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1.发明公开
公开(公告)号：EP4395270A1
公开(公告)日：2024-07-03
申请号：EP22869098.8
申请日：2022-09-07
发明人： PENG, Shuping , FANG, Sheng , ZHUANG, Shunwan , WANG, Haibo , LI, Zhenbin
IPC分类号： H04L47/2441
CPC分类号： H04L47/2441 , H04L47/2425 , H04L47/24
摘要： This application relates to the field of communications technologies, and discloses a packet processing method, a flow specification transmission method, a device, a system, and a storage medium. For example, a first network device performs the packet processing method. The first network device obtains a first service packet and a plurality of flow specification FlowSpec rule groups, where any FlowSpec rule group in the plurality of FlowSpec rule groups indicates a rule set for processing a service packet, and different FlowSpec rule groups correspond to different priorities. The first network device determines a target FlowSpec rule group, where the target FlowSpec rule group is a FlowSpec rule group in the plurality of FlowSpec rule groups that successfully matches the first service packet and that has the highest priority. The first network device processes the first service packet according to the target FlowSpec rule group. A service packet is processed according to a FlowSpec rule group, so that processing efficiency can be improved.
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公开(公告)号：EP4304149A2
公开(公告)日：2024-01-10
申请号：EP23194164.2
申请日：2019-11-02
发明人： WANG, Haibo , ZHUANG, Shunwan
IPC分类号： H04L45/748
摘要： 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.
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公开(公告)号：EP4258612A2
公开(公告)日：2023-10-11
申请号：EP23178440.6
申请日：2019-02-27
发明人： XIE, Jingrong , YAN, Gang , XIA, Yang , ZHUANG, Shunwan , CHEN, Guoyi
IPC分类号： H04L45/16
摘要： This application provides a multicast data packet processing method and a forwarding device. The method includes: establishing, by a first forwarding device, a segment routing header SRH-based tunnel with a third forwarding device, where the SRH-based tunnel passes through a second forwarding device that does not support bit index explicit replication BIER; generating, by the first forwarding device, a first multicast data packet based on a multicast data packet from a multicast source and the SRH-based tunnel, where 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, by the first forwarding device, the first multicast data packet to the second forwarding device through the SRH-based tunnel.
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公开(公告)号：EP4175240A1
公开(公告)日：2023-05-03
申请号：EP21842512.2
申请日：2021-07-13
发明人： ZHUANG, Shunwan , WANG, Haibo , ZHOU, Tianran , LI, Weidong , DONG, Jie
IPC分类号： H04L41/00
摘要： Embodiments of this application disclose a capability notification method and a related device, to resolve a technical problem of manually configuring complex iFIT capability configuration. The method according to embodiments of this application includes: A first network device sends a first packet to a second network device, where the first packet includes first indication information, and the first indication information indicates a support status of an iFIT capability corresponding to the first network device or a first service module included in the first network device. The first network device sends the packet to the second network device, to notify the support status of the IFIT capability of the first network device. In this way, the second network device can determine, based on the iFIT capability of the first network device, whether to encapsulate a measurement header, to avoid that a service packet cannot be correctly processed because the first network device cannot strip the measurement header from the service packet.
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5.发明公开
公开(公告)号：EP4117239A1
公开(公告)日：2023-01-11
申请号：EP21779882.6
申请日：2021-03-10
发明人： WANG, Haibo , ZHUANG, Shunwan
IPC分类号： H04L12/707 , H04L12/721 , H04L12/741
摘要： A route sending method and apparatus, a route processing method and apparatus, a device, and a storage medium are provided. The method includes: A first network device sends route information of a destination network device, where the route information includes a destination address, a primary next-hop address, and a backup next-hop address, the destination address includes an address of the destination network device, the primary next-hop address includes a common address of the first network device and a second network device, for example, a loopback address, and the backup next-hop address includes an address of the first network device, for example, an Internet Protocol IP address of the first network device. By using this method, when a fault occurs in a connection between the second network device and the destination network device, another network device may directly send a packet to the first network device according to the backup next-hop address, to ensure normal packet forwarding.
