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1. 发明授权

US09160612B2 Management of distributed virtual switch and distributed virtual ports 有权
标题翻译：分布式虚拟交换机和分布式虚拟端口的管理
公开(公告)号：US09160612B2
公开(公告)日：2015-10-13
申请号：US13470560
申请日：2012-05-14
申请人： Andrew Lambeth , Shudong Zhou
发明人： Andrew Lambeth , Shudong Zhou
IPC分类号： G06F9/455 , H04L29/12 , H04L12/931 , H04L12/28
CPC分类号： H04L49/70 , G06F9/45558 , G06F2009/4557 , G06F2009/45575 , G06F2009/45579 , G06F2009/45595 , H04L29/12839 , H04L61/6022
摘要： A method creates a distributed virtual switch (DVswitch) and distributed virtual ports (DVports) for the DVswitch. The DVswitch binds virtual switches in a collection of hosts together in a software abstraction. Also, the DVports are available for connection by virtual network interface cards (VNICs) of virtual machines in the collection of hosts. A request is received for a connection of a virtual network interface card (VNIC) of a virtual machine for a host in the collection of hosts to a DVport. If the requested DVport is available, the method provides connection information for the requested DVport to the host to allow the host to connect the requested DVport to the VNIC. The DVport stores a runtime state for a virtual port associated with a virtual switch for the host and the virtual switch forwards network frames between the VNIC and a physical network interface card (NIC).
摘要翻译：一种方法为DVswitch创建分布式虚拟交换机（DVswitch）和分布式虚拟端口（DVports）。 DVswitch以软件抽象方式将主机集合中的虚拟交换机绑定在一起。此外，DVport可以由主机集合中的虚拟机的虚拟网络接口卡（VNIC）连接。接收到用于主机的主机的虚拟机的虚拟网络接口卡（VNIC）与DVport的连接的请求。如果请求的DVport可用，则该方法向主机提供所请求的DVport的连接信息，以允许主机将所请求的DVport连接到VNIC。 DVport存储与主机的虚拟交换机相关联的虚拟端口的运行时状态，虚拟交换机在VNIC和物理网络接口卡（NIC）之间转发网络帧。

2. 发明授权

US09008087B2 Processing requests in a network control system with multiple controller instances 有权
标题翻译：在具有多个控制器实例的网络控制系统中处理请求
公开(公告)号：US09008087B2
公开(公告)日：2015-04-14
申请号：US13219562
申请日：2011-08-26
申请人： W. Andrew Lambeth , Jeremy Stribling , Teemu Koponen
发明人： W. Andrew Lambeth , Jeremy Stribling , Teemu Koponen
IPC分类号： H04L12/28 , G06F15/16 , G06F17/30 , H04L12/931 , H04L12/24 , G06F11/07
CPC分类号： H04L41/0893 , G06F11/07 , G06F15/17312 , H04L12/4633 , H04L41/0816 , H04L41/0853 , H04L41/0896 , H04L45/00 , H04L45/586 , H04L47/783 , H04L49/00 , H04L49/1546 , H04L49/3063 , H04L49/70 , H04L61/2007 , H04L61/6022
摘要： A control system that includes several controllers for managing several switching elements. A first controller receives a request to modify a data tuple stored in a network information base (NIB) storage of the first controller that stores data for managing a set of switching elements. The first controller determines whether the received request to modify should be processed by the first controller. When the received request should be modified by the first controller, the first controller modifies the set of data in the NIB storage. The first controller updates a request list that is propagated between the controllers to disseminate requests to modify different data tuples that are stored in the NIB storages of the different controllers.
摘要翻译：一种控制系统，包括用于管理多个开关元件的多个控制器。第一控制器接收修改存储在存储用于管理一组开关元件的数据的第一控制器的网络信息库（NIB）存储器中的数据元组的请求。第一控制器确定接收的修改请求是否应由第一控制器处理。当接收的请求应由第一控制器修改时，第一控制器修改NIB存储器中的数据集。第一控制器更新在控制器之间传播的请求列表，以传播修改存储在不同控制器的NIB存储器中的不同数据元组的请求。

