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    Distribution of Internal Routes For Virtual Networking
    21.
    发明申请
    Distribution of Internal Routes For Virtual Networking 审中-公开
    虚拟网络内部路由分配

    公开(公告)号：US20160359720A1

    公开(公告)日：2016-12-08

    申请号：US14728821

    申请日：2015-06-02

    Applicant: Futurewei Technologies, Inc.

    Inventor： Renwei Li ,  Katherine Zhao ,  Lin Han

    IPC: H04L12/751 ,  H04L29/08

    CPC classification number: H04L45/02

    Abstract: A method implemented in a network element (NE) configured to implement a cloud rendezvous point (CRP), the method comprising maintaining, at the CRP, a cloud switch point (CSP) database indicating a plurality of CSPs and indicating each virtual network attached to each CSP; receiving a register message indicating a first CSP network address and a first virtual network attached to the first CSP; and sending first report messages indicating the first CSP network address to each CSP in the CSP database attached to the first virtual network.

    Abstract translation: 一种在被配置为实现云集合点（CRP）的网络元件（NE）中实现的方法，所述方法包括在所述CRP处保持指示多个CSP的云交换点（CSP）数据库，并且指示每个虚拟网络附加到 每个CSP; 接收指示第一CSP网络地址的注册消息和附加到所述第一CSP的第一虚拟网络; 以及向附加到第一虚拟网络的CSP数据库中的每个CSP发送指示第一CSP网络地址的第一报告消息。

    Encoding packets for transport over SDN networks
    23.
    发明授权
    Encoding packets for transport over SDN networks 有权
    编码数据包，以便通过SDN网络传输

    公开(公告)号：US09215093B2

    公开(公告)日：2015-12-15

    申请号：US14043048

    申请日：2013-10-01

    Applicant: Futurewei Technologies, Inc.

    Inventor： Lin Han ,  Renwei Li ,  Katherine Zhao ,  Qianglin Quintin Zhao

    IPC: H04L12/28 ,  H04L12/46 ,  H04L12/721

    CPC classification number: H04L12/4633 ,  H04L45/38 ,  H04L2212/00

    Abstract: An ingress node in a Software Defined Network (SDN) comprising a receiver for receiving a data packet, a processor coupled to the receiver and further configured to obtain the data packet from the receiver in a transport protocol agnostic manner, and encapsulate the data packet in an SDN packet header, wherein the packet header comprises SDN flow-specific information provided by an SDN controller, and a transmitter coupled to the processor and further configured to transmit the encapsulated data packet across a single SDN toward an egress node in the SDN.

    Abstract translation: 软件定义网络（SDN）中的入口节点包括用于接收数据分组的接收机，耦合到所述接收机的处理器，并且还被配置为以传输协议无关的方式从所述接收机获得所述数据分组，并将所述数据分组封装在 SDN分组报头，其中所述分组报头包括由SDN控制器提供的SDN特定于流量的信息，以及耦合到所述处理器的发送器，并且还被配置为通过单个SDN向所述SDN中的出口节点发送所述封装数据分组。

    Providing PIM-SM Support for mRSVP-TE Based Multicast Virtual Private Networks
    24.
    发明申请
    Providing PIM-SM Support for mRSVP-TE Based Multicast Virtual Private Networks 有权
    为基于mRSVP-TE的组播虚拟专用网提供PIM-SM支持

    公开(公告)号：US20140003246A1

    公开(公告)日：2014-01-02

    申请号：US13931597

    申请日：2013-06-28

    Applicant: Futurewei Technologies, Inc.

    Inventor： Lin Han ,  Renwei Li ,  Katherine Zhao

    IPC: H04L12/801

    CPC classification number: H04L47/10 ,  H04L12/185

    Abstract: In a source provider edge (PE) router, a method for supporting protocol independent multicast sparse-mode (PIM-SM) using multicast resource reservation protocol-traffic engineering (mRSVP-TE) comprising the steps of creating a protocol independent multicast (PIM) state, sending a first unicast data message to a rendezvous point (RP) PE router using the PIM state, wherein the first unicast data message is a PIM register message encapsulated as a unicast multiprotocol label switching (MPLS) packet, receiving a PIM join message from the RP PE router, wherein the PIM join message triggers creating a second PIM state, sending a second unicast data message to the RP PE router via a default multicast distribution tree (MDT) using the second PIM state, receiving a PIM register-stop message from the RP PE router, wherein the PIM register-stop message suspends sending the second unicast data message.

