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    LIQUID COOLING DISTRIBUTION IN A MODULAR ELECTRONIC SYSTEM
    23.
    发明申请
    LIQUID COOLING DISTRIBUTION IN A MODULAR ELECTRONIC SYSTEM 有权

    公开(公告)号：US20220039291A1

    公开(公告)日：2022-02-03

    申请号：US17503875

    申请日：2021-10-18

    Applicant: Cisco Technology, Inc.

    Inventor： Rakesh Chopra ,  Mandy Hin Lam ,  M. Baris Dogruoz ,  Joel Richard Goergen

    IPC: H05K7/20

    Abstract: A network communications device includes a chassis, a plurality of modules removably inserted into a plurality of slots in the chassis. A coolant is delivered to a first group of the plurality of modules with a first flow control valve in a first cooling loop and the coolant is delivered to a second group of the plurality of modules with a second flow control valve in a second cooling loop. The network communication device further includes a plurality of sensors for monitoring a temperature in the first cooling loop and the second cooling loop and a control system for controlling delivery of the coolant to the first group and the second group, where the control system controls transmitting a signal to one of the first flow control valve and the second flow control valve to modify a flow of the coolant.

    MULTI-HOP WAN MACSEC OVER IP
    24.
    发明申请
    MULTI-HOP WAN MACSEC OVER IP 有权

    公开(公告)号：US20170104850A1

    公开(公告)日：2017-04-13

    申请号：US15077052

    申请日：2016-03-22

    Applicant: Cisco Technology, Inc.

    Inventor： Kuralvanan Arangasamy ,  Brian Eliot Weis ,  Rakesh Chopra ,  Hugo J.W. Vliegen

    IPC: H04L29/06 ,  H04L12/741 ,  H04L12/28 ,  H04L29/08

    CPC classification number: H04L69/22 ,  H04L12/28 ,  H04L12/4633 ,  H04L63/0428 ,  H04L63/162 ,  H04L63/164

    Abstract: In an egress processing method, an egress frame is received. The egress frame includes an outer Ethernet frame, an Internet Protocol (IP) header, a layer 3 (L3) encapsulation identifying a layer 2 (L2)-over-L3 tunnel protocol, and an inner Ethernet frame with a payload. The outer Ethernet frame, the IP header, and the inner Ethernet frame, and the L3 encapsulation are parsed. Based on results of the parsing, a media access control security (MACsec) policy that defines how to protect the inner Ethernet frame is determined, and the inner Ethernet frame is protected according to the MACsec policy, while leaving unprotected the outer Ethernet frame, the IP header, and the L3 encapsulation, to produce a partly protected output egress frame. The partly protected output egress frame is transmitted to the peer network device over a public wide area network.

    Enabling packet handling information in the clear for MACSEC protected frames
    25.
    发明授权
    Enabling packet handling information in the clear for MACSEC protected frames 有权
    启用数据包处理信息清除MACSEC保护帧

    公开(公告)号：US09571283B2

    公开(公告)日：2017-02-14

    申请号：US14594477

    申请日：2015-01-12

    Applicant: Cisco Technology, Inc.

    Inventor： Rakesh Chopra

    IPC: H04L29/06 ,  H04L9/32 ,  H04L12/723 ,  H04L12/46 ,  H04W12/08

    CPC classification number: H04L9/32 ,  H04L12/462 ,  H04L12/4641 ,  H04L12/4645 ,  H04L45/50 ,  H04L63/0428 ,  H04L63/08 ,  H04L63/162 ,  H04L2209/80 ,  H04W12/08

    Abstract: Techniques are provided to append packet handling information “in the clear” ahead of security related information in a packet to be routed over a network to optimize wide area network deployments of security-configured equipment. In one form, at a network device that performs connectionless secure communication and network routing of packets, data is received from a source device to be sent through a network to a destination device. Packet handling information is inserted in a packet that is to be used to transport the data. The packet handling information is configured to enable controlled handling of the packet in the network and is inserted in an unprotected portion of the packet. Encrypted payload data is generated from the data received from the source device. The encrypted payload data and security information are inserted in a protected portion of the packet and the packet is sent to the network.

