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    LSP establishment method and network device
    121.
    发明授权
    LSP establishment method and network device 有权

    公开(公告)号：US10547542B2

    公开(公告)日：2020-01-28

    申请号：US14862637

    申请日：2015-09-23

    Applicant: HUAWEI TECHNOLOGIES CO., LTD.

    Inventor： Zhenbin Li ,  Jianguo Xue ,  Xinzong Zeng

    IPC: H04L12/723 ,  H04L12/721 ,  H04L12/911

    Abstract: An LSP establishment method and a network device, where the method includes: generating, by a first network device, a first Path message, where the first Path message carries an address of a second network device, and the first Path message is used to request establishment a first LSP; and sending, the first Path message to the second network device, and establishing the first LSP, where the first Path message further carries an address of a target network device, so that the second network device stitches the first LSP and a second LSP according to the address of the target network device, so as to form a third LSP from the first network device to the target network device. This technical solutions are conducive to implementing convergence of an access network of an IP RAN and an IP backbone network.

    Packet forwarding method, controller, forwarding device, and network system
    122.
    发明授权
    Packet forwarding method, controller, forwarding device, and network system 有权

    公开(公告)号：US10021023B2

    公开(公告)日：2018-07-10

    申请号：US15098790

    申请日：2016-04-14

    Applicant: HUAWEI TECHNOLOGIES CO., LTD.

    Inventor： Zhenbin Li ,  Yuanbin Yin

    IPC: H04L12/723 ,  H04L12/70 ,  H04L12/751 ,  H04L12/703 ,  H04L12/715

    CPC classification number: H04L45/50 ,  H04L45/02 ,  H04L45/04 ,  H04L45/28 ,  H04L47/00

    Abstract: A network system includes one controller and a plurality of forwarding devices, where the forwarding devices forms a plurality of network topologies; the controller is configured to: allocate, according to a different attribute requirement of a virtual link on a basic link in the network topology, a link global label to the basic link based on the attribute requirement, and send a link binding relationship between the link global label and to the forwarding devices, where global labels allocated to each virtual link are different; and the forwarding devices is configured to receive the link binding relationship, and generate a label forwarding entry including a mapping relationship between the link global label and virtual link forwarding information, where the virtual link forwarding information includes the basic link and specified attribute processing that are corresponding to the global label.

    PACKET FORWARDING METHOD, CONTROLLER, FORWARDING DEVICE, AND NETWORK SYSTEM
    126.
    发明申请
    PACKET FORWARDING METHOD, CONTROLLER, FORWARDING DEVICE, AND NETWORK SYSTEM 有权
    分组前向方法，控制器，前向设备和网络系统

    公开(公告)号：US20160234106A1

    公开(公告)日：2016-08-11

    申请号：US15099169

    申请日：2016-04-14

    Applicant: Huawei Technologies Co., Ltd.

    Inventor： Zhenbin Li

    IPC: H04L12/723 ,  H04L12/66 ,  H04L12/46 ,  H04L12/751 ,  H04L12/741

    CPC classification number: H04L45/50 ,  H04L12/4641 ,  H04L12/465 ,  H04L12/66 ,  H04L45/02 ,  H04L45/026 ,  H04L45/507 ,  H04L45/745

    Abstract: A network system includes one controller and a plurality of forwarding devices, where the forwarding devices form a plurality of virtual network topologies; the controller is configured to allocate a global label to each of the plurality of virtual network topologies, and send a binding relationship between the global labels and the virtual network topologies to the forwarding devices, where global labels allocated to different virtual network topologies are different; the forwarding devices are configured to receiving the binding relationship, and generate label forwarding entries including a mapping relationship between the global labels and forwarding information bases; and when a packet received by the forwarding device carries a global label, the forwarding device searches according to the global label, a forwarding information base of a virtual network topology corresponding to the global label, and determines that the packet is to be forwarded by using the forwarding information base.

    Abstract translation: 网络系统包括一个控制器和多个转发设备，其中转发设备形成多个虚拟网络拓扑; 控制器被配置为向多个虚拟网络拓扑中的每一个分配全局标签，并且向转发设备发送全局标签和虚拟网络拓扑之间的绑定关系，其中分配给不同虚拟网络拓扑的全局标签是不同的; 转发设备配置为接收绑定关系，生成标签转发表项，包括全局标签与转发信息库之间的映射关系; 并且当转发设备收到的分组携带全局标签时，转发设备根据全局标签搜索与全局标签相对应的虚拟网络拓扑的转发信息库，并通过使用 转发信息库。

    Method and Device for Clearing Media Access Control Forwarding Entry
    127.
    发明申请
    Method and Device for Clearing Media Access Control Forwarding Entry 有权
    清除媒体访问控制转发条目的方法和设备

    公开(公告)号：US20150092602A1

    公开(公告)日：2015-04-02

    申请号：US14562678

    申请日：2014-12-06

    Applicant: Huawei Technologies Co., Ltd.

