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    DETECTION OF A MISCONFIGURED DUPLICATE IP ADDRESS IN A DISTRIBUTED DATA CENTER NETWORK FABRIC
    33.
    发明申请
    DETECTION OF A MISCONFIGURED DUPLICATE IP ADDRESS IN A DISTRIBUTED DATA CENTER NETWORK FABRIC 审中-公开
    在分布式数据中心网络布局中检测到错误的双重IP地址

    公开(公告)号：US20160308825A1

    公开(公告)日：2016-10-20

    申请号：US15195043

    申请日：2016-06-28

    Applicant: Cisco Technology, Inc.

    Inventor： Vipin Jain ,  Anil Lohiya ,  Dhananjaya Rao

    IPC: H04L29/12 ,  H04L12/931 ,  H04L12/26 ,  H04L29/08 ,  H04L12/24

    CPC classification number: H04L61/2046 ,  G06F9/45558 ,  G06F2009/45595 ,  H04L41/044 ,  H04L41/0659 ,  H04L43/04 ,  H04L43/0823 ,  H04L43/16 ,  H04L49/70 ,  H04L61/103 ,  H04L61/20 ,  H04L61/2007 ,  H04L61/2092 ,  H04L67/10

    Abstract: Presented herein are techniques to detect a misconfigured duplicate Internet Protocol (IP) address in a distributed data center network fabric. A network topology is provided that includes a plurality of network elements. A network element receives a configuration message comprising an IP address from a first host associated with the first network element. The IP address is detected to already be in use by a second host associated with a second network element. A request message is provided to the second network element, the request message configured to cause the second network element to attempt to contact the second host. A reply message is received from the second network element. If the reply message indicates that the second host exists at the second network element, an indication of a misconfiguration event is generated. Otherwise, the IP address is associated with the first host.

    Abstract translation: 这里提出的是在分布式数据中心网络结构中检测错误配置的重复的因特网协议（IP）地址的技术。 提供了包括多个网络元件的网络拓扑。 网络元件从与第一网络元件相关联的第一主机接收包括IP地址的配置消息。 检测到IP地址已经被与第二网络元件相关联的第二主机使用。 向第二网络元件提供请求消息，该请求消息被配置为使得第二网络元件尝试接触第二主机。 从第二网络元件接收回复消息。 如果回复消息指示第二主机存在于第二网元，则生成错误配置事件的指示。 否则，IP地址与第一个主机相关联。

    Detection of a misconfigured duplicate IP address in a distributed data center network fabric
    34.
    发明授权
    Detection of a misconfigured duplicate IP address in a distributed data center network fabric 有权
    检测分布式数据中心网络结构中配置错误的重复IP地址

    公开(公告)号：US09413713B2

    公开(公告)日：2016-08-09

    申请号：US14097747

    申请日：2013-12-05

    Applicant: Cisco Technology, Inc.

    Inventor： Vipin Jain ,  Anil Lohiya ,  Dhananjaya Rao

    IPC: H04L12/28 ,  H04L12/56 ,  H04L29/12 ,  G06F9/455

    CPC classification number: H04L61/2046 ,  G06F9/45558 ,  G06F2009/45595 ,  H04L41/044 ,  H04L41/0659 ,  H04L43/04 ,  H04L43/0823 ,  H04L43/16 ,  H04L49/70 ,  H04L61/103 ,  H04L61/20 ,  H04L61/2007 ,  H04L61/2092 ,  H04L67/10

    Abstract: Presented herein are techniques to detect a misconfigured duplicate Internet Protocol (IP) address in a distributed data center network fabric. A network topology is provided that includes a plurality of network elements. A network element receives a configuration message comprising an IP address from a first host associated with the first network element. The IP address is detected to already be in use by a second host associated with a second network element. A request message is provided to the second network element, the request message configured to cause the second network element to attempt to contact the second host. A reply message is received from the second network element. If the reply message indicates that the second host exists at the second network element, an indication of a misconfiguration event is generated. Otherwise, the IP address is associated with the first host.

    Abstract translation: 这里提出的是在分布式数据中心网络结构中检测错误配置的重复的因特网协议（IP）地址的技术。 提供了包括多个网络元件的网络拓扑。 网络元件从与第一网络元件相关联的第一主机接收包括IP地址的配置消息。 检测到IP地址已经被与第二网络元件相关联的第二主机使用。 向第二网络元件提供请求消息，该请求消息被配置为使得第二网络元件尝试接触第二主机。 从第二网络元件接收回复消息。 如果回复消息指示第二主机存在于第二网元，则生成错误配置事件的指示。 否则，IP地址与第一个主机相关联。

    Host traffic driven network orchestration within data center fabric
    35.
    发明授权
    Host traffic driven network orchestration within data center fabric 有权
    数据中心架构内的主机流量驱动网络编排

    公开(公告)号：US09294349B2

    公开(公告)日：2016-03-22

    申请号：US14053988

    申请日：2013-10-15

    Applicant: Cisco Technology, Inc.

