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公开(公告)号：EP4459930A1
公开(公告)日：2024-11-06
申请号：EP23762942.3
申请日：2023-03-02
发明人： ZHANG, Yaokun , YUAN, Ruyue , XIE, Jingrong
IPC分类号： H04L12/18
摘要： This application provides a method and an apparatus for discovering a root node, to implement dual-root protection in a process of transmitting a multicast data packet over an automatic multicast tunneling (automatic multicast tunneling, AMT) network, so as to avoid transmission interruption and improve network stability. In the method, a first network device receives a first packet from a multicast source, where the first packet is used to discover a root node; and the first network device sends a response packet for the first packet to the multicast source, where the response packet for the first packet includes address information of the root node, and the root node includes the first network device and a second network device.
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公开(公告)号：EP4387189A1
公开(公告)日：2024-06-19
申请号：EP22862769.1
申请日：2022-06-01
发明人： XIE, Jingrong , DUAN, Fanghong , ZHANG, Feng , DING, Zhaoqiu
IPC分类号： H04L45/16
CPC分类号： H04L69/164 , H04L69/167 , H04L45/16 , H04L69/06
摘要： This application provides a packet forwarding method and apparatus, a device, and a storage medium, and pertains to the field of communication technologies. In embodiments of this application, in a scenario in which a BIER domain includes a host and a routing device that has a neighbor relationship with the host, and the host duplicates a packet and forwards the packet to another host via the routing device, when 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, to avoid 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.
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公开(公告)号：EP4250675A1
公开(公告)日：2023-09-27
申请号：EP21909214.5
申请日：2021-12-14
发明人： XIE, Jingrong , DUAN, Fanghong , LIU, Shuying
IPC分类号： H04L47/125 , H04L47/12
摘要： This application provides a load sharing method, a root node device, a leaf node device, and a system. The method includes: A first root node device receives a message sent by the leaf node device, where the message includes a first identifier and configuration information. The first identifier indicates the leaf node device. The configuration information indicates a configuration mode, requested by the leaf node device, of load sharing from a root node device group to the leaf node device. The root node device group includes the first root node device. The first root node device determines, based on the first identifier and the configuration information, a configuration result of the load sharing from the first root node device to the leaf node device. In response to the configuration result being a first result, the first root node device determines that the first root node device is a primary root of the leaf node device. Alternatively, in response to the configuration result being a second result, the first root node device determines that the first root node device is a secondary root of the leaf node device. This method can implement load sharing of multicast traffic.
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4.发明公开
公开(公告)号：EP4210247A1
公开(公告)日：2023-07-12
申请号：EP21874404.3
申请日：2021-09-26
发明人： PENG, Shuping , XIA, Yang , XIE, Jingrong
IPC分类号： H04L20060101
摘要： This application discloses a packet header information obtaining method, a packet generation method, a device, and a storage medium, and pertains to the field of communications technologies. The method includes: obtaining, by a communications device, a first packet, where the first packet includes a plurality of extension packet headers; and obtaining an extension header self-describing option from the first packet, where the extension header self-describing option is used to indicate information about the plurality of extension packet headers. Therefore, the communications device obtains, based on the extension header self-describing option in the first packet, a first extension packet header included in the plurality of extension packet headers. In this application, packet header information of the extension packet header in the first packet can be obtained by using the extension header self-describing option, and the first extension packet header that needs to be parsed can be directly located from the first packet by using the obtained packet header information. Therefore, not only efficiency of obtaining the packet header information is relatively high, but also hardware processing overheads are reduced. This is applicable to a service case in which a plurality of extension packet headers coexist in the first packet.
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公开(公告)号：EP4160997A1
公开(公告)日：2023-04-05
申请号：EP21826225.1
申请日：2021-06-17
发明人： HU, Jing , YI, Wei , XIE, Jingrong , WANG, Ju , HUA, Ting
IPC分类号： H04L12/26
摘要： This application provides a BIER OAM detection method, a device, and a system. The method includes: A bit forwarding ingress router BFIR obtains a detection request packet based on a first BIER OAM packet, and sends the detection request packet to at least one bit forwarding egress router BFER, where 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. According to the technical solutions provided in this application, OAM detection can be implemented in a BIER scenario.
