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    System and method for hardware-based learning of internet protocol addresses in a network environment
    71.
    发明授权
    System and method for hardware-based learning of internet protocol addresses in a network environment 有权
    网络环境中互联网协议地址的硬件学习系统和方法

    公开(公告)号：US09008095B2

    公开(公告)日：2015-04-14

    申请号：US13633734

    申请日：2012-10-02

    Applicant: Cisco Technology, Inc.

    Inventor： Shyam Kapadia ,  Nilesh Shah ,  Putu H. Subagio

    IPC: H04L12/28 ,  H04L12/56 ,  H04L12/751 ,  H04L12/741 ,  H04L29/12

    CPC classification number: H04L45/08 ,  H04L29/12811 ,  H04L45/74 ,  H04L45/745 ,  H04L49/3009 ,  H04L49/356 ,  H04L61/6009

    Abstract: A method is provided one example embodiment and includes receiving a packet including a source /32 address and a destination /32 address. The source /32 address can indicate an Internet Protocol (IP) address of a source host that sent the packet. The destination /32 address can indicate an IP address of a destination host to which the packet is destined. The method may also include looking up the destination /32 address and the source /32 address in a Forwarding Information Base/adjacency (FIB)/(ADJ) table implemented in a hardware of a leaf switch in a network. Additionally, the method may include adding the source /32 address and corresponding adjacency information to the FIB/ADJ table if the destination /32 address is found in the FIB/ADJ table, and the source /32 address is not found in the FIB/ADJ table. The method may also include forwarding the packet to the destination host.

    Abstract translation: 提供了一种示例性实施例的方法，并且包括接收包括源/ 32地址和目的地/ 32地址的分组。 源/ 32地址可以指示发送数据包的源主机的Internet协议（IP）地址。 目的地址/ 32地址可以指示该目的地目的主机的IP地址。 该方法还可以包括在网络中的叶片交换机的硬件中实现的转发信息库/邻接（FIB）/（ADJ）表中查找目的地/ 32地址和源/ 32地址。 另外，如果在FIB / ADJ表中找到目的地/ 32地址，并且在FIB / ADJ表中没有找到源/ 32地址，则该方法可以包括将源/ 32地址和对应的邻接信息添加到FIB / ADJ表中。 ADJ表。 该方法还可以包括将分组转发到目的地主机。

    Increasing Internet Protocol Version 6 Host Table Scalability in Top of Rack Switches for Data Center Deployments
    73.
    发明申请
    Increasing Internet Protocol Version 6 Host Table Scalability in Top of Rack Switches for Data Center Deployments 有权
    增加数据中心部署机架开关顶部的Internet协议版本6主机表可扩展性

    公开(公告)号：US20140156667A1

    公开(公告)日：2014-06-05

    申请号：US13693090

    申请日：2012-12-04

    Applicant: CISCO TECHNOLOGY, INC.

    Inventor： Shyam Kapadia ,  Ming Zhang ,  Nilesh Shah ,  Putu Harry Subagio

    IPC: G06F17/30

    CPC classification number: G06F17/30946 ,  G06F17/30 ,  H04L45/74

    Abstract: Techniques are provided for optimizing storage of address information in switch device databases. A control packet is received from a source host. An address associated with a host is determined. The address comprises a first and second address component. The first address component is stored in a first database and is mapped to an index value that is stored in the first database. The index value is also stored in a second database along with the second address component. The first database may also be examined to determine whether the first address component is stored in the first database. If the first address component is stored in the first database, the index value mapped to the first address component is retrieved. The second database is examined to determine whether the index value and the second address component are stored in the second database.

    Abstract translation: 提供了技术来优化交换机设备数据库中地址信息的存储。 从源主机接收到控制数据包。 确定与主机相关联的地址。 地址包括第一和第二地址组件。 第一个地址组件存储在第一个数据库中，并被映射到存储在第一个数据库中的索引值。 索引值也与第二地址组件一起存储在第二数据库中。 还可以检查第一数据库以确定第一地址组件是否存储在第一数据库中。 如果第一个地址组件存储在第一个数据库中，则检索映射到第一个地址组件的索引值。 检查第二数据库以确定索引值和第二地址组件是否被存储在第二数据库中。

    SYSTEM AND METHOD FOR OPTIMIZING NEXT-HOP TABLE SPACE IN A DUAL-HOMED NETWORK ENVIRONMENT
    74.
    发明申请
    SYSTEM AND METHOD FOR OPTIMIZING NEXT-HOP TABLE SPACE IN A DUAL-HOMED NETWORK ENVIRONMENT 有权
    用于在双重网络环境中优化下一个表空间的系统和方法

    公开(公告)号：US20140112122A1

    公开(公告)日：2014-04-24

    申请号：US13658610

    申请日：2012-10-23

    Applicant: CISCO TECHNOLOGY, INC.

