公开(公告)号：US11095553B2

公开(公告)日：2021-08-17

申请号：US16883716

申请日：2020-05-26

Applicant: HUAWEI TECHNOLOGIES CO., LTD.

Inventor： Yuanbin Ouyang ,  Shunwan Zhuang ,  Fengqing Yu ,  Tao Bai ,  Lili Wang

IPC: H04L12/741 ,  H04L12/751 ,  H04L12/707 ,  H04L12/64 ,  H04L12/24 ,  H04L12/773

Abstract: A method, an apparatus and a system for controlling routing information advertising are provided, which relate to the field of communications and are used for reducing the configuration complexity and reinforcing the operability. The method includes: receiving, by a control device, first routing information sent by a first forwarding device; wherein the first routing information includes an identifier of the first forwarding device; determining a first routing path according to the identifier of the first forwarding device, an identifier of a second forwarding device and a routing path group; and determining an advertising range of second routing information for the second forwarding device according to the first routing path; for enabling the second forwarding device to advertise the second routing information according to the advertising range of the second routing information.

公开(公告)号：US11075839B2

公开(公告)日：2021-07-27

申请号：US16236593

申请日：2018-12-30

Applicant: HUAWEI TECHNOLOGIES CO., LTD.

Inventor： Shunwan Zhuang ,  Junlin Zhang ,  Nan Wu

IPC: H04L12/741 ,  H04L12/725 ,  H04L12/66 ,  H04L12/801 ,  H04L12/24

Abstract: The disclosure application discloses a method. The method includes: determining, by a control node, routing entry information of a service function forwarding node in a SFP in the SFC, where the routing entry information records a mapping relationship between route prefix information and next hop information, the route prefix information includes a SPI and a SI, the SPI is used to identify the SFP, the SI is used to identify a location of the service function forwarding node in the SFP, and the next hop information is used to indicate a next hop node of the service function forwarding node in the SFP; and sending, by the control node, the routing entry information to the service function forwarding node, where the routing entry information is used by the service function forwarding node to generate a forwarding table used to instruct the service function forwarding node to forward a packet.

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：US10680900B2

公开(公告)日：2020-06-09

申请号：US16407368

申请日：2019-05-09

Applicant: HUAWEI TECHNOLOGIES CO., LTD.

Inventor： Shunwan Zhuang ,  Yuanbin Yin ,  Baohua Song ,  Jianbin Xu

IPC: H04L12/24 ,  H04L29/06 ,  H04L12/715 ,  H04L12/717 ,  H04L12/66 ,  H04L12/751

Abstract: The present disclosure relates to the communications field, and discloses a BGP logical topology generation method, and a device. The method includes: obtaining, by a controller, node information of a first forwarder and BGP session information of the first forwarder, and obtaining node information of a second forwarder and BGP session information of the second forwarder; and generating, by the controller, a BGP logical topology between the first forwarder and the second forwarder according to the node information and the BGP session information of the first forwarder, and the node information and the BGP session information of the second forwarder that are obtained. The technical solution provided in the present invention can implement collection of a BGP logical topology between forwarders by the controller, which is favorable for the controller to manage forwarders running the BGP protocol.

公开(公告)号：US20200153745A1

公开(公告)日：2020-05-14

申请号：US16709287

申请日：2019-12-10

Applicant: Huawei Technologies Co., Ltd.

Inventor： Qiandeng Liang ,  Shunwan Zhuang ,  Jianjie You

IPC: H04L12/841 ,  H04L12/721

Abstract: A route processing method includes obtaining, by a first network device, a flow effective time parameter and a route related to the flow effective time parameter, processing, by the first network device in the specified time interval, service traffic corresponding to the route related to the flow effective time parameter, generating a route control message, where the route control message carries the flow effective time parameter and the route, and sending, by the first network device, the route control message to a second network device.

公开(公告)号：US20200014557A1

公开(公告)日：2020-01-09

申请号：US16570807

申请日：2019-09-13

Applicant: Huawei Technologies Co., Ltd.

Inventor： Haibo Wang ,  Shunwan Zhuang ,  Qiao Liu

IPC: H04L12/46 ,  H04L12/751 ,  H04L12/741 ,  H04L29/12 ,  H04L12/707 ,  H04L29/06

Abstract: The method includes the following steps: The second PE device sends, to the first PE device, a MAC route learned from the CE device. The first PE device generates a MAC forwarding entry based on the MAC route. The first PE device may forward, based on the MAC forwarding entry by using the CE device, a packet whose destination MAC address is the CE device or a MAC address of a terminal device accessing the CE device. An outbound interface identifier included in the MAC forwarding entry is an identifier of an interface connected to the CE device. According to the method in this application, load can be effectively shared between the second PE device and the first PE device, and system bandwidth resources can be properly used.

公开(公告)号：US20190140947A1

公开(公告)日：2019-05-09

申请号：US16236782

申请日：2018-12-31

Applicant: Huawei Technologies Co., Ltd.

Inventor： Shunwan Zhuang ,  Junlin Zhang ,  Nan Wu

IPC: H04L12/741

CPC classification number: H04L45/74 ,  H04L45/306 ,  H04L45/64

Abstract: A service function chaining (SFC)-based packet forwarding method, an apparatus, and a system, where the packet forwarding method includes receiving, by a first service function forwarding node, a packet forwarding rule from a control node, where the packet forwarding rule indicating a mapping relationship between a match item of traffic characteristic information of a packet and route prefix information, receiving, by the first service function forwarding node, a first packet, where a header of the first packet carries traffic characteristic information of the first packet, determining, by the first service function forwarding node based on the packet forwarding rule, target route prefix information corresponding to the traffic characteristic information of the first packet, determining, by the first service function forwarding node, target next-hop information based on the target route prefix information, and forwarding the first packet based on the target next-hop information.

公开(公告)号：US20180131622A1

公开(公告)日：2018-05-10

申请号：US15866080

申请日：2018-01-09

Applicant: Huawei Technologies Co., Ltd.

Inventor： Qiandeng Liang ,  Shunwan Zhuang ,  Jianjie You

IPC: H04L12/841

Abstract: A route processing method, a device, and a system, where the method includes obtaining, by a first network device, a flow effective time parameter and a route related to the flow effective time parameter, processing, by the first network device in the specified time interval, service traffic corresponding to the route related to the flow effective time parameter, generating a route control message, where the route control message carries the flow effective time parameter and the route, and sending, by the first network device, the route control message to a second network device. Therefore, limited-time effective information is automatically disseminated, a limited-time effective requirement for a traffic control policy is met, configuration workload is reduced, and maintenance difficulty is lowered.