    Abstract translation: 在源提供商边缘（PE）路由器中，使用组播资源预留协议流量工程（mRSVP-TE）支持协议独立的组播稀疏模式（PIM-SM）的方法，包括创建协议无关组播（PIM） 状态，使用PIM状态向聚集点（RP）PE路由器发送第一单播数据消息，其中所述第一单播数据消息是封装为单播多协议标签交换（MPLS）分组的PIM注册消息，接收PIM加入消息 从RP PE路由器，其中PIM加入消息触发创建第二PIM状态，通过使用第二PIM状态的默认组播分发树（MDT）向RP PE路由器发送第二单播数据消息，接收PIM注册停止 来自RP PE路由器的消息，其中PIM注册停止消息暂停发送第二单播数据消息。

    Supporting Internet Protocol Version 4 (IPv4) Extension Headers
    25.
    发明申请
    Supporting Internet Protocol Version 4 (IPv4) Extension Headers 审中-公开

    公开(公告)号：US20200351388A1

    公开(公告)日：2020-11-05

    申请号：US16931825

    申请日：2020-07-17

    Applicant: Futurewei Technologies, Inc.

    Inventor： Lin Han

    IPC: H04L29/06 ,  H04L12/801 ,  H04L29/08

    Abstract: A method implemented by a network element (NE) comprises generating, by a processor, an Internet Protocol version 4 (IPv4) packet comprising an IPv4 header, a plurality of extension headers, and upper layer data, wherein the IPv4 packet indicates a total length of the IPv4 packet and a total length of the plurality of extension headers, indicating, by the processor, a protocol number associated with a first extension header of the plurality of extension headers in a protocol field of the IPv4 header, indicating, by the processor, a protocol used to encode the upper layer data of the IPv4 packet in a last protocol field of a last extension header of the plurality of extension headers, and transmitting, by a transmitter, the IPv4 packet to another NE.

    Supporting internet protocol version 4 (IPv4) extension headers
    26.
    发明授权
    Supporting internet protocol version 4 (IPv4) extension headers 有权

    公开(公告)号：US10742775B2

    公开(公告)日：2020-08-11

    申请号：US15983670

    申请日：2018-05-18

    Applicant: Futurewei Technologies, Inc.

    Inventor： Lin Han

    IPC: H04L12/801 ,  H04L29/06 ,  H04L29/08

    Abstract: A method implemented by a network element (NE) comprises receiving, by a receiver of the NE, an Internet Protocol (IP) version 4 (IPv4) packet from another NE, wherein the IPv4 packet comprises an IPv4 header, an extension header, and upper layer data, wherein the IPv4 header comprises a protocol number associated with the extension header, and wherein the IPv4 packet comprises a total length of the extension header, and processing, by a processor coupled to the receiver, the IPv4 packet based on the total length of the extension header.

    Method to support multi-protocol for virtualization
    27.
    发明授权
    Method to support multi-protocol for virtualization 有权

    公开(公告)号：US10148458B2

    公开(公告)日：2018-12-04

    申请号：US15349856

    申请日：2016-11-11

    Applicant: Futurewei Technologies, Inc.

    Inventor： Lin Han ,  Renwei Li

    IPC: H04L12/28 ,  H04L12/46 ,  H04L29/12 ,  H04L12/931 ,  H04L12/713 ,  H04L12/723 ,  H04L12/741

    Abstract: A network element (NE) configured as a local cloud switch point (CSP) comprises a memory configured to store remote virtual routing information in association with an identifier (ID) of a remote CSP in a mapping table, wherein the remote virtual routing information is associated with a remote virtual network associated with the remote CSP, and wherein the remote virtual routing information comprises a virtual extensible network (VXN) type identifier (ID), an address family ID (AFI), and a subsequent AFI (SAFI). The NE further comprises a processor coupled to the memory and configured to perform encapsulation on a data packet to generate a encapsulated data packet by adding an outer header to the data packet based on the AFI, adding a virtualization header to the data packet based on the VXN type ID, and adding an inner header to the data packet based on the SAFI. The NE further comprises a transmitter coupled to the processor and configured to transmit the encapsulated data packet to the remote CSP.

    Software defined networking (SDN) specific topology information discovery
    29.
    发明授权
    Software defined networking (SDN) specific topology information discovery 有权

    公开(公告)号：US09749214B2

    公开(公告)日：2017-08-29

    申请号：US14191121

    申请日：2014-02-26

    Applicant: Futurewei Technologies, Inc.

    Inventor： Lin Han

    IPC: H04L12/751 ,  H04L12/715 ,  H04L12/717 ,  H04L12/721

    CPC classification number: H04L45/02 ,  H04L45/04 ,  H04L45/38 ,  H04L45/42 ,  H04L45/46 ,  H04L45/64

    Abstract: Disclosed herein is a mechanism for discovering SDN specific topology information in a SDN interconnection network. SDN specific topology information may comprise SDN IDs, SDN member router ID lists, and SDN address lists. A SDNC associated with a local SDN domain in the SDN interconnection network may determine a set of routers and/or links in the local SDN domain for link advertisement and may associate the set of routers with the local SDN domain. The SDNC may further determine a set of border routers in the local SDN domain for broadcasting the link advertisements and SDN specific topology information to other interconnected SDN domains. The SDNC may receive link advertisement and SDN specific topology information from other interconnected SDN domains and may compute a best path through each router and/or link across the SDN domains.

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