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公开(公告)号：EP4152704A1
公开(公告)日：2023-03-22
申请号：EP21818204.6
申请日：2021-03-22
发明人： LIU, Shuying , XIE, Jingrong , ZHANG, Feng , GU, Rui
IPC分类号： H04L12/761
摘要： This application provides a BIER multicast traffic statistics collection method, a device, and a system. The method includes: A first network device obtains a first BIER packet. The first network device performs traffic statistics collection on the first BIER packet based on multicast flow information, to obtain a traffic statistics collection result of the first BIER packet, where the multicast flow information is used to identify a multicast flow to which the first BIER packet belongs. The first network device sends the multicast flow information and the traffic statistics collection result of the first BIER packet to a controller. According to the technical solutions provided in this application, statistics about BIER multicast traffic can be collected.
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7.发明公开
公开(公告)号：EP4044533A1
公开(公告)日：2022-08-17
申请号：EP20885453.9
申请日：2020-09-25
发明人： TIAN, Taixu , XIA, Yang , XIE, Jingrong , HAN, Bing
IPC分类号： H04L12/741
摘要： This application discloses a method, an apparatus, and a device for load balancing in a BIER network. The method includes: A network device obtains a BIER packet, and determines, based on an identifier in the BIER packet, a target next-hop node that reaches a destination address of the first BIER packet from a plurality of next-hop nodes of the network device. Then, the network device generates a target forwarding table based on the target next-hop node, and forwards the first BIER packet based on the target forwarding table. In this application, a control plane does not perform load balancing on a BIER packet in a manner of delivering a large quantity of load balancing tables to a forwarding plane, but the forwarding plane of the network device generates the target forwarding table to perform load balancing on the BIER packet. This can prevent the control plane from delivering the large quantity of load balancing tables and avoid a packet loss or packet addition problem caused when a link failure occurs, thereby improving a load balancing effect.
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公开(公告)号：EP4020908A1
公开(公告)日：2022-06-29
申请号：EP20862508.7
申请日：2020-07-27
发明人： XIE, Jingrong , XIA, Yang , YAN, Gang , HU, Zhibo
IPC分类号： H04L12/721
摘要： An IPv6 packet processing method and apparatus are provided. In this method, a first routing device obtains an IPv6 packet, and sends the IPv6 packet to a next-hop routing device. The IPv6 packet includes an IPv6 extension header, the IPv6 extension header includes preceding general indication information, the preceding general indication information includes first information, and the first information is used to indicate to process the IPv6 packet only on a data plane of a routing device and not to send the IPv6 packet to a CPU. In this way, after receiving the IPv6 packet, a second routing device processes the IPv6 packet on the data plane, thereby improving processing efficiency of the IPv6 packet.
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公开(公告)号：EP3863237A1
公开(公告)日：2021-08-11
申请号：EP19879381.2
申请日：2019-12-25
发明人： XIE, Jingrong , XIA, Yang
IPC分类号： H04L12/70
摘要： This application provides a packet forwarding method, a packet sending apparatus, and a packet receiving apparatus. The method includes: A first node configures a first identifier of a first VPN and a first IPv6 address on a control plane, where the first identifier corresponds to the first IPv6 address. The first node sends a first indication message to a second node, where the first indication message carries the first identifier and the first IPv6 address. The second node first determines, based on locally configured information about the first VPN and the first identifier in the first indication message, a second identifier that is of the second node and that satisfies a preset correspondence with the first identifier, and then establishes a correspondence between the first IPv6 address and the second identifier. The first node encapsulates, on a forwarding plane based on the first IPv6 address, a multicast data packet belonging to the first VPN, to obtain a to-be-forwarded BIER packet, and sends the to-be-forwarded BIER packet. In this way, packet encapsulation performance and packet forwarding performance can be improved.
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公开(公告)号：EP4325801A1
公开(公告)日：2024-02-21
申请号：EP23191266.8
申请日：2023-08-14
发明人： PANG, Donglei , SHENG, Cheng , WANG, Haibo , DUAN, Fanghong , HU, Zhibo , CHEN, Dapeng , XIE, Jingrong
摘要： 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. Configuration and deployment are simple, coupling to an underlay network is quite weak, and impact on the underlay network is little. 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.
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