公开(公告)号：US20220337521A1

公开(公告)日：2022-10-20

申请号：US17849113

申请日：2022-06-24

Applicant: Huawei Technologies Co., Ltd.

Inventor： Jingrong Xie ,  Zhenbin Li ,  Gang Yan

IPC: H04L45/76 ,  H04L45/74 ,  H04L45/24 ,  H04L12/46

Abstract: This application provides a packet sending method. The method includes: receiving, by a first network device, a data packet, and encapsulating the data packet to obtain a first packet, where the first packet includes an IPv6 header, a bit index explicit replication BIER header, and the data packet, and some bits of a source IPv6 address field in the IPv6 header include identification information of a first tenant; and sending, by the first network device, the first packet to a second network device, where the identification information of the first tenant is used by the second network device to determine to send the data packet to an interface, corresponding to the first tenant, of the second network device.

公开(公告)号：US20220278925A1

公开(公告)日：2022-09-01

申请号：US17746078

申请日：2022-05-17

Applicant: Huawei Technologies Co., Ltd.

Inventor： Tianran Zhou ,  Ling Xu ,  Min Liu ,  Zhenbin Li

IPC: H04L45/42 ,  H04L45/24 ,  H04L45/00

Abstract: A method for delivering operations, administration and maintenance (OAM) configuration information includes obtaining, by a control node in a communication network and from at least two of a plurality of first nodes in the communication network, advertisement packets, wherein each of the advertisement packets comprises indication information indicating a corresponding path detection mode supported by a sender of each of the advertisement packets; determining, by the control node based on a path detection mode to be used and the advertisement packets, a detection path; and delivering OAM configuration information to a head node in the detection path and a tail node in the detection path.

公开(公告)号：US20220109624A1

公开(公告)日：2022-04-07

申请号：US17552210

申请日：2021-12-15

Applicant: Huawei Technologies Co., Ltd.

Inventor： Cheng Li ,  Zhenbin Li

IPC: H04L45/00 ,  H04L45/74 ,  H04L45/021

Abstract: This application discloses a packet processing method and apparatus, and a computer storage medium, and belongs to the field of segment routing technologies. In the method, the network node receives a packet carrying an SRH, where the SRH includes one or more TLV fields and a TLV processing attribute, the TLV processing attribute indicates whether the network node needs to process the TLV fields included in the SRH, and the network node determines, based on the TLV processing attribute, processing of the TLV fields included in the SRH. In this way, any segment endpoint node on a segment routing network may determine the TLV processing attribute by using the SRH, so as to determine whether the TLV fields included in the SRH need to be processed.

公开(公告)号：US11233732B2

公开(公告)日：2022-01-25

申请号：US16025258

申请日：2018-07-02

Applicant: Huawei Technologies Co., Ltd.

Inventor： Jia Che ,  Shunwan Zhuang ,  Zhenbin Li ,  Shuanglong Chen

IPC: G06F15/16 ,  H04L12/723 ,  H04L12/717 ,  H04L12/46

Abstract: A label management method, a data stream processing method, and a device, where the label management method includes allocating, by a controller, a source label to a data stream, sending, by the controller, a first Border Gateway Protocol (BGP) update packet to an ingress network device on a label switching path (LSP) of the data stream, and sending a second BGP update packet to an egress network device on the LSP of the data stream, where the first BGP update packet includes a stream identifier of the data stream and the source label, and the second BGP update packet includes a mapping relationship between the source label and a source object of the data stream. Hence, configuration, management, and maintenance can be simplified.

公开(公告)号：US20210409304A1

公开(公告)日：2021-12-30

申请号：US17471571

申请日：2021-09-10

Applicant: Huawei Technologies Co., Ltd.

Inventor： Shunwan Zhuang ,  Haibo Wang ,  Yunan Gu ,  Gang Yan ,  Zhenbin Li

IPC: H04L12/755 ,  H04L12/715 ,  H04L12/705 ,  H04L12/707

Abstract: A BGP route identification method and apparatus are provided. A network device obtains a BGP route. The BGP route includes an autonomous system path attribute AS_PATH attribute, the AS_PATH attribute includes a first autonomous system number AS number, an AS number corresponding to an autonomous system that the network device is located in or manages is a second AS number, and the first AS number is equal to the second AS number. The network device determines, based on the first AS number and the second AS number, whether the BGP route is abnormal.

公开(公告)号：US20210194999A1

公开(公告)日：2021-06-24

申请号：US17194311

申请日：2021-03-07

Applicant: HUAWEI TECHNOLOGIES CO.,LTD.

