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1.发明授权公开(公告)号：US09742656B2
公开(公告)日：2017-08-22
申请号：US15137963
申请日：2016-04-25
发明人： Xiuli Zheng , Bailin Wen , Rong Wang
IPC分类号： H04L12/66 , H04L12/28 , H04L12/751 , H04L12/721 , H04L12/715 , H04L12/717 , H04L12/741 , H04L29/06
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.
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2.发明申请METHOD FOR ACQUIRING, BY SDN SWITCH, EXACT FLOW ENTRY, AND SDN SWITCH, CONTROLLER, AND SYSTEM 有权通过SDN切换，EXACT FLOW ENTRY和SDN切换，控制器和系统获取的方法公开(公告)号：US20160241459A1
公开(公告)日：2016-08-18
申请号：US15137963
申请日：2016-04-25
发明人： Xiuli Zheng , Bailin Wen , Rong Wang
IPC分类号： H04L12/751 , H04L29/06 , H04L12/741 , H04L12/721
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通过SDN交换机获取应用于SDN网络的SDN网络的精确流入口的方法，其中SDN网络包括SDN控制器和多个SDN交换机，SDN控制器与SDN交换机进行通信， 带内通信方式，该方法包括：首先通过第一SDN交换机建立与SDN控制器的可靠连接; 然后，基于与用于可靠连接的协议相对应的分组发送第一控制消息; 将所述第一SDN交换机的路径信息添加到所述控制消息; 并且随后，还通过接收到第一控制消息的每个SDN交换机将每个SDN交换机的路径信息添加到第一控制消息，使得最后，SDN控制器知道整个路径，以便将流表传送到 第一个SDN开关。
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公开(公告)号：US10904747B2
公开(公告)日：2021-01-26
申请号：US16221377
申请日：2018-12-14
发明人： Xiuli Zheng , Xiaohu Xu , Jiao Wang
摘要： The present application 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 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.
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4.发明授权公开(公告)号：US10367718B2
公开(公告)日：2019-07-30
申请号：US15681659
申请日：2017-08-21
发明人： Xiuli Zheng , Bailin Wen , Rong Wang
IPC分类号： H04L12/26 , H04L12/751 , H04L12/721 , H04L12/715 , H04L12/717 , H04L12/741 , H04L29/06
摘要： Embodiments disclose a method for acquiring, by a switch deployed in a software defined network (SDN), an exact flow entry, where the SDN network includes an SDN controller and multiple SDN switches, the SDN controller being configured to communicate with each SDN switch in an inband communication manner. The method includes establishing, by a first SDN switch, a reliable connection to the SDN controller, and sending a first control message based on a packet corresponding to a protocol for the reliable connection. Path information of the first SDN switch is added to the control message. Each SDN switch that receives the first control message adds path information of each SDN switch to the first control message, so that the SDN controller is provided with an entire path, so as to deliver a flow table to the first SDN switch.
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公开(公告)号：US10404544B2
公开(公告)日：2019-09-03
申请号：US15467495
申请日：2017-03-23
发明人： Xiuli Zheng
摘要： 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.
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6.发明申请公开(公告)号：US20170195186A1
公开(公告)日：2017-07-06
申请号：US15467495
申请日：2017-03-23
发明人： Xiuli Zheng
CPC分类号： H04L41/12 , H04L41/0226 , H04L41/042 , H04L43/0805
摘要： 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.
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公开(公告)号：US11044652B2
公开(公告)日：2021-06-22
申请号：US16442968
申请日：2019-06-17
发明人： Xiuli Zheng , Xiaohu Xu
IPC分类号： H04W36/14 , H04W8/14 , H04L9/00 , H04W12/0431 , H04W12/0433
摘要： Embodiments of the present disclosure disclose a handover method and an apparatus, so as to reduce a handover delay in a process of handing over an MN from a previous access network to a new access network. The method includes: sending, by the MN, first instruction information to a NAR by using a PAR, where the first instruction information is used to instruct the NAR to construct a care-of test initialization message and send the care-of test initialization message to a CN, and the care-of test initialization message includes an NCoA of the MN and is used to request a care-of keygen token from the CN based on the NCoA; handing over the MN from the PAR to the NAR; receiving, by the MN, the care-of keygen token sent by the NAR from the CN; and binding the MN with the CN based on the care-of keygen token.
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公开(公告)号：US20200220803A1
公开(公告)日：2020-07-09
申请号：US16818606
申请日：2020-03-13
发明人： Xiuli Zheng , Xiaohu Xu , Nongda Hu , Chuang Wang , Zhe Chen , Bingyang Liu
IPC分类号： H04L12/751 , H04L12/721 , H04L12/773
摘要： This application discloses a link-state advertisement LSA sending method, an apparatus, and a system, 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.
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9.发明授权公开(公告)号：US10182132B2
公开(公告)日：2019-01-15
申请号：US15333714
申请日：2016-10-25
发明人： Xiuli Zheng
IPC分类号： H04L29/06
摘要： Embodiments of the present disclosure provide a method, an apparatus, and a system for communication between an OpenFlow device and an IP network device. According to the embodiments of the present disclosure, an OpenFlow control message is used to carry payload information, a field value that is in a packet header and that is used to determine a protocol type, and identification information of the IP network device that are in a TCP/IP data packet of an IP network control plane protocol message in order to encapsulate the IP network control plane protocol message into the OpenFlow control message for transmission between an OFS and an OFC, such that communication between the OpenFlow device and the IP network device can be implemented, the OFC does not need to process a TCP/IP protocol stack twice, and extra overheads of the OFC are avoided.
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公开(公告)号：US11411853B2
公开(公告)日：2022-08-09
申请号：US16818606
申请日：2020-03-13
发明人： Xiuli Zheng , Xiaohu Xu , Nongda Hu , Chuang Wang , Zhe Chen , Bingyang Liu
IPC分类号： H04L12/751 , H04L12/721 , H04L45/02 , H04L45/12 , H04L45/60
摘要： This application discloses a link-state advertisement LSA sending method, an apparatus, and a system, 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.
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