公开(公告)号：US20240022508A1

公开(公告)日：2024-01-18

申请号：US18476354

申请日：2023-09-28

Applicant: HUAWEI TECHNOLOGIES CO., LTD.

Inventor： Fanghong DUAN ,  Jingrong XIE

IPC: H04L45/00 ,  H04L45/748 ,  H04L45/02

CPC classification number: H04L45/566 ,  H04L45/748 ,  H04L45/02

Abstract: The present disclosure provides a bit index explicit replication over internet protocol version 6 (BIERv6) packet processing method, and the method is applied to an Ethernet virtual private network (EVPN). The method includes: A first network device receives a BIERv6 packet sent by a second network device. The BIERv6 packet includes an internet protocol version 6 (IPv6) header and a broadcast, unknown unicast, and multicast (BUM) packet, a source address (SA) of the IPv6 header is a IPv6 address, the IPv6 address identifies the second network device, the first network device is an egress device in a BIER domain, and the second network device is an ingress device in the BIER domain. The first network device determines, based on the IPv6 address, a EVPN instance to which the BUM packet belongs. The first network device forwards the BUM packet based on the EVPN instance. The foregoing technical solutions can reduce waste of public network link bandwidth, and improve BUM packet replication efficiency.

公开(公告)号：US20230155921A1

公开(公告)日：2023-05-18

申请号：US18099669

申请日：2023-01-20

Applicant: HUAWEI TECHNOLOGIES CO., LTD.

Inventor： Shuying LIU ,  Huizhi WEN ,  Zuqing LI ,  Fanghong DUAN

IPC: H04L45/16 ,  H04L45/00 ,  H04L47/32

CPC classification number: H04L45/16 ,  H04L45/22 ,  H04L47/32

Abstract: This application describes a multicast packet sending method, apparatus, and system. The method includes a first multicast root node and a second multicast root node belonging to a same VRRP group. The first multicast root node receives a first multicast packet from a specified multicast source, and the second multicast root node receives a second multicast packet from the same specified multicast source, where the first multicast packet and the second multicast packet include same multicast data. The first multicast root node sends the first multicast packet to a first node based on the first multicast root node being a master root node. The second multicast root node discards the second multicast packet based on the second multicast root node being a backup root node. The method reduces waste of a network bandwidth resource.

公开(公告)号：US20240064099A1

公开(公告)日：2024-02-22

申请号：US18449738

申请日：2023-08-15

Applicant: HUAWEI TECHNOLOGIES CO., LTD.

Inventor： Donglei PANG ,  Cheng SHENG ,  Haibo WANG ,  Fanghong DUAN ,  Zhibo HU ,  Dapeng CHEN ,  Jingrong XIE

IPC: H04L45/64 ,  H04L45/00 ,  H04L12/18 ,  H04L45/76

CPC classification number: H04L45/64 ,  H04L45/54 ,  H04L12/185 ,  H04L45/76

Abstract: This application discloses a communication method and a related apparatus, and relates to the field of communication technologies. The method is applied to an SD-WAN overlay network. A CPE autonomously generates an SD-WAN overlay routing table, so that communication reliability and flexibility are improved. An RR specifies an overlay multicast RPF route to the CPE to implement SD-WAN overlay multicast communication, and the CPE does not need to perform path computation autonomously, so that a computing power requirement of the CPE is reduced. An identifier of the CPE and an identifier of a site are carried in a multicast join message to implement the SD-WAN overlay multicast communication. A standard IP header is carried in a multicast service packet to implement the SD-WAN overlay multicast communication, so that generalization, applicability, and compatibility are improved.

公开(公告)号：US20240275722A1

公开(公告)日：2024-08-15

申请号：US18592595

申请日：2024-03-01

Applicant: HUAWEI TECHNOLOGIES CO., LTD.

Inventor： Jingrong XIE ,  Fanghong DUAN ,  Feng ZHANG ,  Zhaoqiu DING

IPC: H04L45/00 ,  H04L45/02 ,  H04L45/74

CPC classification number: H04L45/566 ,  H04L45/04 ,  H04L45/74

Abstract: A BIER domain includes a host and a routing device that has a neighbor relationship with the host. The host duplicates a packet and forwards the packet to another host via the routing device. After receiving the packet including a BIER option, the routing device pops up, from the packet, an IPV6 extension header including the BIER option, and then sends the packet to the host. This avoids a case in which the packet received by the host includes the IPV6 extension header including the BIER option, thereby reducing a difficulty of processing the packet by the host and reducing overheads of processing the packet by the host.

公开(公告)号：US20230155906A1

公开(公告)日：2023-05-18

申请号：US18156996

申请日：2023-01-19

Applicant: Huawei Technologies Co., Ltd.

Inventor： Jingrong XIE ,  Xuesong GENG ,  Fanghong DUAN

IPC: H04L43/0811 ,  H04L45/00 ,  H04L61/2592

CPC classification number: H04L43/0811 ,  H04L45/34 ,  H04L61/2592

Abstract: This application provides a P2MP tree connectivity detection method, a device, and a system. The method is applied to SR domain. The SR domain includes a P2MP tree. The P2MP tree includes a first node. The first node is a root node or an intermediate replication node of the P2MP tree. The method includes: The first node determines a first next-hop node of the first node based on replication branch information; and the first node sends a first request message to the first next-hop node. The first request message includes a segment identifier SID of the first next-hop node. The first request message includes a first identifier. The first identifier indicates that the first request message is for connectivity detection.