    Inventor： Shyam Kapadia ,  Nilesh Shah

    IPC: H04L12/24 ,  H04L12/56

    CPC classification number: H04L45/74

    Abstract: A method for optimizing next-hop table space in a dual-homed network environment is provided and includes associating an Emulated Switch Internet Protocol (ES-IP) address and an Emulated Switch Media Access Control (ES-MAC) address with an Emulated Switch Identifier (ES-ID) of an emulated switch connected to a dual-homed host having a host IP address in a network environment, and populating a host route table with a mapping between the host IP address and the ES-IP address. The method further includes receiving an outgoing packet with the host IP address as a destination address, determining the ES-IP address corresponding to the host IP address, sending out an ARP request for a MAC address corresponding to the ES-IP address, receiving the ES-MAC address, determining the ES-ID corresponding to the ES-MAC address, encapsulating the outgoing packet with the ES-ID, and forwarding the packet.

    Abstract translation: 提供了一种用于优化双归属网络环境中的下一跳表空间的方法，并且包括将仿真交换机因特网协议（ES-IP）地址与仿真交换机介质访问控制（ES-MAC）地址与仿真交换机标识符 （ES-ID），其连接到具有网络环境中的主机IP地址的双宿主主机，并且在主机IP地址和ES-IP地址之间的映射中填充主机路由表。 该方法还包括接收主机IP地址作为目的地地址的出局包，确定与主机IP地址对应的ES-IP地址，发送对应于ES-IP地址的MAC地址的ARP请求，接收 ES-MAC地址，确定与ES-MAC地址对应的ES-ID，封装带有ES-ID的出局报文，并转发报文。

    Seamless coexistence of heterogenous networks
    75.
    发明授权
    Seamless coexistence of heterogenous networks 有权

    公开(公告)号：US11985063B2

    公开(公告)日：2024-05-14

    申请号：US17816341

    申请日：2022-07-29

    Applicant: Cisco Technology, Inc.

    Inventor： Lukas Krattiger ,  Shyam Kapadia ,  Massimiliano Ardica ,  Shankar Gopalkrishnan

    IPC: H04L45/745 ,  H04L45/00 ,  H04L61/103

    CPC classification number: H04L45/745 ,  H04L45/22 ,  H04L61/103

    Abstract: Disclosed are systems, apparatuses, methods, and computer-readable media for providing interoperable heterogenous networks. A method comprises configuring a logical network with a first network and a second network; receiving a request message from a source device by the first border device in the first network, wherein the request message includes a related to a media access control (MAC) address associated with a destination device in the second network; sending a proxy message to the second border device based on the request message, the proxy message having a source address that identifies an external IP address associated with the first border device; receiving a response message including the MAC address of the destination device, wherein the response message is addressed to the external address of the first border device; and sending a border gateway protocol (BGP) update including the MAC address of the destination device.

    Staging configuration changes with deployment freeze options
    79.
    发明授权
    Staging configuration changes with deployment freeze options 有权

    公开(公告)号：US11075803B1

    公开(公告)日：2021-07-27

    申请号：US16937162

    申请日：2020-07-23

    Applicant: Cisco Technology, Inc.

    Inventor： Shyam Kapadia ,  Lukas Krattiger ,  Jason David Notari

    IPC: G06F15/173 ,  H04L12/24 ,  H04L29/06

    Abstract: Techniques for a configuration change service to transition a network controller into a frozen state, causing network users submitting configuration changes associated with the network to refrain from deploying the configuration changes for a period of time are disclosed. A first user configured as a stager role may submit data representing a proposed change to the configuration change service, where the proposed change may be stored in association with a list of proposed changes. A second user configured as an approver role may submit data representing an approval or disapproval of the proposed changes to the configuration change service, where a modified list of proposed changes may be generated. A third user configured as an administrator role may submit data configured to transition the controller to an unfrozen state and/or deploy the changes included in the list of proposed changes to the network controller, subsequent to the period of time.

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