公开(公告)号：US11799769B2

公开(公告)日：2023-10-24

申请号：US17720830

申请日：2022-04-14

Applicant: Huawei Technologies Co., Ltd.

Inventor： Jingrong Xie

IPC: G06F15/16 ,  H04L45/42 ,  H04L45/655 ,  H04L45/24 ,  H04L45/50

CPC classification number: H04L45/42 ,  H04L45/24 ,  H04L45/50 ,  H04L45/655

Abstract: A packet processing method includes a first network device receiving a first Bit Index Explicit Replication (BIER) packet including a first BIER header. When the first BIER packet is a packet sent to a second network device, and in response to determining that the second network device is an edge node device in a BIER communication network and does not support BIER packet forwarding, the first network device determines a target label used for a reverse path forwarding (RPF) check, updates the first BIER packet to obtain a second BIER packet, where the second BIER packet includes the target label but does not include the first BIER header, and sends the second BIER packet to the second network device.

公开(公告)号：US20230155933A1

公开(公告)日：2023-05-18

申请号：US18067232

申请日：2022-12-16

Applicant: Huawei Technologies Co., Ltd.

Inventor： Jing Hu ,  Wei Yi ,  Jingrong Xie ,  Ju Wang ,  Ting Hua

IPC: H04L45/00 ,  H04L45/745 ,  H04L12/46

CPC classification number: H04L45/566 ,  H04L12/4633 ,  H04L45/745

Abstract: A bit index explicit replication (BIER) operations, administration, and maintenance (OAM) detection method includes a bit forwarding ingress router (BFIR) obtaining a detection request packet based on a first BIER OAM packet, and sending the detection request packet to at least one bit forwarding egress router BFER. The detection request packet includes a first packet and a first packet header. The first packet is a packet obtained by encapsulating the first BIER OAM packet. The first packet header includes a bit string, and the bit string indicates the at least one bit forwarding egress router BFER that is to be measured.

公开(公告)号：US20230115034A1

公开(公告)日：2023-04-13

申请号：US18045175

申请日：2022-10-10

Applicant: HUAWEI TECHNOLOGIES CO., LTD.

Inventor： Jingrong Xie ,  Yang Xia ,  Xuesong Geng

IPC: H04L45/00 ,  H04L45/741 ,  H04L9/32 ,  H04L9/08

Abstract: This application provides a packet verification method, and the method includes: A first network device receives a BIER packet, where packet header information of the BIER packet includes a first keyed-hash message authentication code HMAC, and the first HMAC is used to verify whether the BIER packet is a valid BIER packet; determines a second HMAC based on a first key and first information in the packet header information, where the first information is used to indicate forwarding information of the BIER packet; determines whether the first HMAC is the same as the second HMAC; and when determining that the first HMAC is different from the second HMAC, determines that the BIER packet is an invalid BIER packet.

公开(公告)号：US11431615B2

公开(公告)日：2022-08-30

申请号：US17080404

申请日：2020-10-26

Applicant: Huawei Technologies Co., Ltd.

Inventor： Jingrong Xie ,  Gang Yan ,  Yang Xia ,  Shunwan Zhuang ,  Guoyi Chen

IPC: H04L12/28 ,  H04L45/16 ,  H04L12/18 ,  H04L45/74 ,  H04L47/70

Abstract: This application provides a multicast data packet processing method and a forwarding device. The method implemented by a first forwarding device includes: establishing a segment routing header SRH-based tunnel with a third forwarding device, wherein the SRH-based tunnel passes through a second forwarding device that does not support bit index explicit replication BIER; generating a first multicast data packet based on a multicast data packet from a multicast source and the SRH-based tunnel, wherein the first multicast data packet includes a first packet header, a second packet header, and the multicast data packet from the multicast source, the first packet header includes an SRH header, and a destination address included in the second packet header is an address of the second forwarding device; and sending the first multicast data packet to the second forwarding device through the SRH-based tunnel.

公开(公告)号：US20220272028A1

公开(公告)日：2022-08-25

申请号：US17743905

申请日：2022-05-13

Applicant: Huawei Technologies Co., Ltd.

Inventor： Jingrong Xie

IPC: H04L45/16 ,  H04L45/28 ,  H04L45/74

Abstract: A packet forwarding method includes that a first network device receives a multicast packet from a multicast source device and forwarded by a device group, where the device group includes a second network device and a third network device, and the multicast packet is forwarded to the first network device by one network device in the device group. The first network device determines, according to a reverse-path forwarding (RPF) entry, that the multicast packet is forwarded by the device group, where the RPF entry includes a first sub-entry instructing the first network device to forward the multicast packet sent by the second network device and a second sub-entry instructing the first network device to forward the multicast packet sent by the third network device. The first network device sends the multicast packet to a multicast destination device according to the RPF entry.

