公开(公告)号：US09491074B2

公开(公告)日：2016-11-08

申请号：US14534461

申请日：2014-11-06

Applicant: Huawei Technologies Co., Ltd.

Inventor： Yizhou Li ,  Weiguo Hao

IPC: H04L12/26 ,  H04L12/733 ,  H04L12/18 ,  H04L12/707 ,  H04L12/703

CPC classification number: H04L43/0811 ,  H04L12/1863 ,  H04L45/20 ,  H04L45/22 ,  H04L45/28

Abstract: The present invention discloses a method, an apparatus, and a system for detecting connectivity. A node receives connectivity detection request information; determines, according to nicknames of target nodes, whether the is one of the target nodes; if the node is one of the target nodes, sends connectivity detection reply information to a source node; if the node is not one of the target nodes, performs corresponding processing according to a value of a hop count and whether the node is on a path that is in the multicast distribution tree and is from the source node to any one of the target nodes. With the present invention, a source node is capable of receiving only a feedback of a node on a true path, thereby making it easier to identify a path.

Abstract translation: 本发明公开了一种检测连通性的方法，装置和系统。 节点接收连接检测请求信息; 根据目标节点的昵称确定是否是目标节点之一; 如果节点是目标节点之一，则向源节点发送连通性检测应答信息; 如果节点不是目标节点之一，则根据跳数的值进行相应的处理，以及节点是否位于组播分发树中的路径上，并且是从源节点到目标节点中的任何一个 。 利用本发明，源节点能够仅接收真实路径上的节点的反馈，从而使得更容易识别路径。

公开(公告)号：US20160142220A1

公开(公告)日：2016-05-19

申请号：US14980649

申请日：2015-12-28

Applicant: Huawei Technologies Co., Ltd.

Inventor： Weiguo Hao ,  Yizhou Li ,  Zhenbin Li

IPC: H04L12/18 ,  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.

Abstract translation: 被配置为接收由多宿主终端系统（TES）发送的第一组播分组的第一多宿主网络虚拟化边缘（NVE），获取所述第一多播分组的入口端口和所述第一组播分组的入口端口和虚拟局域网（VLAN）标识符 第一组播数据包根据入口端口和VLAN ID获取第一组播数据包的虚拟覆盖网络（VN）ID，确定入口端口是否为VN ID的指定转发器（DF），封装第一个组播 当入口端口不是VN ID的DF时，具有扩展NVO3头部的分组，并且将包含扩展NVO3头部的第一组播分组发送到包括第二多宿主NVE的另一NVE，其中扩展的NVO3头部携带 VN ID和对应于入口端口的链路聚合组（LAG）ID。

公开(公告)号：US20130294451A1

公开(公告)日：2013-11-07

申请号：US13788514

申请日：2013-03-07

Applicant: Huawei Technologies Co., Ltd.

Inventor： Yizhou Li ,  Jin Li

IPC: H04L12/56

CPC classification number: H04L45/54 ,  H04L45/64 ,  H04L45/66 ,  H04L45/74 ,  H04L61/103 ,  H04L61/6022

Abstract: The objective of the embodiments of the present invention is to provide a method and an apparatus of sending address correspondence information and updating a MAC table in a data link layer protocol of applying Link State Routing for solving the problem that too much bandwidth is occupied by broadcasting address correspondence information solicitation in a data link layer of applying link state routing. Through adopting the technical solution of the embodiments of the present invention, since besides the ingress network node, other network nodes also store address correspondence information in their address correspondence information tables, so when they receive an address correspondence information solicitation, they can directly reply with an address correspondence information response without broadcasting the solicitation, decreasing the bandwidth occupied by broadcasting address correspondence information solicitation in a data link layer of applying link state routing.

Abstract translation: 本发明的实施例的目的是提供一种发送地址对应信息并更新在应用链路状态路由的数据链路层协议中的MAC表的方法和装置，以解决广播占用太多带宽的问题 应用链路状态路由的数据链路层中的地址对应信息请求。 通过采用本发明的实施例的技术方案，除了进入网络节点之外，其他网络节点还在其地址对应信息表中存储地址对应信息，所以当他们收到地址对应信息请求时，可以直接回复 地址对应信息响应而不广播请求，减少在应用链路状态路由的数据链路层中广播地址对应信息请求占用的带宽。

公开(公告)号：US10764086B2

公开(公告)日：2020-09-01

申请号：US16018867

申请日：2018-06-26

Applicant: Huawei Technologies Co., Ltd.

Inventor： Weiguo Hao ,  Yizhou Li

IPC: H04L12/46 ,  H04L29/12 ,  H04L29/06 ,  H04L12/715 ,  H04L12/741

Abstract: The present disclosure provide a packet processing method, a related apparatus, and an NVO3 network system. A first NVE receives a first packet sent by a first CE, where the first packet includes a MAC address of the first CE and a VLAN ID; the first NVE determines a VNI of the first CE according to an inbound interface of the first packet and the VLAN ID; the first NVE performs NVO3 encapsulation on the first packet to obtain an NVO3 encapsulated first packet, where the NVO3 encapsulated first packet includes the VNI of the first CE, and a source IP address in an NVO3 header of the NVO3 encapsulated first packet is a first shared VTEP IP address shared by the first NVE and a second NVE; and the first NVE forwards the NVO3 encapsulated first packet to a remote NVE.

公开(公告)号：US10218624B2

公开(公告)日：2019-02-26

申请号：US15822714

申请日：2017-11-27

Applicant: Huawei Technologies Co., Ltd.