3. 发明申请

US20130058357A1 DISTRIBUTED NETWORK VIRTUALIZATION APPARATUS AND METHOD 有权
标题翻译：分布式网络虚拟化设备和方法
公开(公告)号：US20130058357A1
公开(公告)日：2013-03-07
申请号：US13177531
申请日：2011-07-06
申请人： Teemu Koponen , Pankaj Thakkar , Martin Casado , W. Andrew Lambeth
发明人： Teemu Koponen , Pankaj Thakkar , Martin Casado , W. Andrew Lambeth
IPC分类号： H04L12/56 , H04L12/54
CPC分类号： H04L41/0893 , G06F11/07 , G06F15/17312 , H04L12/4633 , H04L41/0816 , H04L41/0853 , H04L41/0896 , H04L45/00 , H04L45/586 , H04L47/783 , H04L49/00 , H04L49/1546 , H04L49/3063 , H04L49/70 , H04L61/2007 , H04L61/6022
摘要： Some embodiments provide a distributed control system for controlling managed switching elements of a network. The distributed control system comprises a first network virtualizer for converting a first set of input logical forwarding plane data to a first set of output physical control plane data. It also includes a second network virtualizer for converting a second set of input logical forwarding plane data to a second set of output physical control plane data. In some embodiments, the physical control plane data is translated into physical forwarding behaviors that direct the forwarding of data by the managed switching elements.
摘要翻译：一些实施例提供用于控制网络的被管理交换单元的分布式控制系统。分布式控制系统包括用于将第一组输入逻辑转发平面数据转换为第一组输出物理控制平面数据的第一网络虚拟器。它还包括用于将第二组输入逻辑转发平面数据转换为第二组输出物理控制平面数据的第二网络虚拟器。在一些实施例中，物理控制平面数据被转换成物理转发行为，其指导被管理的交换元件转发数据。

4. 发明申请

US20130058252A1 MESH ARCHITECTURES FOR MANAGED SWITCHING ELEMENTS 有权
标题翻译：管理开关元件的MESH架构
公开(公告)号：US20130058252A1
公开(公告)日：2013-03-07
申请号：US13219533
申请日：2011-08-26
申请人： Martin Casado , Keith E. Amidon , Teemu Koponen , W. Andrew Lambeth
发明人： Martin Casado , Keith E. Amidon , Teemu Koponen , W. Andrew Lambeth
IPC分类号： H04L12/28
CPC分类号： H04L41/0893 , G06F11/07 , G06F15/17312 , H04L12/4633 , H04L41/0816 , H04L41/0853 , H04L41/0896 , H04L45/00 , H04L45/586 , H04L47/783 , H04L49/00 , H04L49/1546 , H04L49/3063 , H04L49/70 , H04L61/2007 , H04L61/6022
摘要： Some embodiments provide a network architecture that includes several lower level managed switching elements for forwarding network data to several of network hosts. The network architecture includes a set of higher level managed switching elements. The several lower level managed switching elements and the set of higher level managed switching elements implement several logical datapath sets. Communication channels are established among the several lower level managed switching elements and the set of higher level managed switching elements based on a mesh topology.
摘要翻译：一些实施例提供了一种网络架构，其包括用于将网络数据转发到多个网络主机的多个下级管理交换单元。网络架构包括一组更高级别的托管交换元件。几个较低级别的管理交换元件和一组较高级别的受管交换元件实现了几个逻辑数据路径集。在几个较低级别的管理交换元件和基于网格拓扑的一组较高级别的被管理交换元件之间建立通信信道。

5. 发明授权

US08028071B1 TCP/IP offload engine virtualization system and methods 有权
标题翻译： TCP / IP卸载引擎虚拟化系统和方法
公开(公告)号：US08028071B1
公开(公告)日：2011-09-27
申请号：US11705842
申请日：2007-02-14
申请人： Mallik Mahalingam , Ramu Arunachalam , Walter Andrew Lambeth
发明人： Mallik Mahalingam , Ramu Arunachalam , Walter Andrew Lambeth
IPC分类号： G06F15/16 , G06F9/455 , H04L12/28
CPC分类号： G06F9/45558 , G06F2009/45595 , H04L69/32
摘要： A virtual computer system enabling dynamic, aggregated use of multiple TCP/IP offload engines (TOEs) by the set of guest computer systems hosted on the virtual computer system. Each of the guest computer systems includes an offload selection switch and the associated virtual machine monitor includes a first virtual context component. Second virtual context components are associated with a set of TCP/IP stacks and TOEs and interoperate with the first virtual context components to establish a virtual routing of network connections between the offload selection switches and the TOEs. The virtual context mapping retains the initially requested network connection information as well as the resolved virtual network connection established, thereby allowing the initial network connection request to be internally reapplied as required to accommodate dynamic changes in the network protocol parameters of the TOEs.
摘要翻译：虚拟计算机系统，能够通过托管在虚拟计算机系统上的一组访客计算机系统来动态地，聚合地使用多个TCP / IP卸载引擎（TOE）。每个客户计算机系统包括卸载选择开关，并且相关联的虚拟机监视器包括第一虚拟上下文组件。第二虚拟上下文组件与一组TCP / IP堆栈和TOE相关联，并与第一虚拟上下文组件互操作以在卸载选择交换机和TOE之间建立网络连接的虚拟路由。虚拟上下文映射保留初始请求的网络连接信息以及所建立的解析的虚拟网络连接，从而允许根据需要在内部重新应用初始网络连接请求，以适应TOE的网络协议参数的动态变化。

