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公开(公告)号：EP4177765A1
公开(公告)日：2023-05-10
申请号：EP21847128.2
申请日：2021-07-16
发明人： ZHUANG, Shunwan , WANG, Haibo , GU, Yunan , XIA, Zhongqi
IPC分类号： G06F15/16
摘要： This application discloses a route management method and an AS management solution. A device may obtain a correspondence, where the correspondence includes a first autonomous system AS identifier and a second AS identifier, and the correspondence indicates that the first AS identifier and the second AS identifier are sibling ASes. The device further performs route management based on the correspondence, where the route management includes direct route management or indirect route management.
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公开(公告)号：EP4131868A1
公开(公告)日：2023-02-08
申请号：EP21796815.5
申请日：2021-04-29
发明人： ZHUANG, Shunwan , YANG, Ping'an , WANG, Haibo , GU, Yunan
IPC分类号： H04L12/715
摘要： Embodiments of this application disclose an information reporting method, an information processing method, an apparatus, and a device, to resolve a problem in the conventional technology that a local routing message reported by a network device to a monitoring device includes an excessively small amount of information. The method in embodiments of this application includes: The network device obtains a routing prefix included in local routing information and information about a neighboring peer set corresponding to the routing prefix, and sends a local route monitoring message including the routing prefix and the information about the neighboring peer set to a first device. The neighboring peer set includes a source peer set and/or a destination peer set, the source peer set includes one or more source peers, the source peer is a peer that advertises original routing information including the routing prefix to the network device, the destination peer set includes one or more destination peers, and the destination peer is a peer to which the network device advertises destination routing information including the routing prefix.
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公开(公告)号：EP4060950A1
公开(公告)日：2022-09-21
申请号：EP20910449.6
申请日：2020-09-30
发明人： WANG, Haibo , ZHUANG, Shunwan , JIA, Junli , WU, Hong , WANG, Shuqiang
IPC分类号： H04L12/715
摘要： A path verification method and a related device are provided, and are used in the field of communication technologies. The method includes: A network device obtains path information of a packet forwarding path, where the packet forwarding path passes through a third autonomous system AS, a second AS, and a first AS in sequence, and the third AS, the second AS, and the first AS are sequentially adjacent. The network device determines a business relationship of a first AS pair and a business relationship of a second AS pair, where the first AS pair includes the first AS and the second AS that are sequentially arranged, and the second AS pair includes the second AS and the third AS that are sequentially arranged. The network device determines, based on the business relationship of the first AS pair and the business relationship of the second AS pair, whether the packet forwarding path is valid. In embodiments of this application, whether a path is valid needs to be determined based on business relationships of neighboring AS pairs, to more accurately verify a leakage status of P2P routing information, so that a verification result is more trustworthy.
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公开(公告)号：EP4047886A1
公开(公告)日：2022-08-24
申请号：EP20887621.9
申请日：2020-11-12
发明人： ZHUANG, Shunwan , WANG, Haibo , GU, Yunan , YAN, Gang , LI, Zhenbin
IPC分类号： H04L12/715 , H04L29/12
摘要： Embodiments of this application disclose an information reporting method, an information processing method, and a device, to improve efficiency of obtaining BGP information and reduce costs. The information reporting method includes: A network device obtains Border Gateway Protocol BGP information of the network device. The network device sends a BGP Monitoring Protocol BMP notification message to a first device, where the BMP notification message carries the BGP information of the network device.
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公开(公告)号：EP4037288A1
公开(公告)日：2022-08-03
申请号：EP21205533.9
申请日：2017-11-23
发明人： XU, Haijun , ZHUANG, Shunwan , WANG, Haibo
摘要： This application discloses a route detection method and a network device. The method includes: establishing, by a first network device, a first BMP session with a second network device, and establishing, by the first network device, a second BMP session with a third network device; receiving, by the first network device by using the first BMP session, a first BGP route set sent by the second network device, where the first BGP route set includes a BGP route sent by the second network device to the third network device, and a BGP peer has been established between the third network device and the second network device; receiving, by the first network device by using the second BMP session, a second BGP route set sent by the third network device, where the second BGP route set includes the BGP route received by the third network device from the second network device; and when detecting that the second BGP route set includes a first BGP route but the first BGP route set does not include the first BGP route, determining, by the first network device, the first BGP route as an unavailable route. In the method, the first network device can detect validity of BGP route information.
