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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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公开(公告)号：US20170041195A1
公开(公告)日：2017-02-09
申请号：US15298476
申请日：2016-10-20
发明人： Jiao Wang
IPC分类号： H04L12/24 , H04L12/813 , H04L12/751
CPC分类号： H04L41/12 , H04L12/4633 , H04L45/38 , H04L45/64
摘要： A tunnel type selection method and apparatus, which relate to the field of information technologies, and can reduce data packet forwarding complexity. The method includes first, combining, by a controller, a code and a label value that are corresponding to a tunnel type supported by a next-hop switch, generating an OXM_OF_TUNNEL_ID match field, and sending a forwarding policy that carries the OXM_OF_TUNNEL_ID match field to a previous-hop OPENFLOW switch, then, extracting, by the previous-hop OPENFLOW switch, the code and the label value that are corresponding to the tunnel type, and encapsulating a data packet according to the code and the label value that are corresponding to the tunnel type, finally, sending, by the previous-hop OPENFLOW switch, the encapsulated data packet to the next-hop switch. The embodiments of the present disclosure are applicable to data packet forwarding in a hybrid networking environment of an OPENFLOW switch and a conventional switch.
摘要翻译： 一种与信息技术领域相关的隧道类型选择方法和装置，可以减少数据包转发的复杂度。 该方法首先由控制器组合与下一跳交换机支持的隧道类型对应的代码和标签值，生成OXM_OF_TUNNEL_ID匹配字段，并发送携带OXM_OF_TUNNEL_ID匹配字段的转发策略 前一跳OPENFLOW交换机，然后由上一跳OPENFLOW交换机提取与隧道类型相对应的代码和标签值，并根据代码和与之对应的标签值封装数据包 隧道类型，最后由上一跳OPENFLOW交换机将封装的数据包发送到下一跳交换机。 本公开的实施例可应用于OPENFLOW开关和传统交换机的混合组网环境中的数据分组转发。
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公开(公告)号：US09479384B2
公开(公告)日：2016-10-25
申请号：US13930083
申请日：2013-06-28
发明人： Jiao Wang
IPC分类号： G06F15/16 , H04L29/06 , H04L12/721
CPC分类号： H04L29/06517 , H04L45/38 , H04L65/80
摘要： Embodiments of the present invention provide a data stream scheduling method, device, and system, and relate to data processing technologies, so as to reduce a delay in a data stream scheduling process and relieve a congestion problem of a forwarding link during forwarding of a data stream, where the method includes: receiving, by a data stream scheduling entity in a network, a data packet that is currently transmitted and obtaining data stream information of a data stream where the data packet is located; determining a type of the data stream according to the data stream information; and when the data stream is a specific data stream, applying to a centralized control device in the network for an optimized forwarding policy, so as to forward the data stream, or when the data stream is a common data stream, forwarding the data stream according to a default forwarding policy.
摘要翻译： 本发明的实施例提供一种数据流调度方法，设备和系统，并且涉及数据处理技术，以便减少数据流调度过程中的延迟并且在转发数据期间减轻转发链路的拥塞问题 流，其中所述方法包括：由网络中的数据流调度实体接收当前发送的数据分组，并获得数据分组所位于的数据流的数据流信息; 根据数据流信息确定数据流的类型; 并且当数据流是特定数据流时，向网络中的集中控制设备应用优化的转发策略，以便转发数据流，或者当数据流是公共数据流时，根据 到默认转发策略。
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公开(公告)号：US12040986B2
公开(公告)日：2024-07-16
申请号：US17488005
申请日：2021-09-28
发明人： Siyu Tang , Jiao Wang , Zdenek Hanzalek , Marek Vlk , Katerina Jaskova
IPC分类号： H04L47/28 , H04L47/2416 , H04L47/2441 , H04L47/56
CPC分类号： H04L47/28 , H04L47/2416 , H04L47/2441 , H04L47/562
摘要： A device and method for a switch to operate as an intermediate node in a Time Sensitive Network (TSN) are provided. The switch transmits a frame at a time if it is the right frame to be transmitted at the time according to a configuration stored by the switch. The switch does not transmit the frame at the time if it is not the right frame to be sent at the time according to the configuration. Further, a device and method for scheduling transmission of a data packet from a talker node to a listener node are provided, including sending a configuration to each switch of a subset of switches in the network comprising information on the flow and a timing when it is to be output from the switch.
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5.发明授权公开(公告)号：US10103979B2
公开(公告)日：2018-10-16
申请号：US15382041
申请日：2016-12-16
发明人： Jianfei Li , Jiao Wang
IPC分类号： H04L12/771 , H04L12/803 , H04L12/801 , H04L12/729 , H04L12/707
摘要： A control device, a system, and a transmission channel adjustment method in software-defined networking (SDN) where, a connection status of a control channel is acquired, it is determined, according to a preset threshold, whether a standby channel is suitable to continue serving as a standby channel. The standby channel is adjusted when the standby channel is congested to a specific extent and another uncongested channel is set as the standby channel, and the standby channel is switched to an active channel when the active channel is congested such that real-time channel adjustment is ensured, effective transmission of control information is ensured, and control reliability of a control device in SDN is improved.
