDL使开发人员能够创建一个描述网络设备转发平面内部转发路径部分的模板。 FPDL提供用于指定转发路径结构的分配的语法元素,以及启用内部转发路径的运行时构造以特定于分组,分组流和/或接口属性的方式互连转发路径结构,例如 。 结合后期绑定技术,由此网络设备的控制平面为模型参数提供参数,以驱动分组转发引擎对由FPDL指定的转发路径结构的分配,这些技术为控制平面处理提供统一的接口,用于管理 分组转发引擎的操作。

    Intracardiac catheter
    9.
    发明授权
    Intracardiac catheter 失效
    心内导管

    公开(公告)号:US5053008A

    公开(公告)日:1991-10-01

    申请号:US616899

    申请日:1990-11-21

    申请人: Sandeep Bajaj

    发明人: Sandeep Bajaj

    IPC分类号: A61B17/00 A61F2/01

    摘要: A multisheathed catheter (12) includes an umbrella (18) positioned on its exterior sheath (16). In use, the umbrella (18) should be positioned within the pulmonary artery. The umbrella (18) has a meshwork (22) through which blood and plasma pass freely therethrough, but which is capable of catching emboli and other foriegn matter before they travel to the lungs. Detection equipment, including a two-dimensional ultrasound probe (44), differential sensors (54 and 56), and chemical sensors (44), are positioned to detect when an embolus has been caught in the umbrella (18). A conduit (64) transports lysing agents (66) such as TPA or heparin to the trapped embolus. In addition, the umbrella (18) can be closed on a trapped embolus using cords (34) and the embolus can be broken apart using ultrasonic probes (70) or can be removed by suction after it is drawn inside the lumen of the catheter (12).

    摘要翻译: 多吸入导管(12)包括位于其外护套(16)上的伞(18)。 在使用中,伞(18)应位于肺动脉内。 伞(18)具有网状物(22),血液和血浆通过其自由通过,但是能够在其行进到肺之前捕获栓子和其他物质。 定位检测设备,包括二维超声波探头(44),差分传感器(54和56)以及化学传感器(44),以便检测栓塞何时已经在伞(18)中被捕获。 导管(64)将裂解剂(66)如TPA或肝素输送到被捕获的栓子。 此外,伞(18)可以使用绳索(34)在被捕获的栓塞上关闭,并且可以使用超声波探头(70)将栓子分开,或者可以在将其拉入导管内腔之后通过抽吸将其去除 12)。