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公开(公告)号：EP4007235A1
公开(公告)日：2022-06-01
申请号：EP21207226.8
申请日：2021-11-09
发明人： WANG, Haibo , ZHUANG, Shunwan , YAN, Gang
IPC分类号： H04L41/12 , H04L41/0806 , H04L43/0805 , H04L45/02 , H04L45/00 , H04L45/28 , H04L43/0829
摘要： Embodiments of this application disclose a route advertisement method and a route generation method, to improve route convergence efficiency and reduce a packet loss rate. The route advertisement method includes: A first network device obtains routing information of a destination device. The first network device generates a first route advertisement message, where the first route advertisement message includes the routing information of the destination device, a routing prefix, and first indication information. The first network device sends the first route advertisement message to a second network device. The first route advertisement message is used to indicate the second network device to generate a route to the destination device based on the routing information of the destination device. The first indication information is used to indicate the second network device to iterate, to a route corresponding to the routing prefix, the route to the destination device.
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公开(公告)号：EP3923532A1
公开(公告)日：2021-12-15
申请号：EP19918628.9
申请日：2019-12-26
发明人： ZHUANG, Shunwan , WANG, Haibo , GU, Yunan , YAN, Gang , LI, Zhenbin
IPC分类号： H04L29/06
摘要： Embodiments of this application provide a BGP route identification method and apparatus, and a device. A network device obtains a BGP route. The BGP route includes an autonomous system path attribute AS_PATH attribute, the AS_PATH attribute includes a first autonomous system number AS number, an AS number corresponding to an autonomous system that the network device is located in or manages is a second AS number, and the first AS number is equal to the second AS number. The network device determines, based on the first AS number and the second AS number, whether the BGP route is abnormal, so that an abnormal loop route caused by a reason such as route hijacking can be found in a timely manner, thereby improving network security.
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公开(公告)号：EP3806409A1
公开(公告)日：2021-04-14
申请号：EP19827130.6
申请日：2019-06-15
发明人： XIE, Jingrong , XIA, Yang , YAN, Gang , ZHUANG, Shunwan
IPC分类号： H04L12/761
摘要： This application provides a packet sending method. The method includes: generating, by a first device, a first packet including a BIER header, where the BIER header includes entropy, and the entropy includes a first part and a second part; determining, by the first device based on a destination address of the first packet, that there are a plurality of forwarding entries used to forward the first packet; selecting, by the first device, one forwarding entry from the plurality of forwarding entries based on the first part, where the selected forwarding entry includes an address of a second device, and the second device is a next-hop device of the first device; and sending, by the first device, the first packet to the second device, where the second part is used by the second device to select, from a plurality of forwarding entries used to forward the first packet, a forwarding entry used by the second device to forward the first packet. According to the foregoing method, multi-stage load sharing of a data flow can be flexibly implemented based on different parts of the entropy.
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公开(公告)号：EP3780545A1
公开(公告)日：2021-02-17
申请号：EP20181581.8
申请日：2017-03-16
发明人： LI, Zhenbin , ZHUANG, Shunwan , CHEN, Xia , WU, Nan , LIANG, Qiandeng
IPC分类号： H04L29/06 , H04L12/713 , H04L12/715 , H04L12/741 , H04L12/46
摘要： Embodiments of the present invention provide a Flow Specification-based communications method, device, and system. The method includes: obtaining, by a controller, a requirement indicating that a first resource on a forwarding device needs to be associated with a second resource on the forwarding device; and sending, by the controller, a Border Gateway Protocol Flow Specification BGP Flow Spec protocol packet according to the requirement, where the BGP Flow Spec protocol packet includes a network layer reachability information field and an extended community attribute field, the network layer reachability information field carries characteristic information of the first resource, the extended community attribute field carries a global identifier GID used to indicate the second resource, and the BGP Flow Spec protocol packet is used to instruct to associate the first resource with the second resource. According to the embodiments of the present invention, unlimited extension of the BGP Flow Spec protocol can be effectively avoided.
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公开(公告)号：EP3780517A1
公开(公告)日：2021-02-17
申请号：EP19793978.8
申请日：2019-02-27
发明人： XIE, Jingrong , YAN, Gang , XIA, Yang , ZHUANG, Shunwan , CHEN, Guoyi
IPC分类号： H04L12/741
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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