公开(公告)号：US10700973B2

公开(公告)日：2020-06-30

申请号：US16147179

申请日：2018-09-28

Applicant: HUAWEI TECHNOLOGIES CO., LTD.

Inventor： Shunwan Zhuang ,  Chang Wang ,  Nan Wu ,  Zhenbin Li ,  Hui Ni

IPC: H04L12/741 ,  H04L12/745 ,  H04L12/715 ,  H04L12/721

Abstract: Embodiments of the present disclosure provide a routing control method, network device, and controller. The method may include the network device obtaining a route suppression request. The method may also include determining the second routing entry. Furthermore, the method may include setting a state of the second routing entry to a non-delivery state that is used to indicate that the second routing entry does not need to be delivered to a forwarding table. In the method, the network device may have a first routing entry and a second routing entry, an address prefix of the first routing entry is a first address prefix, an address prefix of the second routing entry is a second address prefix, a network segment to which the second address prefix belongs is a subset of a network segment to which the first address prefix belongs, and a mask in the second address prefix is greater than a mask in the first address prefix.

公开(公告)号：US10680942B2

公开(公告)日：2020-06-09

申请号：US15926872

申请日：2018-03-20

Applicant: HUAWEI TECHNOLOGIES CO., LTD.

Inventor： Shunwan Zhuang ,  Zhenbin Li ,  Shuanglong Chen ,  Guoyi Chen ,  Jia Che ,  Nan Wu

IPC: H04L12/723 ,  H04L12/24 ,  H04L12/46 ,  H04L12/911

Abstract: The present disclosure discloses a packet processing method, device, and system. The system includes: a controller, configured to: allocate a service label to a service processing manner of an FEC, establish a mapping relationship between the service label and the service processing manner, send the service label to a source node, and send the mapping relationship to a destination node; the source node, configured to: receive the service label sent by the controller, receive a first packet, insert the service label to the first packet to obtain a second packet, and send the second packet to the destination node; the destination node, configured to: receive the mapping relationship sent by the controller, receive the second packet sent by the source node, and pop the service label from the second packet according to the mapping relationship, to obtain the first packet.

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.

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.

公开(公告)号：US20170331640A1

公开(公告)日：2017-11-16

申请号：US15663398

申请日：2017-07-28

Applicant: Huawei Technologies Co., Ltd.

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

IPC: H04L12/46 ,  H04L12/24 ,  H04L12/751 ,  H04L12/721

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.

公开(公告)号：US09768968B2

公开(公告)日：2017-09-19

申请号：US14980649

申请日：2015-12-28

Applicant: Huawei Technologies Co., Ltd.

Inventor： Weiguo Hao ,  Yizhou Li ,  Zhenbin Li

IPC: H04L12/28 ,  H04L12/18 ,  H04L12/46 ,  H04L12/761 ,  H04L12/741

CPC classification number: H04L12/18 ,  H04L12/1886 ,  H04L12/46 ,  H04L12/4633 ,  H04L12/4641 ,  H04L45/16 ,  H04L45/74

Abstract: A first multihoming network virtualization edge (NVE) configured to receive a first multicast packet sent by a multihomed tenant end system (TES), acquire an ingress port of the first multicast packet and a virtual local area network (VLAN) identifier (ID) of the first multicast packet, acquire a virtual overlay network (VN) ID of the first multicast packet according to the ingress port and the VLAN ID, determine whether the ingress port is a designated forwarder (DF) of the VN ID, encapsulate the first multicast packet with an extended NVO3 header when the ingress port is not the DF of the VN ID, and send the first multicast packet that is encapsulated with the extended NVO3 header to another NVE that includes a second multihoming NVE, where the extended NVO3 header carries the VN ID and a link aggregation group (LAG) ID that corresponds to the ingress port.

公开(公告)号：US09762410B2

公开(公告)日：2017-09-12

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: G01R31/08 ,  H04L12/28 ,  H04L12/46 ,  H04L12/24 ,  H04L12/751 ,  H04L12/721

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.

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。

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。

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。