公开(公告)号：US20230179520A1

公开(公告)日：2023-06-08

申请号：US18161923

申请日：2023-01-31

Applicant: HUAWEI TECHNOLOGIES CO., LTD.

Inventor： Wenyan Li ,  Haibo Wang ,  Lili Wang

IPC: H04L45/00

CPC classification number: H04L45/72

Abstract: A message generation method, a message processing method, a message generation apparatus, and a message processing apparatus are provided. The message generation method includes: obtaining, by a first device, a segment identifier list SID list, where the SID list includes a plurality of segment identifiers SIDs, the first N bits of the plurality of SIDs are the same, and N is a positive integer; generating, by the first device, a first message based on the SID list, where the first message includes a first part and a second part, the first part includes the first N bits of the plurality of SIDs, and the second part includes bit N+1 to bit 128 of each of the plurality of SIDs; and sending, by the first device, the first message to a second device.

公开(公告)号：US20230116548A1

公开(公告)日：2023-04-13

申请号：US18066625

申请日：2022-12-15

Applicant: Huawei Technologies Co., Ltd.

Inventor： Weiguo Hao ,  Haibo Wang ,  Xingjian He ,  Gang Yan ,  Liangchuan Gao

IPC: H04L45/28 ,  H04L41/12

Abstract: A first network device obtains first information. The first information indicates that a first link is faulty, and the first link is a link between any two network devices in a network system to which the first network device belongs. The first network device sends the first information to a second network device by using BGP, for example, sends a link fault message to the second network device by using BGP. The link fault message carries the first information. The second network device is a neighbor device of the first network device. The first network device determines an unreachable route in a routing table of the first network device based on the first information and a topology of the network system. A path corresponding to the unreachable route includes the first link. The first network device marks the unreachable route as invalid.

公开(公告)号：US20230006917A1

公开(公告)日：2023-01-05

申请号：US17942827

申请日：2022-09-12

Applicant: Huawei Technologies Co., Ltd.

Inventor： Haibo Wang ,  Shunwan Zhuang ,  Cheng Sheng

IPC: H04L45/00

Abstract: A route determining method, apparatus, and a network device are disclosed. The method includes a first forwarding node receives routing information from a second forwarding node, and then sends a packet to a destination node based on the routing information. The routing information includes a node identifier of the destination node and at least one piece of indication information that is in a one-to-one correspondence with at least one third forwarding node, and the second forwarding node belongs to the at least one third forwarding node. The packet includes the at least one piece of indication information, and the at least one piece of indication information indicates to forward the packet along the at least one third forwarding node.

公开(公告)号：US20220337508A1

公开(公告)日：2022-10-20

申请号：US17852700

申请日：2022-06-29

Applicant: Huawei Technologies Co., Ltd.

Inventor： Haibo Wang ,  Shunwan Zhuang ,  Junli Jia ,  Hong Wu ,  Shuqiang Wang

IPC: H04L45/02

Abstract: A path verification method includes a network device obtains path information of a packet forwarding path passing through a third autonomous system (AS), a second AS, and a first AS in sequence, and the third AS, the second AS, and the first AS are sequentially adjacent. The network device determines a first business relationship of a first AS pair and a second business relationship of a second AS pair, where the first AS pair includes the first AS and the second AS that are sequentially arranged, and the second AS pair includes the second AS and the third AS that are sequentially arranged. The network device determines, based on the first business relationship and the second business relationship, whether the packet forwarding path is valid.

公开(公告)号：US11463345B2

公开(公告)日：2022-10-04

申请号：US17146338

申请日：2021-01-11

Applicant: HUAWEI TECHNOLOGIES CO., LTD.

Inventor： Haijun Xu ,  Shunwan Zhuang ,  Haibo Wang

IPC: H04L1/00 ,  H04L45/02 ,  H04L12/66 ,  H04L45/18 ,  H04L65/1069 ,  H04L45/28 ,  H04L45/128 ,  H04L65/1101

Abstract: A method includes: establishing, by a first network device, a first BMP session with a second network device, and establishing a second BMP session with a third network device; receiving a first BGP route set sent by the second network device, where the first BGP route set includes a BGP route sent by the second network device to the third network device; receiving a second BGP route set sent by the third network device, where the second BGP route set includes the BGP route received by the third network device from the second network device; and when detecting that the second BGP route set includes a first BGP route but the first BGP route set does not include the first BGP route, determining the first BGP route as an unavailable route.