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公开(公告)号：US20170277575A1
公开(公告)日：2017-09-28
申请号：US15619178
申请日：2017-06-09
发明人： Jiao Wang , Cheng Zuo , Hongfang Yu
IPC分类号： G06F9/50 , H04L12/911 , G06F9/455 , H04L29/08
CPC分类号： G06F9/5077 , G06F9/45558 , G06F9/5066 , G06F2009/4557 , G06F2009/45595 , H04L29/08 , H04L47/82 , H04L67/10 , Y02D10/22 , Y02D10/36 , Y02D50/10
摘要： A virtual data center resource mapping method and device. The method includes: S202: receiving a VDC resource request, where the VDC resource request carries a virtual machine distribution identifier, and the virtual machine distribution identifier is used to indicate a maximum quantity K of virtual machines that can be borne by a single physical server; S204: selecting, from an unmapped virtual machine set Q in the VDC resource request, M virtual machines to form a partition P; S206: selecting a target physical server that can provide a physical resource required by the partition P, and mapping the partition P to the target physical server; and S208: removing, from the set Q, the M virtual machines on which resource mapping has been performed, and repeatedly performing steps 204, 206 and 208 until no virtual machine on which resource mapping has not been performed exists in the set Q.
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公开(公告)号：US10805169B2
公开(公告)日：2020-10-13
申请号：US16234009
申请日：2018-12-27
发明人： Xiuli Zheng , Jiao Wang
IPC分类号： H04L12/24 , H04L12/715 , H04L12/751 , H04L29/08
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 includes: receiving, by an OFC, a first message forwarded by a first OFS; 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; sending a third message to the first OFS; receiving a first response message, where the first response 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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公开(公告)号：US20170034076A1
公开(公告)日：2017-02-02
申请号：US15294468
申请日：2016-10-14
发明人： Jiao Wang , Pengfei Zhang , Xuan Luo
IPC分类号： H04L12/911 , H04L12/741 , H04L12/24 , H04L29/12 , H04L12/46 , H04L12/931
摘要： Embodiments of the present disclosure provide a resource allocation method, a packet communication method, and an apparatus. The resource allocation method includes: dividing, by a controller, a cloud data center network into multiple independent logical zones; allocating a corresponding tunnel label range to each logical zone; when a virtual network request for allocating a resource to a tenant is received, searching the logical zones to obtain a logical zone that meets the virtual network request; and allocating a tunnel label to the tenant according to a tunnel label range corresponding to the logical zone that meets the virtual network request. Because each logical zone is independent, during tunnel label range allocation, a same tunnel label range can be allocated to different logical zones. In this way, a same tunnel label can be allocated to different switches in different logical zones, implementing reuse of the tunnel label.
摘要翻译： 本公开的实施例提供资源分配方法，分组通信方法和装置。 资源分配方法包括：由控制器将云数据中心网划分成多个独立的逻辑区; 向每个逻辑区域分配相应的隧道标签范围; 当接收到向租户分配资源的虚拟网络请求时，搜索逻辑区域以获得满足虚拟网络请求的逻辑区域; 并根据与满足虚拟网络请求的逻辑区域相对应的隧道标签范围向租户分配隧道标签。 由于每个逻辑区域是独立的，在隧道标签范围分配期间，相同的隧道标签范围可以分配给不同的逻辑区域。 这样，可以在不同逻辑区域中的不同交换机上分配相同的隧道标签，实现隧道标签的重用。
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公开(公告)号：US09361039B2
公开(公告)日：2016-06-07
申请号：US14064346
申请日：2013-10-28
发明人： Jiao Wang , Songhai Ye
CPC分类号： G06F3/0647 , G06F3/0619 , G06F3/067 , G06F9/45558 , G06F2009/45595 , H04L41/0896 , H04L43/0817 , H04L43/16
摘要： A method, related apparatus, and system for virtual network migration are provided. A method provided by an embodiment of the present disclosure includes: locating a source physical node in a regional physical network; obtaining information of a virtual element corresponding to each virtual network on the source physical node and state information of each physical node in the regional physical network; determining, according to information of the virtual elements and the state information, a physical node that can execute virtual network migration in the regional physical network; reconstructing a mapping relationship between each virtual network and the regional physical network on the physical node; comparing the mapping relationships of each virtual network; selecting a mapping relationship with minimum migration consumption as a mapping relationship for executing migration; and sending, according to the mapping relationship for executing migration, a migration instruction to a physical node to execute virtual network migration.
摘要翻译： 提供了一种用于虚拟网络迁移的方法，相关设备和系统。 由本公开的实施例提供的方法包括：将源物理节点定位在区域物理网络中; 获取对应于源物理节点上的每个虚拟网络的虚拟元素的信息和区域物理网络中每个物理节点的状态信息; 根据虚拟元素和状态信息的信息，确定能够在区域物理网络中执行虚拟网络迁移的物理节点; 重建物理节点上每个虚拟网络与区域物理网络之间的映射关系; 比较每个虚拟网络的映射关系; 选择具有最小迁移消耗的映射关系作为执行迁移的映射关系; 并根据用于执行迁移的映射关系发送到物理节点的迁移指令以执行虚拟网络迁移。
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公开(公告)号：US20170171039A1
公开(公告)日：2017-06-15
申请号：US15442544
申请日：2017-02-24
发明人： Jinzhao Su , Jiao Wang
CPC分类号： H04L43/04 , H04L45/38 , H04L47/2441 , H04L47/2483 , H04L69/22
摘要： A network flow information collection method and apparatus. A switching device receives a data packet, and collects network flow information of the data packet according to all flow entries when the data packet passes from an ingress port to an egress port in the switching device. All flow entries when a same network flow data packet passes from the ingress port to the egress port in the switching device are the same, and all flow entries when different network flow data packets pass from the ingress port to the egress port in the switching device are different. That is, all the flow entries passed from the ingress port to the egress port can uniquely identify one network flow. Therefore, each piece of the network flow information forwarded by the switching device can be accurately collected, improving accuracy of collecting network flow information by the switching device.
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