    Abstract translation: 提供技术以将数据包处理信息“在清晰的”中提前，以便在要通过网络路由的分组中的安全相关信息之前，以优化安全配置设备的广域网部署。 在一种形式中，在执行无连接安全通信和分组的网络路由的网络设备处，从源设备接收数据以通过网络发送到目的地设备。 分组处理信息被插入到用于传输数据的分组中。 分组处理信息被配置为使得能够对网络中的分组进行受控处理，并且被插入到分组的未受保护的部分中。 从源设备接收的数据生成加密的有效载荷数据。 加密的有效载荷数据和安全信息被插入到分组的受保护部分中，并且分组被发送到网络。

    Precision Timing in a Data Over Cable Service Interface Specification (DOCSIS) System
    26.
    发明申请
    Precision Timing in a Data Over Cable Service Interface Specification (DOCSIS) System 审中-公开
    数据覆盖电缆业务接口规范（DOCSIS）系统中的精确时序

    公开(公告)号：US20150207579A1

    公开(公告)日：2015-07-23

    申请号：US14672961

    申请日：2015-03-30

    Applicant: Cisco Technology, Inc.

    Inventor： John T. Chapman ,  Rakesh Chopra ,  Laurent Montini ,  Michael Overcash

    IPC: H04J3/06

    CPC classification number: H04J3/0661 ,  H04J3/0667 ,  H04J3/0682 ,  H04J3/0688 ,  H04J13/16 ,  H04L1/004 ,  H04L7/033 ,  H04L7/048 ,  H04L12/2801

    Abstract: An accurate non-Data Over Cable Service Interface Specification (non-DOCSIS) clock signal is generated at the downstream output of a DOCSIS network. In one example method, a downstream DOCSIS Timing Protocol (DTP) client in the DOCSIS network is frequency synchronized to an upstream DTP server in the DOCSIS network. DOCSIS timing information, along with one or more timing correction factors received at the DTP client, is used to time synchronize the DTP client to the DTP server. Based on the time and frequency synchronization between the DTP server and the DTP client, the clock signal is generated at the output of the DTP client in accordance with the non-DOCSIS timing protocol.

    Abstract translation: 在DOCSIS网络的下游输出端产生精确的非数据有线服务接口规范（非DOCSIS）时钟信号。 在一个示例性方法中，DOCSIS网络中的下游DOCSIS定时协议（DTP）客户端与DOCSIS网络中的上游DTP服务器频率同步。 DOCSIS定时信息连同在DTP客户端接收的一个或多个定时校正因子被用于将DTP客户端与DTP服务器进行时间同步。 根据DTP服务器与DTP客户端之间的时间和频率同步，根据非DOCSIS定时协议在DTP客户端的输出端生成时钟信号。

    Air cooled cage design
    29.
    发明授权
    Air cooled cage design 有权

    公开(公告)号：US11439041B2

    公开(公告)日：2022-09-06

    申请号：US16922383

    申请日：2020-07-07

    Applicant: Cisco Technology, Inc.

    Inventor： Rakesh Chopra ,  M. Baris Dogruoz ,  Mark Nowell ,  Mandy Hin Lam

    IPC: H01R13/00 ,  H05K7/20 ,  H05K7/14 ,  G02B6/42 ,  H01R13/518

    Abstract: Presented herein are optical module cage designs and heatsink configurations for improved air cooling of pluggable optical modules disposed within the optical module cages. The designs and configurations presented herein facilitate efficient air cooling of higher power pluggable optical modules by enhancing airflow through the optical module cages, increasing contact between the optical modules and the heatsinks, and/or increasing the heatsink dissipation surface area.

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