Inventor： Fei Li ,  Yizhou Li

IPC: H04L12/801 ,  H04L12/723 ,  H04L12/46

Abstract: Embodiments provide a service instance mapping method, apparatus and system. The service instance mapping method includes: correlating a layer-2 service instance with a service access port of the service instance, and determining correspondence between the service access port and a service instance identifier. The method also includes mapping the service instance identifier to a service label of a packet.

公开(公告)号：US09749230B2

公开(公告)日：2017-08-29

申请号：US13788514

申请日：2013-03-07

Applicant: Huawei Technologies Co., Ltd.

Inventor： Yizhou Li ,  Jin Li

IPC: H04L12/741 ,  H04L12/721 ,  H04L29/12 ,  H04L12/715

CPC classification number: H04L45/54 ,  H04L45/64 ,  H04L45/66 ,  H04L45/74 ,  H04L61/103 ,  H04L61/6022

Abstract: The objective of the embodiments of the present invention is to provide a method and an apparatus of sending address correspondence information and updating a MAC table in a data link layer protocol of applying Link State Routing for solving the problem that too much bandwidth is occupied by broadcasting address correspondence information solicitation in a data link layer of applying link state routing. Through adopting the technical solution of the embodiments of the present invention, since besides the ingress network node, other network nodes also store address correspondence information in their address correspondence information tables, so when they receive an address correspondence information solicitation, they can directly reply with an address correspondence information response without broadcasting the solicitation, decreasing the bandwidth occupied by broadcasting address correspondence information solicitation in a data link layer of applying link state routing.

公开(公告)号：US20140043972A1

公开(公告)日：2014-02-13

申请号：US14061535

申请日：2013-10-23

Applicant: Huawei Technologies Co., Ltd.

Inventor： Fei Li ,  Yizhou Li

IPC: H04L12/801 ,  H04L12/723

CPC classification number: H04L47/17 ,  H04L12/4662 ,  H04L45/50

Abstract: The present invention discloses a service instance mapping method, apparatus and system. The service instance mapping method includes: correlating a layer-2 service instance with a service access port of the service instance, and determining correspondence between the service access port and a service instance identifier; and mapping the service instance identifier to a service label of a packet. In embodiments of the present invention, because the service label is adopted to carry the service instance identifier, a higher service label supporting capability may be included, more service instances may be supported, and a multi-tenant requirement in a large-scale public cloud environment can be met; control protocol support is extended, and extension of a TRILL protocol can fulfill a higher service development capability.

Abstract translation: 本发明公开了一种服务实例映射方法，装置和系统。 业务实例映射方法包括：将二层业务实例与业务实例的业务接入端相关联，确定业务接入端口与业务实例标识符的对应关系; 并将服务实例标识符映射到分组的服务标签。 在本发明的实施例中，由于采用业务标签来承载业务实例标识符，所以可以包含更高的业务标签支持能力，可以支持更多的业务实例，大规模公有云中的多租户需求 环境可以满足; 控制协议支持得到扩展，TRILL协议的扩展可以实现更高的业务开发能力。

公开(公告)号：US10277418B2

公开(公告)日：2019-04-30

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: H04B13/02 ,  H04L12/46 ,  H04L12/24 ,  H04L12/751 ,  H04L12/721

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：US10110490B2

公开(公告)日：2018-10-23

申请号：US15243108

申请日：2016-08-22

Applicant: Huawei Technologies Co., Ltd.

Inventor： Weiguo Hao ,  Yizhou Li ,  Hui Ni ,  Shibi Huang

IPC: H04L12/741 ,  H04L12/46 ,  H04L12/715 ,  H04L29/12

Abstract: A method and an apparatus for forwarding a packet, where a first network virtualization edge (NVE) receives a first packet sent by a first tenant end system (TES), where a destination Internet Protocol (IP) address of the first packet is an IP address of a second TES, a destination media access control (MAC) address of the first packet is a gateway MAC address corresponding to the first NVE. The first NVE acquires an access virtual network identifier (VN ID) and a layer 3 virtual private network (VPN) instance identifier of the first TES, and searches a routing and forwarding table, to obtain an entry corresponding to the IP address of the second TES. Then the first NVE encapsulates the first packet into a network virtualization overlays (NVO3) packet according to the entry, and forwards the NVO3 packet to a second NVE to forward to the second TES.

公开(公告)号：US09798572B2

公开(公告)日：2017-10-24

申请号：US15437641

申请日：2017-02-21

Applicant: HUAWEI TECHNOLOGIES CO., LTD.

Inventor： Guang Li ,  Ming Zheng ,  Yizhou Li ,  Jin Li ,  Wei Song

IPC: G06F15/16 ,  G06F9/455 ,  H04L29/12

CPC classification number: G06F9/45558 ,  G06F9/4856 ,  G06F2009/4557 ,  G06F2009/45595 ,  H04L61/103 ,  H04L61/2015

Abstract: The present invention provides a virtual machine migration method, a switch, a virtual machine system. A switch receives a message sent by a server, where the message is used to enable the switch to discover a connected virtual machine interface; obtains, from the message, an identifier for indicating whether a virtual machine is migrating; and determines whether the virtual machine is a virtual machine migrated to the server according to the identifier indicating whether the virtual machine is migrated. According to the embodiments of the present invention, it may be determined whether an added virtual machine on a server is a newly created one or a migrated one.