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1.发明公开METHOD FOR SDN SWITCH TO ACQUIRE ACCURATE FLOW TABLE ENTRY AND SDN SWITCH, CONTROLLER AND SYSTEM 审中-公开程序对SDN开关用于记录精确流表条目和SDN开关，控制和系统
公开(公告)号：EP3062468A1
公开(公告)日：2016-08-31
申请号：EP14856251.5
申请日：2014-09-15
发明人： ZHENG, Xiuli , WEN, Bailin , WANG, Rong
IPC分类号： H04L12/741
摘要： Embodiments of the present invention disclose a method for acquiring, by an SDN switch, an exact flow entry, applied to an SDN network, where the SDN network includes an SDN controller and multiple SDN switches, the SDN controller communicates with each SDN switch in an inband communication manner, and the method includes: first establishing, by a first SDN switch, a reliable connection to the SDN controller; then, sending a first control message based on a packet corresponding to a protocol for the reliable connection; adding path information of the first SDN switch to the control message; and subsequently, also adding, by each SDN switch that receives the first control message, path information of each SDN switch to the first control message, so that finally, the SDN controller knows an entire path, so as to deliver a flow table to the first SDN switch.
摘要翻译： 本发明的实施例公开了一种用于获取，通过SDN切换到确切的流条目，在SDN网络，其中，所述SDN网络包括SDN控制器和多个SDN施加到交换机，SDN控制器在每个SDN交换机通信 带内通信的方式，并且该方法包括：第一建立，通过第一开关SDN，所述SDN控制器的可靠连接; 然后，发送第一控制消息基于对应于用于可靠连接的协议的分组; 将第一开关SDN于控制消息的路径信息; 随后，因此添加，由每个开关SDN那样接收第一控制消息，每个SDN切换到第一控制消息的路径信息，所以没有最后，SDN控制器知道到整个路径，以提供一个流表到 第一SDN开关。
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公开(公告)号：EP3672168A1
公开(公告)日：2020-06-24
申请号：EP18855730.0
申请日：2018-09-12
发明人： ZHENG, Xiuli , XU, Xiaohu , HU, Nongda , WANG, Chuang , CHEN, Zhe , LIU, Bingyang
IPC分类号： H04L12/715 , H04L12/751 , H04L12/721 , H04L12/753
摘要： This application discloses a link-state advertisement LSA sending method, an apparatus, and a system, and relates to the communications field, to reduce a quantity of LSA sending times. The method includes: generating, by a first router, a first path table based on level location information of the first router, level location information of a second router, and level location information of at least one third router; sending, by the first router, a first link state update LSU message to the second router; receiving, by the second router, the first link state update LSU message from the first router; updating, by the second router, a link state database LSDB of the second router based on a first LSA; and sending, by the second router, the first LSA to a router corresponding to an identifier in the first path table. Embodiments of this application are applied to sending an LSA in a leaf-spine topology or a fat-tree topology.
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公开(公告)号：EP3461080A1
公开(公告)日：2019-03-27
申请号：EP17818858.7
申请日：2017-03-17
发明人： ZHENG, Xiuli , WANG, Jiao
IPC分类号： H04L12/751
摘要： Embodiments of this application disclose a topology determining method, used by an OFC to determine a complete topology structure of a hybrid SDN-IP network. The method in the embodiments of this application includes: receiving, by an OFC, a first message forwarded by a first OFS, where a first port of the first OFS is connected to a second port of a first TS, and the first message includes identification information of the first TS and information about the second port; determining information about a link from the first TS to the first OFS based on the first message; sending a second message to the first OFS, and instructing the first OFS to forward the second message on the first port, so that the first TS obtains information about a link from the first OFS to the first TS; sending a third message, where the third message is used to request management information base MIB information of the first TS; receiving a response message of the third message, where the response message of the third message carries the MIB information of the first TS; and obtaining the information about the link from the first OFS to the first TS and information about a link from a second TS to the first TS based on the MIB information of the first TS.