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公开(公告)号：EP4047884A3
公开(公告)日：2022-11-23
申请号：EP21209223.3
申请日：2017-11-17
发明人： WANG, Haibo , CHEN, Dapeng , ZHUANG, Shunwan
IPC分类号： H04L12/46
摘要： A route processing method, a device, and a system are disclosed. The method includes the following: An NVE device set including at least two NVE devices includes a common VTEP address. The common VTEP address is used to identify a common VTEP, and the common VTEP is deployed on each NVE device in the NVE device set. In addition, each NVE device in the NVE device set includes a VTEP address, and the VTEP address is used to identify a VTEP included in a corresponding NVE device. An NVE device in the NVE device set establishes a VXLAN tunnel between the NVE devices in the NVE device set based on a VTEP address and the common VTEP address by using an IMET route. Therefore, this helps extend an EVPN application scenario and also helps improve reliability and reduce deployment complexity.
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公开(公告)号：EP3896923A1
公开(公告)日：2021-10-20
申请号：EP20769224.5
申请日：2020-03-07
发明人： XIE, Jingrong , LIU, Yisong , ZHUANG, Shunwan , WEI, Naiwen
IPC分类号： H04L12/761 , H04L12/715 , H04L12/723 , H04L12/741 , H04L12/753 , H04L12/46
摘要： This application provides a bit index explicit replication BIER packet sending method. The method includes: receiving, by a first node, a packet sent by 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. In technical solutions provided in this application, path information sent to the second BIER domain may be determined based on the identifier that is of the second BIER domain and that is carried in the second node and according to the preconfigured BIER packet sending policy. This avoids relatively high signaling overheads caused when the second node directly sends the path information of the second BIER domain in the conventional technology.
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公开(公告)号：EP3886382A1
公开(公告)日：2021-09-29
申请号：EP21156972.8
申请日：2017-07-31
发明人： YAN, Changjiang , ZHUANG, Shunwan , WU, Nan
IPC分类号： H04L12/741 , H04L12/66
摘要： An information management method is provided. A controller generates a first message carrying an address of a first next hop of a network device. The first message includes first identification information. The first identification information is used to instruct the network device to delete, from a next hop table stored in the network device, an entry that is of the first next hop and that corresponds to the address of the first next hop. The network device receives the first message, and deletes the entry of the first next hop as indicated by the first identification information. The controller can withdraw an unavailable next hop by separately sending information about the next hop to the network device without route prefix information, effectively saving a system resource occupied for route withdrawal message exchanging between the controller and the network device, and improving service processing efficiency.
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公开(公告)号：EP3468117A1
公开(公告)日：2019-04-10
申请号：EP16906842.6
申请日：2016-07-01
发明人： ZHUANG, Shunwan , ZHANG, Junlin , WU, Nan
IPC分类号： H04L12/801
摘要： The present invention discloses an SFC-based packet forwarding method, an apparatus, and a system, which can implement redirection of a packet forwarding path through automatic configuration that is performed by a control node on a service function forwarding node. The packet forwarding method includes: receiving, by a first service function forwarding node, a packet forwarding rule sent by a control node, where the packet forwarding rule is used to indicate a mapping relationship between a match item of traffic characteristic information of a packet and route prefix information; receiving, by the first service function forwarding node, a first packet, where a header of the first packet carries traffic characteristic information of the first packet; determining, by the first service function forwarding node based on the packet forwarding rule, target route prefix information corresponding to the traffic characteristic information of the first packet; and determining, by the first service function forwarding node, target next-hop information based on the target route prefix information, and forwarding the first packet based on the target next-hop information.
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公开(公告)号：EP3402141A1
公开(公告)日：2018-11-14
申请号：EP16887534.2
申请日：2016-07-25
发明人： ZHUANG, Shunwan , XU, Haijun , WANG, Haibo , LI, Zhenbin , CHE, Jia , CHEN, Shuanglong
IPC分类号： H04L12/723
摘要： Embodiments of the present invention provide a VPN service optimization method and a network device. A first network device includes: an analysis unit, configured to analyze a data stream entering a network on which the first network device is located, to obtain a traffic characteristic of a target data stream; and a route advertisement unit, configured to advertise a FlowSpec route, where the FlowSpec route carries redirect indication information, the redirect indication information includes identification information, the identification information is used to uniquely identify a first VPN instance in a second network device, the redirect indication information is used to instruct to redirect the data stream including the traffic characteristic of the target data stream to the first VPN instance, the second network device is an edge device of a service provider network accessed by the network, and the first VPN instance is a target VPN instance to which the target data stream is redirected in the second network device.
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