公开(公告)号：US20210409242A1

公开(公告)日：2021-12-30

申请号：US17468196

申请日：2021-09-07

Applicant: Huawei Technologies Co., Ltd.

Inventor： Jingrong Xie ,  Yisong Liu ,  Shunwan Zhuang ,  Naiwen Wei

IPC: H04L12/46 ,  H04L12/741 ,  H04L12/715

Abstract: A bit index explicit replication (BIER) packet sending method includes receiving, by a first node in a first BIER domain, a packet from a second node in a second BIER domain, where the packet carries an identifier of the second BIER domain, determining a BIER packet sending policy corresponding to the identifier of the second BIER domain based on the identifier of the second BIER domain and according to a preconfigured BIER packet sending policy, and encapsulating and sending a BIER packet according to the BIER packet sending policy.

公开(公告)号：US20210320929A1

公开(公告)日：2021-10-14

申请号：US17227720

申请日：2021-04-12

Applicant: Huawei Technologies Co., Ltd.

Inventor： Jingrong Xie ,  Yang Xia ,  Xuesong Geng

IPC: H04L29/06 ,  H04L12/741 ,  H04L12/751

Abstract: A packet detection method includes obtaining, by a first network device, a Bit Index Explicit Replication (BIER) packet, where the BIER packet includes trap information, and the trap information indicates whether the BIER packet is a valid BIER packet, determining, by the first network device, whether the trap information is valid, and determining, by the first network device, that the BIER packet is an invalid BIER packet when the first network device determines that the trap information is valid.

公开(公告)号：US20240297844A1

公开(公告)日：2024-09-05

申请号：US18663207

申请日：2024-05-14

Applicant: Huawei Technologies Co., Ltd.

Inventor： Jingrong Xie ,  Haibo Wang ,  Gang Yan

IPC: H04L45/00 ,  H04L45/741

CPC classification number: H04L45/34 ,  H04L45/741 ,  H04L2212/00

Abstract: A packet processing method includes a second device that sends a first packet to a first device, where the first packet includes a first segment routing header (SRH). After receiving the first packet, the first device determines whether the first packet includes a first segment identifier. When the first packet includes the first segment identifier, the first device deletes the first SRH, performs an encapsulation operation to generate a second packet, and forwards the second packet. That is, when a function or an indication corresponding to the first segment identifier is to perform the encapsulation operation, after receiving the first packet, the first device may delete the first SRH in the first packet based on an actual case, and perform the encapsulation operation to generate the second packet, where the second packet does not include the first SRH.

公开(公告)号：US11949585B2

公开(公告)日：2024-04-02

申请号：US17542505

申请日：2021-12-06

Applicant: HUAWEI TECHNOLOGIES CO., LTD.

Inventor： Jingrong Xie ,  Yang Xia ,  Yisong Liu

IPC: G06F15/173 ,  H04L45/00 ,  H04L45/16 ,  H04L45/24 ,  H04L45/745

CPC classification number: H04L45/16 ,  H04L45/24 ,  H04L45/34 ,  H04L45/745

Abstract: This application provides a BIER packet sending method. The method includes: receiving a BIER packet that is encapsulated using an IPv6 protocol and that is sent by a second forwarding device, where the BIER packet includes an IPv6 basic header and a BIER header, a destination address field in the IPv6 basic header is a first IPv6 address of the first forwarding device; determining, based on an identifier corresponding to a first IPv6 address in a forwarding table, to perform BIER forwarding on the BIER packet, where the identifier is used to indicate that the first IPv6 address is a destination address for BIER forwarding. In the technical solution provided in this application, a node may determine, based on the identifier of the first IPv6 address, to perform BIER forwarding on the BIER packet.

公开(公告)号：US20240098019A1

公开(公告)日：2024-03-21

申请号：US18519887

申请日：2023-11-27

Applicant: Huawei Technologies Co., Ltd.

Inventor： Jingrong Xie ,  Gang Yan

IPC: H04L45/00 ,  H04L45/302 ,  H04L45/50 ,  H04L45/76

CPC classification number: H04L45/34 ,  H04L45/302 ,  H04L45/50 ,  H04L45/76

Abstract: In a packet processing method, when a tenant has different QoS requirements for different traffic, indication information that meets a QoS requirement for the traffic can be autonomously selected, and an SRv6 packet that includes the indication information is obtained and sent to a PE device in a provider network, so that the PE device in the provider network can be aware of the QoS requirement of the tenant for the traffic, to provide, for the traffic, a service that meets the QoS requirement.