6. 发明授权

US07831739B2 Partial copying of data to transmit buffer for virtual network device 有权
标题翻译：将数据部分复制到虚拟网络设备的发送缓冲区
公开(公告)号：US07831739B2
公开(公告)日：2010-11-09
申请号：US12639590
申请日：2009-12-16
申请人： Walter Andrew Lambeth , Mallik Mahalingam
发明人： Walter Andrew Lambeth , Mallik Mahalingam
IPC分类号： G06F15/173
CPC分类号： G06F9/45558 , G06F2009/45595
摘要： In a virtualized computer system, a network frame is transmitted from a virtual machine using a network interface device, possibly through a virtual switch, by copying only a part of the network frame to the transmit buffers that have pre-translated mappings from guest physical addresses to hypervisor virtual addresses and to machine addresses. The length of the part of the network frame that is copied to the transmit buffers may be variable.
摘要翻译：在虚拟化计算机系统中，可以通过虚拟交换机使用网络接口设备从虚拟机发送网络帧，通过仅将网络帧的一部分复制到具有来自客体物理地址的预翻译映射的发送缓冲器到管理程序虚拟地址和机器地址。复制到发送缓冲区的网络帧的一部分的长度可能是可变的。

7. 发明申请

US20090292858A1 Distributed Virtual Switch for Virtualized Computer Systems 有权
标题翻译：虚拟化计算机系统分布式虚拟交换机
公开(公告)号：US20090292858A1
公开(公告)日：2009-11-26
申请号：US12126777
申请日：2008-05-23
申请人： Andrew Lambeth , Shudong Zhou
发明人： Andrew Lambeth , Shudong Zhou
IPC分类号： G06F12/08
CPC分类号： H04L49/70 , G06F9/45558 , G06F2009/4557 , G06F2009/45575 , G06F2009/45579 , G06F2009/45595 , H04L29/12839 , H04L61/6022
摘要： A method for persisting a state of a virtual port in a virtualized computer system is described. A distributed virtual port (DVport) is stored in a persistent storage location, the DVport comprising a state of a corresponding virtual port and configuration settings of the virtual port. In addition, an association between the virtual port and the virtual network interface card (VNIC) connected to the virtual port is stored. When a virtual machine corresponding to the VNIC is restarted, the state from the DVport is restored to a new virtual port from the persistent storage location.
摘要翻译：描述了用于在虚拟化计算机系统中保持虚拟端口的状态的方法。分布式虚拟端口（DVport）存储在永久存储位置，DVport包括对应虚拟端口的状态和虚拟端口的配置设置。另外，虚拟端口与连接到虚拟端口的虚拟网络接口卡（VNIC）之间的关联被存储。当重新启动对应于VNIC的虚拟机时，DVport的状态将从永久存储位置恢复到新的虚拟端口。

