公开(公告)号：US09825771B2

公开(公告)日：2017-11-21

申请号：US14820128

申请日：2015-08-06

Applicant: Huawei Technologies Co., Ltd.

Inventor： Xinping Wang ,  Xiaoqian Wu ,  Jiehui Hu ,  Guoqi Xu

IPC: H04L12/18 ,  H04L12/761 ,  H04L12/46 ,  H04L12/715 ,  H04L12/775

CPC classification number: H04L12/185 ,  H04L12/4625 ,  H04L45/16 ,  H04L45/58 ,  H04L45/64

Abstract: The method of establishing a multicast data channel in a network virtualization system includes: creating, on a controller, a virtual remote logical interface for an external interface of a remote node; generating, a multicast tree tunnel that uses a core node as a root, and obtaining a multicast protocol packet sent by a device outside the network virtualization system; acquiring, a multicast source address and a multicast group address from the multicast protocol packet, and generating a multicast forwarding table; searching, the multicast forwarding table for an external interface of the core node, searching for an outbound interface of the multicast tree tunnel on the core node according to the multicast tree tunnel, and generating a P2MP PW forwarding table of the core node, and sending the P2MP PW forwarding table of the core node to the core node. The method implements a multicast service in a virtual cluster router.

公开(公告)号：US10003540B2

公开(公告)日：2018-06-19

申请号：US14949575

申请日：2015-11-23

Applicant: Huawei Technologies Co., Ltd.

Inventor： Enhui Liu ,  Xinping Wang ,  Chengyong Lin

IPC: H04L12/853 ,  H04L29/08 ,  H04L12/813 ,  H04L12/855 ,  H04L12/859 ,  H04L12/851 ,  H04L12/717

CPC classification number: H04L47/2416 ,  H04L45/42 ,  H04L47/20 ,  H04L47/2466 ,  H04L47/2475 ,  H04L47/2483 ,  H04L67/32

Abstract: The present application discloses a flow forwarding method, device, and system. The method includes: receiving, by an edge node, an intelligent routing service request packet, and the packet includes a constraint condition required for establishing the intelligent routing service; if the edge node does not find, in a flow table, a corresponding matching flow table entry of characteristic information, sending, by the edge node, a first message to a controller, where the first message includes identification information of the edge node and the characteristic information and the edge node is an ingress edge-node or an egress edge-node that receives the packet; receiving, a first flow table entry sent by the controller, where the first flow table entry is generated according to the first message and meets the constraint condition; and processing, according to the first flow table entry, a packet sent by the user side device.

公开(公告)号：US09954773B2

公开(公告)日：2018-04-24

申请号：US14598624

申请日：2015-01-16

Applicant: Huawei Technologies Co., Ltd.

Inventor： Jiehui Hu ,  Xiaoqian Wu ,  Yongnian Huang ,  Xinping Wang ,  Jie Yang

IPC: H04L12/723 ,  H04L12/717 ,  H04L12/733 ,  H04L12/707 ,  H04L12/715

CPC classification number: H04L45/507 ,  H04L45/20 ,  H04L45/22 ,  H04L45/42 ,  H04L45/64

Abstract: Embodiments of the present invention provide a label switching path establishment method, a data forwarding method, and a device. The establishment method includes: determining, by a first service controller, each hop on an LSP from a preset ingress to a preset egress, allocating, from first label space information of each hop, a label to each hop, determining incoming and outgoing information of each hop according to topology information of each hop, generating forwarding data of each hop, and sending the forwarding data of each hop to a node device corresponding to each hop to complete establishment of the LSP. A technical solution of the present invention can alleviate burden of a node device in an MPLS network and increase the number of LSPs that the node device is capable of supporting.

公开(公告)号：US20160036726A1

公开(公告)日：2016-02-04

申请号：US14884243

申请日：2015-10-15

Applicant: Huawei Technologies Co., Ltd.

Inventor： Enhui Liu ,  Xinping Wang

IPC: H04L12/931 ,  H04L12/761 ,  H04L12/18 ,  H04L12/713

CPC classification number: H04L49/201 ,  H04L12/18 ,  H04L12/1854 ,  H04L12/1886 ,  H04L45/16 ,  H04L45/586 ,  H04L49/70

Abstract: The embodiments of the present invention relate to the field of computer networks, and disclose a method and an apparatus for processing a multicast packet. The method includes receiving a multicast packet, acquiring a local router interface corresponding to the multicast packet according to a multicast routing entry carried in the multicast packet, and forwarding the multicast packet through the acquired local router interface to a clustered routing system interface for further transfer. The embodiments of the present invention can cluster several routing devices into a virtual routing system which externally acts as a single routing node for supporting a multicast service, so as to implement the efficient and reliable forwarding of the multicast packet in a clustered routing system with virtual aggregation, and enable the clustered routing system to support the multicast service with high efficiency and quality.

