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    DISTRIBUTED NETWORK ADDRESS TRANSLATION OVER NETWORK ENVIRONMENTS
    41.
    发明申请
    DISTRIBUTED NETWORK ADDRESS TRANSLATION OVER NETWORK ENVIRONMENTS 有权

    公开(公告)号：US20220174037A1

    公开(公告)日：2022-06-02

    申请号：US17667952

    申请日：2022-02-09

    Applicant: Cisco Technology, Inc.

    Inventor： Victor Manuel Moreno ,  Sanjay Kumar Hooda

    IPC: H04L61/2557 ,  H04L61/2575 ,  H04L61/5038 ,  H04L12/46 ,  H04L61/2592 ,  H04L51/04

    Abstract: This disclosure describes techniques for implementing network address translation as a distributed service over the nodes of a logical network fabric, such as a software-defined network fabric. A method includes registering, by an edge node of a network, an IP address of a client device. The method further includes forwarding, by the edge node, the registered IP address to a control plane of the network. The method further includes checking, by the control plane, a network address translation policy. The method further includes recording, by the control plane, translations between the registered IP address and an allocated IP address in a translation table, each of the translations being related to the edge node. The method further includes returning, by the control plane, the translations between the registered IP address and the allocated IP address to the edge node.

    DISTRIBUTED NETWORK ADDRESS TRANSLATION OVER NETWORK ENVIRONMENTS
    44.
    发明申请
    DISTRIBUTED NETWORK ADDRESS TRANSLATION OVER NETWORK ENVIRONMENTS 有权

    公开(公告)号：US20210152516A1

    公开(公告)日：2021-05-20

    申请号：US16685969

    申请日：2019-11-15

    Applicant: Cisco Technology, Inc.

    Inventor： Victor Manuel Moreno ,  Sanjay Kumar Hooda

    IPC: H04L29/12 ,  H04L12/46

    Abstract: This disclosure describes techniques for implementing network address translation as a distributed service over the nodes of a logical network fabric, such as a software-defined network fabric. A method includes registering, by an edge node of a network, an IP address of a client device. The method further includes forwarding, by the edge node, the registered IP address to a control plane of the network. The method further includes checking, by the control plane, a network address translation policy. The method further includes recording, by the control plane, translations between the registered IP address and an allocated IP address in a translation table, each of the translations being related to the edge node. The method further includes returning, by the control plane, the translations between the registered IP address and the allocated IP address to the edge node.

    INTEROPERABILITY BETWEEN DATA PLANE LEARNING ENDPOINTS AND CONTROL PLANE LEARNING ENDPOINTS IN OVERLAY NETWORKS
    46.
    发明申请
    INTEROPERABILITY BETWEEN DATA PLANE LEARNING ENDPOINTS AND CONTROL PLANE LEARNING ENDPOINTS IN OVERLAY NETWORKS 审中-公开

    公开(公告)号：US20200021555A1

    公开(公告)日：2020-01-16

    申请号：US16577330

    申请日：2019-09-20

    Applicant: Cisco Technology, Inc.

    Inventor： Rex Emmauel Fernando ,  Victor Manuel Moreno ,  Shyam Kapadia ,  Liqin Dong ,  Murali Venkateshaiah

    IPC: H04L29/12

    Abstract: A system and a method are disclosed for enabling interoperability between data plane learning endpoints and control plane learning endpoints in an overlay network environment. An exemplary method for managing network traffic in the overlay network environment includes receiving network packets in an overlay network from data plane learning endpoints and control plane learning endpoints, wherein the overlay network extends Layer 2 network traffic over a Layer 3 network; operating in a data plane learning mode when a network packet is received from a data plane learning endpoint; and operating in a control plane learning mode when the network packet is received from a control plane learning endpoint. Where the overlay network includes more than one overlay segment, the method further includes operating as an anchor node for routing inter-overlay segment traffic to and from hosts that operate behind the data plane learning endpoints.

    Interoperability between data plane learning endpoints and control plane learning endpoints in overlay networks
    47.
    发明授权
    Interoperability between data plane learning endpoints and control plane learning endpoints in overlay networks 有权

    公开(公告)号：US10454877B2

    公开(公告)日：2019-10-22

    申请号：US15143202

    申请日：2016-04-29

    Applicant: CISCO TECHNOLOGY, INC.

    Inventor： Rex Emmanuel Fernando ,  Victor Manuel Moreno ,  Shyam Kapadia ,  Liqin Dong ,  Murali Venkateshaiah

    IPC: H04L29/12 ,  H04L12/46 ,  H04L12/24

    Abstract: A system and a method are disclosed for enabling interoperability between data plane learning endpoints and control plane learning endpoints in an overlay network environment. An exemplary method for managing network traffic in the overlay network environment includes receiving network packets in an overlay network from data plane learning endpoints and control plane learning endpoints, wherein the overlay network extends Layer 2 network traffic over a Layer 3 network; operating in a data plane learning mode when a network packet is received from a data plane learning endpoint; and operating in a control plane learning mode when the network packet is received from a control plane learning endpoint. Where the overlay network includes more than one overlay segment, the method further includes operating as an anchor node for routing inter-overlay segment traffic to and from hosts that operate behind the data plane learning endpoints.

    EXTRANET CONNECTIVITY IN LISP NETWORKS
    48.
    发明申请
    EXTRANET CONNECTIVITY IN LISP NETWORKS 审中-公开

    公开(公告)号：US20190020489A1

    公开(公告)日：2019-01-17

    申请号：US15649479

    申请日：2017-07-13

    Applicant: CISCO TECHNOLOGY, INC.

    Inventor： Victor Manuel Moreno ,  Shyam Kapadia ,  Sanjay Kumar Hooda

    IPC: H04L12/18 ,  H04L29/06 ,  H04L12/24 ,  H04L12/46

    CPC classification number: H04L12/18 ,  H04L12/4633 ,  H04L41/0893 ,  H04L45/16 ,  H04L45/20 ,  H04L69/03

    Abstract: A Location/Identifier Separation Protocol (LISP) mapping server, including: a network interface for communicating with a LISP-enabled network; a mapping database; an extranet policy table; and a shared subnetwork mapping engine (SSME), including at least a hardware platform, configured to: receive a map request from a first endpoint serviced by a first xTR, the first endpoint on a first subnetwork, the map request for a second endpoint; determine that the second endpoint is not a member of the first subnetwork; query the extranet policy table to identify a second subnetwork that the first subnetwork subscribes to, and to determine that the second endpoint is a member of the second subnetwork; and provide to the first subnetwork a routing locator (RLOC) of an xTR servicing the second endpoint.

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