8. 发明授权

US09363210B2 Distributed network control system with one master controller per logical datapath set 有权
标题翻译：分布式网络控制系统，每个逻辑数据路径集合有一个主控制器
公开(公告)号：US09363210B2
公开(公告)日：2016-06-07
申请号：US13219578
申请日：2011-08-26
申请人： W. Andrew Lambeth , Teemu Koponen , Martin Casado
发明人： W. Andrew Lambeth , Teemu Koponen , Martin Casado
IPC分类号： H04L12/28 , H04L12/54 , H04L12/66 , G06F15/16 , G06F17/30 , H04L12/931 , H04L12/933 , H04L12/713 , H04L12/24 , H04L12/935 , G06F15/173 , H04L12/46 , H04L12/911 , G06F11/07
CPC分类号： H04L41/0893 , G06F11/07 , G06F15/17312 , H04L12/4633 , H04L41/0816 , H04L41/0853 , H04L41/0896 , H04L45/00 , H04L45/586 , H04L47/783 , H04L49/00 , H04L49/1546 , H04L49/3063 , H04L49/70 , H04L61/2007 , H04L61/6022
摘要： A network control system for managing a plurality of managed switching elements that implement a plurality of logical datapath sets. The network control system includes a first controller instance that manages the logical datapath sets by generating, based on logical forwarding plane data, physical control plane data. The network control system also includes a second controller instance that manages the managed switching elements by receiving physical control plane data and sending the physical control plane data to the switching elements.
摘要翻译：一种用于管理实现多个逻辑数据路径集合的多个被管理的交换单元的网络控制系统。网络控制系统包括通过基于逻辑转发平面数据生成物理控制平面数据来管理逻辑数据路径集的第一控制器实例。网络控制系统还包括通过接收物理控制平面数据并将物理控制平面数据发送到交换元件来管理被管理的交换单元的第二控制器实例。

9. 发明授权

US09112811B2 Managed switching elements used as extenders 有权
标题翻译：用作扩展器的管理型开关元件
公开(公告)号：US09112811B2
公开(公告)日：2015-08-18
申请号：US13218471
申请日：2011-08-26
申请人： Martin Casado , Paul Fazzone , Keith E. Amidon , W. Andrew Lambeth , Teemu Koponen , Paul S. Ingram
发明人： Martin Casado , Paul Fazzone , Keith E. Amidon , W. Andrew Lambeth , Teemu Koponen , Paul S. Ingram
IPC分类号： H04L12/28 , H04L12/66 , G06F15/16 , G06F15/173 , H04L12/931 , H04L12/933 , H04L12/713 , H04L12/54 , H04L12/24 , H04L12/935 , G06F11/07
CPC分类号： H04L41/0893 , G06F11/07 , G06F15/17312 , H04L12/4633 , H04L41/0816 , H04L41/0853 , H04L41/0896 , H04L45/00 , H04L45/586 , H04L47/783 , H04L49/00 , H04L49/1546 , H04L49/3063 , H04L49/70 , H04L61/2007 , H04L61/6022
摘要： Some embodiments provide a network system that includes a first network and a second network. The first network includes several unmanaged switching elements. The second network includes several managed switching elements. The network system includes a particular managed switching element for communicating network data between the first and second networks.
摘要翻译：一些实施例提供了包括第一网络和第二网络的网络系统。第一个网络包括几个非托管交换元件。第二个网络包括几个管理的交换元件。网络系统包括用于在第一和第二网络之间传送网络数据的特定托管交换元件。

10. 发明授权

US09106587B2 Distributed network control system with one master controller per managed switching element 有权
标题翻译：分布式网络控制系统，每个托管交换元件具有一个主控制器
公开(公告)号：US09106587B2
公开(公告)日：2015-08-11
申请号：US13218427
申请日：2011-08-25
申请人： Teemu Koponen , Martin Casado , Jeremy Stribling , Natasha Gude , W. Andrew Lambeth
发明人： Teemu Koponen , Martin Casado , Jeremy Stribling , Natasha Gude , W. Andrew Lambeth
IPC分类号： H04L12/28 , H04L12/931 , H04L12/933 , H04L12/713 , H04L12/54 , H04L12/24 , H04L12/935 , G06F15/173 , G06F11/07
CPC分类号： H04L41/0893 , G06F11/07 , G06F15/17312 , H04L12/4633 , H04L41/0816 , H04L41/0853 , H04L41/0896 , H04L45/00 , H04L45/586 , H04L47/783 , H04L49/00 , H04L49/1546 , H04L49/3063 , H04L49/70 , H04L61/2007 , H04L61/6022
摘要： A network control system for managing several switching elements. The network control system includes first and second controllers for generating data for managing first and second sets of switching elements. The first controller is further for serving as a master controller of the first set of switching elements. The second controller is further for serving as a master controller of the second set of switching elements. The master controller for a particular set of switching elements is the only controller that is allowed to propagate data to the particular set of switching elements data for managing the particular set of switching elements.
摘要翻译：一种用于管理多个交换元件的网络控制系统。网络控制系统包括用于生成用于管理第一和第二组交换元件的数据的第一和第二控制器。第一控制器还用作第一组开关元件的主控制器。第二控制器进一步用作第二组开关元件的主控制器。用于特定开关元件组的主控制器是允许将数据传播到用于管理特定开关元件组的特定开关元件组的数据的唯一控制器。

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