    Inventor： Weiguo Hao ,  Yizhou Li ,  Zhenbin Li ,  Yuanbin Yin ,  Chenglong Ding

    IPC: H04L12/46 ,  H04L12/24

    CPC classification number: H04L12/462 ,  H04L12/4641 ,  H04L41/12 ,  H04L45/02 ,  H04L45/66

    Abstract: The present application provides a method and a device for clearing a MAC forwarding entry. The method includes: detecting, by a first RB, that a topology of a network accessed by a local terminal changes; and sending, by the first RB, a first packet to a second RB, so that the second RB clears a corresponding forwarding entry after receiving the first packet, where the second RB refers to an RB configured with at least one VLAN the same as that of the first RB. According to embodiments of the present application, after the topology of the network accessed by the local terminal changes, MAC forwarding entries of relevant devices in a whole network can be cleared in time, thereby avoiding a forwarding error.

    Abstract translation: 本申请提供了清除MAC转发表项的方法和设备。 该方法包括：由第一RB检测由本地终端接入的网络的拓扑变化; 并且由第一RB发送第一分组到第二RB，使得第二RB在接收到第一分组之后清除对应的转发表项，其中第二RB参考配置有至少一个VLAN的RB，与其相同 的第一个RB。 根据本申请的实施例，本地终端接入的网络拓扑变化后，可以及时清除整个网络的相关设备的MAC转发表项，从而避免转发错误。

    Virtual Private Network Implementation Method and System Based on Traffic Engineering Tunnel
    128.
    发明申请
    Virtual Private Network Implementation Method and System Based on Traffic Engineering Tunnel 审中-公开
    基于交通工程隧道的虚拟专网实施方法与系统

    公开(公告)号：US20140219135A1

    公开(公告)日：2014-08-07

    申请号：US14252055

    申请日：2014-04-14

    Applicant: Huawei Technologies Co., Ltd.

    Inventor： Zhenbin Li ,  Jingming Yu ,  Dan Qu

    IPC: H04L12/46 ,  H04L12/24

    CPC classification number: H04L41/12 ,  H04L12/4633 ,  H04L12/4641

    Abstract: Embodiments of the present invention provide a virtual private network implementation method and system based on a traffic engineering tunnel. The virtual private network implementation method based on a traffic engineering tunnel includes: establishing a traffic engineering tunnel in response to establishment information about a virtual private network service; bearing the virtual private network service using the traffic engineering tunnel; and deleting the traffic engineering tunnel in response to cancellation information about the virtual private network service. In the foregoing manner, a traffic engineering tunnel is dynamically established or deleted according to a requirement of a virtual private network service, a mechanism for establishing a TE tunnel as required is provided, and the tunnel not used by the virtual private network service is deleted in time, thereby effectively saving network resources.

    Abstract translation: 本发明的实施例提供一种基于业务工程隧道的虚拟专网实现方法和系统。 基于流量工程隧道的虚拟专网实现方法包括：响应于虚拟专网服务的建立信息建立流量工程隧道; 使用交通工程隧道承载虚拟专网服务; 以及响应于关于虚拟专用网服务的取消信息，删除流量工程隧道。 以上述方式，根据虚拟专用网业务的要求动态建立或删除流量工程隧道，根据需要提供建立TE隧道的机制，删除虚拟专网服务不使用的隧道 及时，从而有效节省网络资源。

    Method and System for Establishing Tunnels
    129.
    发明申请
    Method and System for Establishing Tunnels 有权
    隧道建设方法与制度

    公开(公告)号：US20130329726A1

    公开(公告)日：2013-12-12

    申请号：US13903848

    申请日：2013-05-28

    Applicant: Huawei Technologies Co., LTD.

    Inventor： Zhenbin Li ,  Tieying Huang ,  Nan Meng ,  Feng Ke ,  Chun Liu

    IPC: H04L12/24

    CPC classification number: H04L41/0836 ,  H04L12/4633

    Abstract: A method for establishing tunnels includes establishing a first unidirectional tunnel from a first node to a second node, and sending a first instruction for establishing a reverse tunnel of the first tunnel, when sending the first instruction to the second node, triggering the establishment of a second unidirectional tunnel from the second node to the first node, and binding the second tunnel to the first tunnel as the reverse tunnel of the first tunnel. A system for establishing tunnels is also provided. The establishment of a reverse tunnel may be automatically triggered after a forward tunnel is established, and a bidirectional tunnel is established.

    Abstract translation: 一种用于建立隧道的方法包括建立从第一节点到第二节点的第一单向隧道，以及当向第二节点发送第一指令时，发送用于建立第一隧道的反向隧道的第一指令，触发建立 从第二节点到第一节点的第二单向隧道，并将第二隧道绑定到第一隧道作为第一隧道的反向隧道。 还提供了建立隧道的系统。 在建立前向隧道后可以自动触发反向隧道的建立，建立双向隧道。

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