    Inventor： Vipin Jain ,  Dhananjaya Rao ,  Palathingal Frank ,  Shyam Kapadia ,  Nilesh Shah

    IPC: H04L12/24

    CPC classification number: H04L41/0806 ,  H04L41/0816

    Abstract: Presented herein are techniques to handle data packets received at a top-of-rack (ToR) switch in an underlay network hosting one or more tenant networks. The underlay network may comprise a plurality of ToR switches each connected to each of a plurality of spine switches. The data packet may be received from a virtual machine in a tenant network, and have a header with a data packet identifier. A mobility domain identifier may be determined that corresponds to the network portion within which the virtual machine can be migrated. The mobility domain may be configured on the ToR switch on a per-port basis based on the virtual machine connected to the ToR switch port. A unique identifier may be formed based on the data packet identifier and mobility domain identifier. Using this unique identifier, provisioning information may be obtained for the tenant network on the ToR switch.

    Abstract translation: 这里提出的是处理在托管一个或多个租户网络的底层网络中的机架顶部（ToR）交换机处接收的数据分组的技术。 底层网络可以包括多个ToR开关，每个ToR开关连接到多个脊柱开关中的每一个。 可以从租户网络中的虚拟机接收数据分组，并具有具有数据分组标识符的报头。 可以确定对应于可以迁移虚拟机的网络部分的移动性域标识符。 基于连接到ToR交换机端口的虚拟机，每个端口可以在ToR交换机上配置移动性域。 可以基于数据分组标识符和移动性域标识符形成唯一标识符。 使用该唯一标识符，可以为ToR交换机上的租户网络获取供应信息。

    IMPLEMENTATION OF VIRTUAL EXTENSIBLE LOCAL AREA NETWORK (VXLAN) IN TOP-OF-RACK SWITCHES IN A NETWORK ENVIRONMENT
    36.
    发明申请
    IMPLEMENTATION OF VIRTUAL EXTENSIBLE LOCAL AREA NETWORK (VXLAN) IN TOP-OF-RACK SWITCHES IN A NETWORK ENVIRONMENT 有权
    虚拟可扩展的局域网（VXLAN）在网络环境中的顶层开关中的实现

    公开(公告)号：US20150063353A1

    公开(公告)日：2015-03-05

    申请号：US14018134

    申请日：2013-09-04

    Applicant: CISCO TECHNOLOGY, INC.

    Inventor： Shyam Kapadia ,  Puto H. Subagio ,  Yibin Yang ,  Nilesh Shah ,  Vipin Jain ,  Ashutosh Agrawal

    IPC: H04L12/741 ,  H04L12/56

    CPC classification number: H04L45/745 ,  H04L45/741

    Abstract: An example method for implementation of virtual extensible local area network (VXLAN) in top-of-rack (ToR) switches in a network environment is provided and includes receiving a packet encapsulated with a VXLAN header having an unknown virtual tunnel endpoint (VTEP) Internet Protocol (IP) address in a network environment, and installing an entry at an index location of a forwarding table. The index location includes an encoding of the VTEP-IP address as a VTEP index (VTEP-IDX), and the entry maps a VXLAN interface to an IP address associated with a VXLAN network interface (VNI). In specific embodiments, the VTEP-IDX is logN bits, where N is a size of the forwarding table. The forwarding table indicates a destination VTEP IP address when encapsulating the packet, and the source VTEP IP address when decapsulating the packet.

    Abstract translation: 提供了一种用于在网络环境中在机架（ToR）交换机中实现虚拟可扩展局域网（VXLAN）的示例性方法，包括接收使用具有未知虚拟隧道端点（VTEP）Internet的VXLAN头封装的分组 网络环境中的协议（IP）地址，以及在转发表的索引位置安装条目。 索引位置包括作为VTEP索引（VTEP-IDX）的VTEP-IP地址的编码，并且该条目将VXLAN接口映射到与VXLAN网络接口（VNI）相关联的IP地址。 在具体实施例中，VTEP-IDX是logN比特，其中N是转发表的大小。 转发表在封装数据包时指示目标VTEP IP地址，解封装数据包时的源VTEP IP地址。

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