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    Parallel processing for low latency network address translation
    11.
    发明授权
    Parallel processing for low latency network address translation 有权
    并行处理低延迟网络地址转换

    公开(公告)号：US09154415B1

    公开(公告)日：2015-10-06

    申请号：US13755438

    申请日：2013-01-31

    Applicant: Cisco Technology, Inc.

    Inventor： Alessandro Fulli ,  Putu Harry Subagio ,  Chih-Tsung Huang

    IPC: H04L12/741 ,  H04L29/06

    CPC classification number: H04L45/745 ,  H04L29/0653 ,  H04L45/121 ,  H04L45/74 ,  H04L61/2521 ,  H04L69/161 ,  H04L69/22

    Abstract: A packet is received at an ingress port of a networking device and a forwarding result that identifies an egress port for the packet is generated. In parallel with the generation of the forwarding result, a network address translation (NAT) result that identifies one or more NAT rules for possible application to the packet is generated. The forwarding result and the NAT result are then used to generate a routing decision result.

    Abstract translation: 在网络设备的入口处接收到分组，并且生成标识分组的出口端口的转发结果。 与转发结果的产生并行，生成识别用于可能应用于分组的一个或多个NAT规则的网络地址转换（NAT）结果。 然后将转发结果和NAT结果用于生成路由决策结果。

    Indexed access to a forwarding table in a network device
    14.
    发明授权
    Indexed access to a forwarding table in a network device 有权
    索引访问网络设备中的转发表

    公开(公告)号：US09565100B1

    公开(公告)日：2017-02-07

    申请号：US14921460

    申请日：2015-10-23

    Applicant: Cisco Technology, Inc.

    Inventor： Thomas J. Edsall ,  Alessandro Fulli ,  Putu Harry Subagio ,  Chih-Tsung Huang

    IPC: H04L12/741

    CPC classification number: H04L45/54 ,  H04L12/6418

    Abstract: A packet is received at an ingress port of a network device. Based on forwarding information in the packet, an adjacency point is generated using a forwarding information database. If the packet is a routed packet, the adjacency pointer is used as an index to an entry in a media access control (MAC) table that identifies an egress port for the packet. If the packet is not a routed packet, a search is performed in the MAC table to locate an entry in the MAC table that identifies an egress port for the packet.

    Abstract translation: 在网络设备的入口端口接收到分组。 基于分组中的转发信息，使用转发信息数据库生成邻接点。 如果分组是路由分组，则邻接指针被用作标识分组的出口端口的媒体接入控制（MAC）表中的条目的索引。 如果分组不是路由分组，则在MAC表中执行搜索以在MAC表中定位用于标识分组的出口端口的条目。

    Indexed access to a forwarding table in a network device
    16.
    发明授权
    Indexed access to a forwarding table in a network device 有权
    索引访问网络设备中的转发表

    公开(公告)号：US09197552B1

    公开(公告)日：2015-11-24

    申请号：US13767091

    申请日：2013-02-14

    Applicant: Cisco Technology, Inc.

    Inventor： Thomas J. Edsall ,  Alessandro Fulli ,  Putu Harry Subagio ,  Chih-Tsung Huang

    IPC: H04L12/741

    CPC classification number: H04L45/54 ,  H04L12/6418

    Abstract: A packet is received at an ingress port of a network device. Based on forwarding information in the packet, an adjacency point is generated using a forwarding information database. If the packet is a routed packet, the adjacency pointer is used as an index to an entry in a media access control (MAC) table that identifies an egress port for the packet. If the packet is not a routed packet, a search is performed in the MAC table to locate an entry in the MAC table that identifies an egress port for the packet.

    Abstract translation: 在网络设备的入口端口接收到分组。 基于分组中的转发信息，使用转发信息数据库生成邻接点。 如果分组是路由分组，则邻接指针被用作标识分组的出口端口的媒体接入控制（MAC）表中的条目的索引。 如果分组不是路由分组，则在MAC表中执行搜索以在MAC表中定位用于标识分组的出口端口的条目。

    Ultra Low Latency Multi-Protocol Network Device
    18.
    发明申请
    Ultra Low Latency Multi-Protocol Network Device 有权
    超低延迟多协议网络设备

    公开(公告)号：US20140079062A1

    公开(公告)日：2014-03-20

    申请号：US13708200

    申请日：2012-12-07

    Applicant: Cisco Technology, Inc.

    Inventor： Thomas J. Edsall ,  Alessandro Fulli ,  Putu Harry Subagio ,  Mingzhe Li ,  Christopher A. Wildman ,  Yichou Lin ,  Chih-Tsung Huang

    IPC: H04L12/56

    CPC classification number: H04L45/38 ,  H04L45/566 ,  H04L47/12 ,  H04L47/20 ,  H04L47/2441 ,  H04L47/2483

    Abstract: Presented herein are techniques to achieve ultra low latency determination of processing decisions for packets in a network device. A packet is received at a port of a network device. A processing decision is determined in a first processing decision path based on content of the packet and one or more network policies. A processing decision is determined in a second processing decision path, in parallel with the first processing path, by accessing a table storing processing decisions. The second processing decision path can output a processing decision faster than the first processing decision path for packets that match one or more particular packet flow parameters contained in the table. A processing decision determined by the second processing decision path, if one can be made, is used, and otherwise a processing decision determined by the first processing decision path is used.

    Abstract translation: 这里提出的技术是实现超低等待时间确定网络设备中的分组的处理决策。 在网络设备的端口处接收分组。 基于分组的内容和一个或多个网络策略在第一处理决策路径中确定处理决定。 通过访问存储处理决定的表，在与第一处理路径并行的第二处理决定路径中确定处理决定。 第二处理决策路径可以比与表中包含的一个或多个特定分组流参数匹配的分组的第一处理决策路径更快地输出处理决策。 如果使用由第二处理决定路径确定的处理决定，则使用由第一处理判定路径确定的处理决定。

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