Inventor： Tao Du ,  Yunfei Gong ,  Zhenbin Li ,  Jiaqing Zhang ,  Xingnuo Li ,  Yunan Gu ,  Gongyu Lu

IPC: H04L29/06 ,  H04L12/751 ,  H04L29/08 ,  H04L12/703

Abstract: This application discloses a packet sending method, a network device, and a computer storage medium, and pertains to the field of communications technologies. The method includes: generating, by a network device, a first packet, where the first packet includes a field used to indicate a first protocol, the first packet further includes a field carrying data of the first protocol, and a protocol followed by the first packet is different from the first protocol; and sending, by the network device, the first packet to a peer network device. Because the protocol followed by the first packet is different from the first protocol, regardless of which protocol the first protocol is specifically, the data of the first protocol may be exchanged by using the first packet. In other words, this application provides a general protocol, to transmit the data of the first protocol. This improves packet sending flexibility.

公开(公告)号：US20210135986A1

公开(公告)日：2021-05-06

申请号：US17147208

申请日：2021-01-12

Applicant: Huawei Technologies Co., Ltd.

Inventor： Haoyu Song ,  Zhenbin Li ,  Tianran Zhou ,  James N. Guichard ,  Stewart Frederick Bryant ,  Andrew G. Malis

IPC: H04L12/723 ,  H04L12/761 ,  H04L29/06

Abstract: Described herein are methods and devices (e.g., routers) that add in-network services to a multiprotocol label switching (MPLS) network. A method can include a router of the MPLS network receiving a packet and modifying the packet by adding one or more MPLS extension headers, adding a header of the extension header(s), and adding an indication within an MPLS label stack that one or more MPLS extension headers have been added to the packet. The method can also include the router forwarding the packet as modified to another router of the MPLS network. In certain embodiments, an extension header label (EHL) within a label value field of a label stack entry indicates that one or more MPLS extension headers have been added to the packet. In other embodiments, a forward equivalent class (FEC) indicates that one or more MPLS extension headers follow the MPLS label stack.

公开(公告)号：US20210083902A1

公开(公告)日：2021-03-18

申请号：US17106931

申请日：2020-11-30

Applicant: Huawei Technologies Co., Ltd.

Inventor： Shunwan Zhuang ,  Haibo Wang ,  Penghui Mi ,  Yunan Gu ,  Gang Yan ,  Zhenbin Li

IPC: H04L12/46 ,  H04L12/715 ,  H04L12/723 ,  H04L12/721 ,  H04L12/751

Abstract: In a method for managing a VPN, a routing device establishes a BMP session with a BMP server. The routing device allocates a VPN label associated with a VPN instance, wherein the VPN instance is used for communication between the routing device and another routing device. Then, the routing device sends, to the BMP server, a BMP message that carries the VPN label. Because the routing device sends the VPN label through the BMP message, the routing device does not need to establish a BGP peer relationship with the BMP server to send the VPN label.

公开(公告)号：US10686698B2

公开(公告)日：2020-06-16

申请号：US14981520

申请日：2015-12-28

Applicant: Huawei Technologies Co., Ltd.

Inventor： Junlin Zhang ,  Zhenbin Li

IPC: H04L29/12 ,  H04L12/723 ,  H04L12/66 ,  H04L12/64 ,  H04L12/741 ,  H04L12/931 ,  H04L29/08

Abstract: The present application discloses a packet forwarding method, including: determining, by an Ingress PE in an Ethernet virtual private network instance (EVI), that a state of the EVI on a first Egress PE is Active, where an Ethernet virtual private network (EVPN) corresponding to the EVI includes a first CE; determining, by the Ingress PE, that a state of the EVI on a second Egress PE is Inactive; skipping, by the Ingress PE, forwarding a broadcast, unknown unicast, and multicast BUM packet to the second Egress PE, where the BUM packet is from the first CE; and forwarding, by the Ingress PE, the BUM packet to the first Egress PE. Repeated BUM traffic that is transmitted in a bearer network and is not finally sent to a remote site is reduced; therefore, a waste of bandwidth in the bearer network is reduced.

公开(公告)号：US20200153834A1

公开(公告)日：2020-05-14

申请号：US16739551

申请日：2020-01-10

Applicant: Huawei Technologies Co., Ltd.

Inventor： Shunwan Zhuang ,  Peng Zhou ,  Zhenbin Li ,  Yuanbin Yin ,  Jianbin Xu

IPC: H04L29/06 ,  H04L12/751

Abstract: A method, an apparatus, and a system for collecting an access control list (ACL), where a second network device receives a first link-state advertisement (LSA) packet flooded by a first network device, where the first LSA packet includes a first network device identifier and first ACL information, and the first network device and the second network device belong to a same Interior Gateway Protocol (IGP) area, and sends an extended first Border Gateway Protocol-Link State (BGP-LS) packet to a controller, where the extended first BGP-LS packet includes the first network device identifier and the first ACL information such that the controller can collect ACL information of the first network device and manage the ACL information of the first network device.