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公开(公告)号：EP4207699A1
公开(公告)日：2023-07-05
申请号：EP21868632.7
申请日：2021-09-15
发明人： MA, Linlin , XU, Guoqi , HU, Zhibo , ZHANG, Ka
IPC分类号： H04L41/00
摘要： This application provides a method for forwarding a service packet, a method for sending an SR policy, a device, and a system, and belongs to the field of network technologies. In the solution provided in this application, a network device may forward, according to a first candidate path in an SR policy through a sub-interface corresponding to a first network slice, a service packet, and the first candidate path and a first identifier of a first network slice corresponding to the first candidate path are encapsulated in the service packet. In this way, it may be ensured that the network device that receives the service packet can also continue to forward, according to the first candidate path, the service packet through the sub-interface corresponding to the first network slice. In this way, a network slice technology and the SR policy are combined, which effectively improves flexibility of forwarding the service packet.
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公开(公告)号：EP4239973A1
公开(公告)日：2023-09-06
申请号：EP21896055.7
申请日：2021-01-25
发明人： LIU, Shuying , FANG, Sheng , WEI, Xiugang , XIAO, Yaqun , GAO, Fang , XU, Guoqi , HU, Zhibo
IPC分类号： H04L45/74
摘要： A packet sending method and a related device are disclosed, to reduce a quantity of traffic engineering tunnels in a network and avoid complex configuration or management. This application includes a packet sending method, including: A network device obtains a first packet, where an internet protocol extension header of the first packet includes a first identifier, and the first identifier indicates a service requirement corresponding to the first packet. The network device determines, based on the first identifier and a second identifier, path indication information corresponding to the first packet, where a destination address of the first packet includes the second identifier, and the path indication information herein includes one or more of a network slice identifier and a segment identifier list. The network device updates the first packet based on the path indication information to obtain a second packet, and sends the second packet.
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3.发明公开
公开(公告)号：EP4239954A1
公开(公告)日：2023-09-06
申请号：EP21896873.3
申请日：2021-11-18
发明人： XU, Guoqi , HU, Zhibo , MA, Linlin
IPC分类号： H04L12/02
摘要： This application belongs to the field of communication technologies, and discloses a packet transmission method and apparatus, a device, and a computer-readable storage medium. An example is used in which the method is applied to a first communication device serving as an intermediate node in a transmission process. The method includes: The first communication device first obtains a first packet; selects, based on a network quality condition corresponding to the first packet, a first physical interface from at least two physical interfaces corresponding to a logical interface to send the first packet. A network quality parameter of the first physical interface corresponds to the network quality condition. In this application, the network quality parameter of the first physical interface for sending the first packet corresponds to the network quality condition. Therefore, cases such as a large delay and a high packet loss rate are reduced in a process of transmitting the first packet.
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公开(公告)号：EP3968584A1
公开(公告)日：2022-03-16
申请号：EP20818390.5
申请日：2020-05-17
发明人： XU, Guoqi , WEI, Naiwen , LIU, Yisong , ZHANG, Hao
IPC分类号： H04L12/761 , H04L12/46
摘要： This application discloses a method and apparatus for implementing multicast. When a multicast source performs route advertisement, route update is performed on a cross-DC integrated device, and a received device identifier and a received autonomous system AS number are replaced with a device identifier and an autonomous system AS number that are of the integrated device. In this way, when a multicast user joins the multicast source, each network device in the network can trace the multicast source based on a received route, and determine a multicast path that is from the multicast source to the multicast user. Therefore, it is possible to accurately perform, in a next-generation multicast virtual private network NG MVPN, cross-data-center DC multicast on traffic of the multicast source. In other words, when multicast sources and multicast users that are located in different DCs communicate with each other through the integrated device, the multicast source can provide a multicast service for the multicast user.
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公开(公告)号：EP4351263A1
公开(公告)日：2024-04-10
申请号：EP22824044.6
申请日：2022-05-30
发明人： HU, Zhibo , BAO, Lei , DONG, Jie , XU, Guoqi , YAN, Zhaoyang , ZHUANG, Shunwan
IPC分类号： H04W76/11
摘要： This application provides an information processing method, apparatus, and system. The method includes: A controller determines network slice information corresponding to a first network device. The controller sends a border gateway protocol BGP packet to the first network device, where the BGP packet includes the network slice information, and the network slice information is used by the first network device to configure a network slice. According to the technical solution provided in this application, efficiency of delivering network slice information can be improved.