Abstract translation: 本发明的实施例涉及计算机网络领域，并且公开了一种用于处理组播分组的方法和装置。 该方法包括接收组播报文，根据组播报文携带的组播路由表项获取对应于组播报文的本地路由器接口，并通过获取的本地路由器接口将组播报文转发到集群路由系统接口进行进一步传输 。 本发明的实施例可以将多个路由设备集群到虚拟路由系统中，该虚拟路由系统在外部充当用于支持多播服务的单个路由节点，以便在具有虚拟的集群路由系统中实现多播分组的有效和可靠的转发 聚合，使集群路由系统能够以高效，高质量的方式支持组播业务。

公开(公告)号：US20150349970A1

公开(公告)日：2015-12-03

申请号：US14820128

申请日：2015-08-06

Applicant: Huawei Technologies Co., Ltd.

Inventor： Xinping Wang ,  Xiaoqian Wu ,  Jiehui Hu ,  Guoqi Xu

IPC: H04L12/18 ,  H04L12/761

CPC classification number: H04L12/185 ,  H04L12/4625 ,  H04L45/16 ,  H04L45/58 ,  H04L45/64

Abstract: The method of establishing a multicast data channel in a network virtualization system includes: creating, on a controller, a virtual remote logical interface for an external interface of a remote node; generating, a multicast tree tunnel that uses a core node as a root, and obtaining a multicast protocol packet sent by a device outside the network virtualization system; acquiring, a multicast source address and a multicast group address from the multicast protocol packet, and generating a multicast forwarding table; searching, the multicast forwarding table for an external interface of the core node, searching for an outbound interface of the multicast tree tunnel on the core node according to the multicast tree tunnel, and generating a P2MP PW forwarding table of the core node, and sending the P2MP PW forwarding table of the core node to the core node. The method implements a multicast service in a virtual cluster router.

Abstract translation: 在网络虚拟化系统中建立组播数据信道的方法包括：在控制器上创建用于远程节点的外部接口的虚拟远程逻辑接口; 生成以核心节点为根的组播树隧道，获取由网络虚拟化系统外的设备发送的组播协议报文; 从组播协议报文获取组播源地址和组播组地址，生成组播转发表; 搜索核心节点外部接口的组播转发表，根据组播树隧道在核心节点上搜索组播树隧道的出接口，生成核心节点的P2MP PW转发表，并发送 核心节点的P2MP PW转发表到核心节点。 该方法在虚拟集群路由器中实现组播业务。

公开(公告)号：US20140082197A1

公开(公告)日：2014-03-20

申请号：US14083800

申请日：2013-11-19

Applicant: HUAWEI TECHNOLOGIES CO., LTD.

Inventor： Xinping Wang

IPC: H04L12/721 ,  H04L29/06

CPC classification number: H04L45/14 ,  H04L12/4633 ,  H04L41/04 ,  H04L41/12 ,  H04L69/02

Abstract: The present invention relates to a method for generating a tunnel forwarding entry and a network device. An active master node in a virtual cluster network element VNE generates, according to a preconfigured tunnel service, tunnel service information with the VNE being a single network element; the active master node determines multiple nodes through which a tunnel that corresponds to the tunnel service information passes in the VNE, and node statuses of the multiple nodes through which the tunnel passes in the VNE; and local tunnel forwarding entries are generated, according to the tunnel service information and the node statuses of the multiple nodes through which the tunnel passes in the VNE, for the multiple nodes through which the tunnel passes in the VNE.

Abstract translation: 本发明涉及一种用于生成隧道转发表项和网络设备的方法。 根据预配置的隧道服务，虚拟集群网元VNE中的主动主节点生成具有VNE作为单个网元的隧道服务信息; 主动主节点确定多个节点，隧道服务信息对应的隧道通过该隧道通过VNE，以及隧道在VNE中通过的多个节点的节点状态; 根据隧道服务信息和隧道在VNE中通过的多个节点的节点状态，为隧道在VNE中通过的多个节点生成本地隧道转发表项。

公开(公告)号：US20180041352A1

公开(公告)日：2018-02-08

申请号：US15785167

申请日：2017-10-16

Applicant: Huawei Technologies Co., Ltd.

Inventor： Xinping Wang ,  Xiaoqian Wu ,  Jiehui Hu ,  Guoqi Xu

IPC: H04L12/18 ,  H04L12/761 ,  H04L12/46 ,  H04L12/775 ,  H04L12/715

CPC classification number: H04L12/185 ,  H04L12/4625 ,  H04L45/16 ,  H04L45/58 ,  H04L45/64

Abstract: The method of establishing a multicast data channel in a network virtualization system includes: creating, on a controller, a virtual remote logical interface for an external interface of a remote node; generating, a multicast tree tunnel that uses a core node as a root, and obtaining a multicast protocol packet sent by a device outside the network virtualization system; acquiring, a multicast source address and a multicast group address from the multicast protocol packet, and generating a multicast forwarding table; searching, the multicast forwarding table for an external interface of the core node, searching for an outbound interface of the multicast tree tunnel on the core node according to the multicast tree tunnel, and generating a P2MP PW forwarding table of the core node, and sending the P2MP PW forwarding table of the core node to the core node. The method implements a multicast service in a virtual cluster router.