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4.发明公开METHOD AND APPARATUS FOR DETERMINING NETWORK TOPOLOGY, AND CENTRALIZED NETWORK STATE INFORMATION STORAGE DEVICE 审中-公开用于确定网络拓扑的方法和设备以及集中式网络状态信息存储设备
公开(公告)号：EP3188408A1
公开(公告)日：2017-07-05
申请号：EP14902330.1
申请日：2014-09-23
发明人： ZHENG, Xiuli
IPC分类号： H04L12/24
摘要： The present invention pertains to the field of communications technologies and discloses a network topology determining method and apparatus, and a centralized network status information storage device. The method includes: obtaining first network status information, where the first network status information includes device information of first switching devices, link information between the first switching devices, device information of second switching devices that are connected to the first switching devices and that are not controlled by a first centralized network status information storage device, and link information between the first switching devices and the second switching devices that are respectively connected to the first switching devices; receiving second network status information sent by a second centralized network status information storage device; and determining, according to the first network status information and the second network status information, a network topology of a management domain or an autonomous system to which the first centralized network status information storage device belongs. According to the present invention, a network topology of a same management domain or autonomous system is determined, so as to facilitate uniform scheduling of resources between different devices.
摘要翻译： 本发明属于通信技术领域，公开了一种网络拓扑确定方法和装置以及集中式网络状态信息存储设备。 该方法包括：获取第一网络状态信息，第一网络状态信息包括第一交换设备的设备信息，第一交换设备之间的链路信息，第一交换设备连接的第二交换设备的设备信息， 由第一集中式网络状态信息存储设备控制，以及分别连接到第一交换设备的第一交换设备和第二交换设备之间的链路信息; 接收第二集中式网络状态信息存储设备发送的第二网络状态信息; 根据所述第一网络状况信息和所述第二网络状况信息，确定所述第一集中网络状况信息存储设备所属的管理域或自治系统的网络拓扑。 根据本发明，确定相同管理域或自治系统的网络拓扑，以便于统一调度不同设备之间的资源。
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公开(公告)号：EP3739846A1
公开(公告)日：2020-11-18
申请号：EP19747774.8
申请日：2019-01-23
发明人： YU, Delei , REN, Shoushou , ZHENG, Xiuli , MAO, Haiyan , ZHANG, Yongtao , MA, Ailiang
IPC分类号： H04L29/08 , H04L12/741
摘要： This application provides a communication method and a communications device, so that both a location and a length of information carried in a data packet header are flexible and variable, the length does not need to be fixed, and the location does not need to be specified. Compared with a conventional protocol, the communication method has stronger flexibility and higher scalability. The method includes: obtaining, by a first device, a data packet, where the data packet includes a first packet header, the first packet header includes first indication information and a value of first packet header information, the first indication information is used to indicate a location of the value of the first packet header information, and the first packet header information is device identification information; and processing, by the first device, the data packet.
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公开(公告)号：EP3188408B1
公开(公告)日：2020-07-29
申请号：EP14902330.1
申请日：2014-09-23
发明人： ZHENG, Xiuli
IPC分类号： H04L12/24
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公开(公告)号：EP3461098A1
公开(公告)日：2019-03-27
申请号：EP17826781.1
申请日：2017-03-07
发明人： ZHENG, Xiuli , XU, Xiaohu , WANG, Jiao
IPC分类号： H04L29/06
摘要： The present invention discloses a service data packet encapsulation method and apparatus. The method includes at least: obtaining, by a source communications device, a mobility support parameter of a current service, where the mobility support parameter is used to indicate whether a corresponding service requires mobility support, and the source communications device includes at least an ID identifier layer and a locator locator layer; determining, by the source communications device based on the mobility support parameter of the current service, whether the current service requires mobility support; and obtaining, by the source communications device, a source locator of the source communications device and a destination locator of a destination communications device when determining that the current service does not require mobility support, and performing, by using the source locator and the destination locator, locator layer encapsulation on a data packet that needs to be sent by the current service. According to the method and the apparatus in the present invention, network overheads can be reduced.
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