公开(公告)号：US20220263803A1

公开(公告)日：2022-08-18

申请号：US17732588

申请日：2022-04-29

Applicant: Huawei Technologies Co., Ltd.

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

IPC: H04L9/40

Abstract: An information reporting method includes after receiving a Border Gateway Protocol (BGP) flow specification (FS) rule, a network node obtains a status of implementing the BGP FS rule on the network node, where the status indicates that either the BGP FS rule is implemented on the network node or the BGP FS rule is not implemented on the network node. Then the network node sends the status to a server.

公开(公告)号：US20220173997A1

公开(公告)日：2022-06-02

申请号：US17671695

申请日：2022-02-15

Applicant: Huawei Technologies Co., Ltd.

Inventor： Haibo Wang ,  Shunwan Zhuang ,  Gang Yan

IPC: H04L45/00 ,  H04L45/02 ,  H04L9/40

Abstract: A route learning method includes a network device obtaining Border Gateway Protocol (BGP) routing information from a BGP peer. When a target region to which the BGP peer belongs is the same as a target region to which a BGP route belongs, the network device learns the BGP routing information. A packet forwarding method includes a network device receiving a packet through a network interface. When a target region to which the network interface belongs is the same as a target region to which the packet belongs, the network device forwards the packet.

公开(公告)号：US20220124033A1

公开(公告)日：2022-04-21

申请号：US17502466

申请日：2021-10-15

Applicant: Huawei Technologies Co., Ltd.

Inventor： Xingjian He ,  Haibo Wang

IPC: H04L12/741

Abstract: A method for controlling traffic forwarding includes: A control device receives a first packet sent by a first network device, where the first packet includes a first service packet. A destination of the first packet is the control device, a destination of the first service packet is first user equipment, and the first user equipment is connected to a network by using a second network device. Then, the control device determines a first forwarding policy based on the first packet and a first routing entry, where the first forwarding policy is used to guide forwarding of a first data flow to which the first service packet belongs. In addition, the control device sends the first forwarding policy to the first network device.

公开(公告)号：US20210258256A1

公开(公告)日：2021-08-19

申请号：US17306740

申请日：2021-05-03

Applicant: HUAWEI TECHNOLOGIES CO.,LTD.

Inventor： Haibo Wang ,  Shunwan Zhuang

IPC: H04L12/741 ,  H04L9/08 ,  H04L12/751 ,  H04L12/715 ,  H04L12/725

Abstract: This application discloses a route processing method and a network device. The network device obtains a route prefix and autonomous system information associated with the obtained route prefix, where the associated autonomous system information includes to-be-verified autonomous system information. The network device verifies whether there is a match item in a route origin information base, where the match item includes the obtained route prefix and the to-be-verified autonomous system information; and determines, based on a verification result, whether to send the obtained route prefix. The network device verifies the autonomous system information associated with the to-be-sent route prefix before sending the route prefix. This reduces a possibility that the network device sends route information carrying incorrect autonomous system information, and reduces a possibility of causing an abnormal network flow direction.

公开(公告)号：US20200014623A1

公开(公告)日：2020-01-09

申请号：US16570795

申请日：2019-09-13

Applicant: Huawei Technologies Co., Ltd.

Inventor： Haibo Wang ,  Shunwan Zhuang ,  Qiao Liu

IPC: H04L12/721 ,  H04L12/46 ,  H04L12/66

Abstract: A method includes a first provider edge (PE) device sending, to a second PE device, a media access control (MAC) route learned from a customer edge (CE) device and a virtual local area network (VLAN) identifier, wherein the second PE device generates a MAC forwarding entry based on the MAC route and the VLAN identifier, where the MAC forwarding entry is used to directly forward, 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.