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公开(公告)号：US20230370374A1
公开(公告)日：2023-11-16
申请号：US18196866
申请日：2023-05-12
Applicant: Huawei Technologies Co., Ltd.
Inventor： Donglei Pang , Cheng Sheng , Haibo Wang , Fanghong Duan , Gang Yan , Xuesong Geng
IPC: H04L45/741 , H04L12/28 , H04L12/46 , H04L45/02
CPC classification number: H04L45/741 , H04L12/2854 , H04L12/4633 , H04L45/04
Abstract: A multicast communication method is applied to a software-defined wide area network SD-WAN. In the multicast communication method, a bit index explicit replication (Bit Index Explicit Replication, BIER) capability is deployed on a site device in the SD-WAN, a site device through which a multicast packet needs to pass is indicated by a bit index explicit replication IPv6 encapsulation (Bit Index Explicit Replication IPv6 encapsulation, BIERv6) header in the multicast packet, and a multicast distribution tree does not need to be constructed. In addition, the multicast packet is forwarded through an SD-WAN tunnel between site devices, and an intermediate node does not need to sense a multicast service. In this way, a network device has a small quantity of multicast entries and the multicast entries are converged quickly, ensuring normal running of the multicast service.
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Patent Agency Ranking
公开(公告)号：US20240064094A1
公开(公告)日：2024-02-22
申请号：US18496483
申请日：2023-10-27
Applicant: Huawei Technologies Co., Ltd.
Inventor： Donglei Pang , Haibo Wang
Abstract: Embodiments of this application disclose a route information processing method and an apparatus, which may be used for a network device that supports a BGP protocol, to resolve a defect in an existing BGP SPF protocol. The network device may be a forwarding device, for example, a router or a switch. For example, in embodiments of this application, a priority attribute is introduced to route information that carries NLRI through an extended BGP protocol, to indicate a priority of the route information. This influences a BGP NLRI selection process performed by the network device. For example, embodiments of this application provide a network fault processing method, to help resolve a problem that a network device cannot calculate a packet forwarding path in some scenarios in an existing protocol.
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公开(公告)号：US20230370293A1
公开(公告)日：2023-11-16
申请号：US18316734
申请日：2023-05-12
Applicant: Huawei Technologies Co., Ltd.
Inventor： Donglei Pang , Cheng Sheng , Haibo Wang , Fanghong Duan , Gang Yan , Shunwan Zhuang
CPC classification number: H04L12/18 , H04L45/16 , H04L45/74 , H04L12/4633
Abstract: A multicast communication method is applied to a software-defined wide area network SD-WAN. In the multicast communication method, a bit index explicit replication (Bit Index Explicit Replication, BIER) capability is deployed on site devices in the SD-WAN, a BIER header in a multicast packet indicates a site device that a multicast packet needs to pass through, and no multicast distribution tree need to be constructed. In addition, the multicast packet is forwarded through an SD-WAN tunnel between site devices, and an intermediate node does not need to sense a multicast service, to reduce a quantity of multicast table entries on a network device and accelerate convergence of the multicast table entries, so that normal running of the multicast service is ensured.
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公开(公告)号：US20250097139A1
公开(公告)日：2025-03-20
申请号：US18965618
申请日：2024-12-02
Applicant: Huawei Technologies Co., Ltd.
Inventor： Shunwan Zhuang , Haibo Wang , Shuanglong Chen , Hong Wu , Jie Dong , Donglei Pang
Abstract: This application provides a packet sending method, a network device, and a system. The method includes: A first network device receives an advertisement message sent by a second network device, where the advertisement message includes segment routing policy SR policy information and traffic feature information, and the SR policy information includes a segment identifier list SID list. The first network device establishes a correspondence between the traffic feature information and the SID list according to the advertisement message, where the correspondence is used to guide forwarding of a packet including the traffic feature information.
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公开(公告)号：US12224926B2
公开(公告)日：2025-02-11
申请号：US18463727
申请日：2023-09-08
Applicant: Huawei Technologies Co., Ltd.
Inventor： Donglei Pang , Haibo Wang , Gang Yan , Xingjian He
IPC: G06F15/173 , H04L45/00 , H04L45/02 , H04L45/036
Abstract: In a route processing method, a first network device obtains one or more routes having a same destination address, and including a first route. Slice information corresponding to the one or more ports is determined based on one or more ports that are on the first network device and that receive the one or more routes. The first network device sends an updated first route to a second network device, where the updated first route carries the slice information and the destination address. After a route is received, corresponding slice information is determined based on a port that receives the route, so that slice information supported by a path from a network device to a route starting device is determined. The determined slice information is carried when the route is forwarded, so that a network device on a route advertisement path can obtain the slice information supported by the entire path.
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公开(公告)号：US20230421480A1
公开(公告)日：2023-12-28
申请号：US18463727
申请日：2023-09-08
Applicant: Huawei Technologies Co., Ltd.
Inventor： Donglei Pang , Haibo Wang , Gang Yan , Xingjian He
IPC: H04L45/036 , H04L45/00 , H04L45/02
CPC classification number: H04L45/036 , H04L45/38 , H04L45/04
Abstract: In a route processing method, a first network device obtains one or more routes having a same destination address, and including a first route. Slice information corresponding to the one or more ports is determined based on one or more ports that are on the first network device and that receive the one or more routes. The first network device sends an updated first route to a second network device, where the updated first route carries the slice information and the destination address. After a route is received, corresponding slice information is determined based on a port that receives the route, so that slice information supported by a path from a network device to a route starting device is determined. The determined slice information is carried when the route is forwarded, so that a network device on a route advertisement path can obtain the slice information supported by the entire path.
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