公开(公告)号：US20150349978A1

公开(公告)日：2015-12-03

申请号：US14819187

申请日：2015-08-05

Applicant: Huawei Technologies Co., Ltd.

Inventor： Xiaoqian Wu ,  Jiehui Hu ,  Jie Yang ,  Yuangui Wen ,  Xinping Wang

IPC: H04L12/46 ,  H04L12/709 ,  H04L12/24

CPC classification number: H04L12/4675 ,  H04L12/4641 ,  H04L41/0803 ,  H04L45/245

Abstract: A method resolves connectivity of services inside a network virtualization system when a virtual cluster system supports unicast IP, L2VPN, and L3VPN services, so that the software network virtualization system can support various types of services efficiently and with high quality. The method includes: creating, on a control device, a virtualized remote logical interface for an external interface of a remote access node; identifying, by the control device according to a service configured on the virtualized remote logical interface, a service type of the service, and generating virtual link forwarding entries of the remote access node and a core aggregation node; and sending, by the control device, the virtual link forwarding entry to the remote access node and the core aggregation node, so as to set up a virtual link between the core aggregation node and the remote access node.

Abstract translation: 当虚拟集群系统支持单播IP，L2VPN和L3VPN业务时，一种方法可以解决网络虚拟化系统内部业务的连通性，从而软件网络虚拟化系统能够高效，高质量地支持各种业务。 该方法包括：在控制设备上创建用于远程接入节点的外部接口的虚拟化远程逻辑接口; 由所述控制装置根据所述虚拟化远程逻辑接口上配置的业务识别所述业务的业务类型，生成所述远程接入节点和核心聚合节点的虚拟链路转发表项; 以及由所述控制设备将所述虚拟链路转发表项发送到所述远程接入节点和所述核心聚合节点，以便在所述核心聚合节点与所述远程接入节点之间建立虚拟链路。

公开(公告)号：US20150124830A1

公开(公告)日：2015-05-07

申请号：US14598624

申请日：2015-01-16

Applicant: Huawei Technologies Co., Ltd.

Inventor： Jiehui Hu ,  Xiaoqian Wu ,  Yongnian Huang ,  Xinping Wang ,  Jie Yang

IPC: H04L12/723 ,  H04L12/707 ,  H04L12/733

CPC classification number: H04L45/507 ,  H04L45/20 ,  H04L45/22 ,  H04L45/42 ,  H04L45/64

Abstract: Embodiments of the present invention provide a label switching path establishment method, a data forwarding method, and a device. The establishment method includes: determining, by a first service controller, each hop on an LSP from a preset ingress to a preset egress, allocating, from first label space information of each hop, a label to each hop, determining incoming and outgoing information of each hop according to topology information of each hop, generating forwarding data of each hop, and sending the forwarding data of each hop to a node device corresponding to each hop to complete establishment of the LSP. A technical solution of the present invention can alleviate burden of a node device in an MPLS network and increase the number of LSPs that the node device is capable of supporting.

Abstract translation: 本发明的实施例提供了一种标签交换路径建立方法，数据转发方法和装置。 所述建立方法包括：由第一业务控制器确定LSP上的每跳从预设入口到预设出口，从每跳的第一标签空间信息分配标签到每一跳，确定进入和离开的信息 根据每跳的拓扑信息，每跳，生成每一跳的转发数据，并将每一跳的转发数据发送到与每一跳相对应的节点设备，以完成LSP的建立。 本发明的技术方案可以减轻MPLS网络中节点设备的负担，增加节点设备支持的LSP数量。

公开(公告)号：US11133949B2

公开(公告)日：2021-09-28

申请号：US15785167

申请日：2017-10-16

Applicant: Huawei Technologies Co., Ltd.

Inventor： Xinping Wang ,  Xiaoqian Wu ,  Jiehui Hu ,  Guoqi Xu

IPC: H04L12/18 ,  H04L12/761 ,  H04L12/46 ,  H04L12/715 ,  H04L12/775

Abstract: The method of establishing a multicast data channel in a network virtualization system includes: creating, on a controller, a virtual remote logical interface for an external interface of a remote node; generating, a multicast tree tunnel that uses a core node as a root, and obtaining a multicast protocol packet sent by a device outside the network virtualization system; acquiring, a multicast source address and a multicast group address from the multicast protocol packet, and generating a multicast forwarding table; searching, the multicast forwarding table for an external interface of the core node, searching for an outbound interface of the multicast tree tunnel on the core node according to the multicast tree tunnel, and generating a P2MP PW forwarding table of the core node, and sending the P2MP PW forwarding table of the core node to the core node. The method implements a multicast service in a virtual cluster router.