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公开(公告)号：EP4199596A1
公开(公告)日：2023-06-21
申请号：EP21871435.0
申请日：2021-09-18
发明人： LIANG, Yanrong , XU, Guoqi , WANG, Yuxiao
IPC分类号： H04W40/24
摘要： Embodiments of this application disclose a routing information transmission method and apparatus. Before forwarding a service traffic packet, a first network device receives first BGP routing information sent by a second network device, to determine a first forwarding table entry based on a service identifier and an identifier of a first network slice that are in the first BGP routing information. The first forwarding table entry indicates to forward, to the second network device by using the first network slice, the service traffic corresponding to the service identifier. When receiving the service traffic packet corresponding to the service identifier, the first network device determines the first network slice based on the first forwarding table entry, and then sends the service traffic to the second network device by using the first network slice. In other words, a forwarding table entry is determined between network devices by sending BGP routing information that includes an identifier of a network slice and a service identifier, so that the forwarding table entry can be used to determine the network slice used for forwarding the service traffic, to meet a service forwarding requirement.
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7.发明公开
公开(公告)号：EP4199391A1
公开(公告)日：2023-06-21
申请号：EP21860241.5
申请日：2021-08-18
IPC分类号： H04L20060101
摘要： This application discloses a method for generating routing information, a method for sending location information, a method for forwarding a packet, and a device. The method includes: A first network device receives location information sent by a second network device. The location information includes a location identifier used to identify a location of the second network device in a network and a plurality of associated flexible algorithms corresponding to the location identifier. The first network device generates, based on a first flexible algorithm of the plurality of associated flexible algorithms, first routing information to the second network device. The first flexible algorithm corresponds to a first network topology, the first network topology is a network topology in which the first network device is located, and the first routing information is used to send a packet to the second network device in the first network topology. One location identifier corresponds to a plurality of associated flexible algorithms, and routing information in different network topologies is generated based on different associated flexible algorithms. Compared with a case in which one location identifier carries one flexible algorithm, in this case, address space is reduced, and network resources are saved.
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公开(公告)号：EP4293982A1
公开(公告)日：2023-12-20
申请号：EP22770378.2
申请日：2022-03-10
发明人： ZHENG, Juan , XU, Guoqi , BAO, Lei , CHEN, Xinjun , LIAO, Ting
IPC分类号： H04L45/655 , H04L45/645
摘要： This application provides a message processing method, a network device, and a controller, and pertains to the field of communication technologies. In this application, slice information, such as an identifier of a network slice and information about a path in the network slice, is carried in a message, and the message is reported to the controller, so that slice information on a forwarding plane is consistent with slice information on a control plane, and the controller controls a message forwarding path based on slice information on the network device. Therefore, this helps improve an effect of controlling the message forwarding path by the controller
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公开(公告)号：EP4236245A1
公开(公告)日：2023-08-30
申请号：EP21897166.1
申请日：2021-11-27
发明人： HU, Zhibo , XU, Guoqi , XIAO, Yaqun , GAO, Fang , BAO, Lei , FANG, Sheng , WANG, Zhenxing , YANG, Pingan , WANG, Cuijun
IPC分类号： H04L45/00
摘要： A route advertisement method and a related device are disclosed, to flexibly use network slices and reduce a network configuration. The method includes a route advertisement network system. The network system includes a first network device, a second network device, and a third network device. The first network device is configured to: obtain a first route advertisement message, where the first route advertisement message includes a first route prefix; and obtain a second route prefix based on the first route prefix, where the second route prefix corresponds to a first network slice, and the second route prefix is a subnet prefix of the first route prefix. The first network device advertises a second route advertisement message to the second network device, where the second route advertisement message includes the second route prefix.
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公开(公告)号：EP4120632A1
公开(公告)日：2023-01-18
申请号：EP21792571.8
申请日：2021-04-19
发明人： ZHAO, Mengkai , XU, Guoqi , LIU, Song , HU, Zhibo
IPC分类号： H04L12/26
摘要： Embodiments of this application disclose a route configuration method. The method in embodiments of this application is applied to a communications network. The communications network includes a first network slice and a second network slice. The first network slice includes a first path from a first network device to a target network device, and the second network slice includes a second path from the first network device to the target network device. The method includes: The first network device receives an association relationship sent by a second network device, where the association relationship includes an association relationship between the first path and the second path. The first network device generates first routing information between the first network device and the target network device based on the association relationship, where the first routing information is used by the first network device to send a packet to the target network device through the first path, and when a cross-slice condition is met, the first routing information is used by the first network device to send a packet to the target network device through the second path.
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