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1. 发明授权

US07945436B2 Pass-through and emulation in a virtual machine environment 有权
标题翻译：虚拟机环境中的传递和仿真
公开(公告)号：US07945436B2
公开(公告)日：2011-05-17
申请号：US12179402
申请日：2008-07-24
申请人： Boon Seong Ang , Mallik Mahalingam , Ronghua Zhang , Andrew Lambeth
发明人： Boon Seong Ang , Mallik Mahalingam , Ronghua Zhang , Andrew Lambeth
IPC分类号： G06F9/455
CPC分类号： G06F9/45558 , G06F2009/45579
摘要： A virtual device emulated in software and included in a virtual machine is provided in a virtualized computer system. The virtual device includes an emulation mode and a pass through mode. The emulation mode is used for a first plurality of device operations. The pass through mode is used for a second plurality of device operations. The virtual device is configured to communicate with a physical device and each of the second plurality of device operations are configured to be handled by the physical device. The virtual device also includes a switching logic to switch between the emulation mode and the pass through mode based on a device operation to be performed by the virtual machine of the virtual device.
摘要翻译：在虚拟化计算机系统中提供以软件模拟并且包括在虚拟机中的虚拟设备。虚拟设备包括仿真模式和通过模式。仿真模式用于第一多个设备操作。通过模式用于第二多个设备操作。虚拟设备被配置为与物理设备通信，并且第二多个设备操作中的每一个被配置为由物理设备处理。虚拟设备还包括基于要由虚拟设备的虚拟机执行的设备操作的在仿真模式和通过模式之间切换的切换逻辑。

2. 发明授权

US08677187B2 Performing network core dump without drivers 有权
标题翻译：执行没有驱动程序的网络核心转储
公开(公告)号：US08677187B2
公开(公告)日：2014-03-18
申请号：US13078156
申请日：2011-04-01
申请人： Ronghua Zhang , Saleem Abdulrasool , Mallik Mahalingam , Boon Seong Ang
发明人： Ronghua Zhang , Saleem Abdulrasool , Mallik Mahalingam , Boon Seong Ang
IPC分类号： G06F11/00
CPC分类号： G06F11/0778 , G06F11/0748
摘要： Core dump is performed over a network without relying on network device drivers. Instead of network device drivers, firmware of network devices that is typically used during boot is preserved in memory post-boot, and one or more application program interfaces of the firmware are invoked to perform the network core dump. For ease of implementation, a network bootstrap program that has standard application program interfaces for calling into the firmware of network devices may be invoked when performing core dump over the network.
摘要翻译：核心转储通过网络执行，而不依赖于网络设备驱动程序。代替网络设备驱动程序，通常在引导过程中使用的网络设备的固件将保留在内存后引导中，并且会调用固件的一个或多个应用程序接口来执行网络核心转储。为了便于实现，可以在通过网络执行核心转储时调用具有用于调用网络设备的固件的标准应用程序接口的网络引导程序。

3. 发明授权

US09369426B2 Distributed logical L3 routing 有权
标题翻译：分布式逻辑L3路由
公开(公告)号：US09369426B2
公开(公告)日：2016-06-14
申请号：US13589062
申请日：2012-08-17
申请人： Teemu Koponen , Ronghua Zhang , Martin Casado , Pankaj Thakkar , Jesse E. Gross, IV , Daniel J. Wendlandt , Mehak Mahajan
发明人： Teemu Koponen , Ronghua Zhang , Martin Casado , Pankaj Thakkar , Jesse E. Gross, IV , Daniel J. Wendlandt , Mehak Mahajan
IPC分类号： H04L12/28 , H04L12/26 , H04L12/24 , H04L12/931 , H04L12/46 , H04L29/12 , H04L12/801 , H04L12/803 , H04L12/741 , H04L12/715
CPC分类号： H04L45/74 , H04L41/0803 , H04L45/04 , H04L45/54 , H04L47/12 , H04L47/125 , H04L61/103 , H04L61/256 , H04L61/2592
摘要： A novel method for configuring first and second managed forwarding elements to perform logical L2 switching and L3 routing is described. The method generates a first set of flow entries for configuring the first managed forwarding element to perform logical L2 ingress processing and L3 routing processing. The method generates a second set of flow entries for configuring the second managed forwarding element to performing logical L2 egress processing.
摘要翻译：描述了一种用于配置第一和第二管理转发元件以执行逻辑L2交换和L3路由的新颖方法。该方法生成第一组流条目，用于配置第一管理转发元素以执行逻辑L2入口处理和L3路由处理。该方法生成第二组流条目，用于配置第二管理转发元件以执行逻辑L2出口处理。

4. 发明授权

US08964767B2 Packet processing in federated network 有权
标题翻译：联合网络中的数据包处理
公开(公告)号：US08964767B2
公开(公告)日：2015-02-24
申请号：US13589044
申请日：2012-08-17
申请人： Teemu Koponen , Martin Casado , Pankaj Thakkar , Ronghua Zhang , Daniel J. Wendlandt
发明人： Teemu Koponen , Martin Casado , Pankaj Thakkar , Ronghua Zhang , Daniel J. Wendlandt
IPC分类号： H04L12/26 , H04L12/28 , H04L12/56 , H04L12/54 , G06F15/16 , G06F15/173 , H04L12/66
CPC分类号： H04L12/66 , H04L41/044 , H04L45/04
摘要： Some embodiments provide a novel method for forwarding a packet at a managed switching element in a first domain. The method receives a packet from a local machine. The method encapsulates the packet with a first context identifier that identifies a first logical port of a first logical switching element that couples to machines in both the first domain and a second domain. The first logical port maps to a destination address of the packet. Based on a mapping of the first logical port to a second logical port of a second logical switching element that couples to machines in only the first domain, the method encapsulates the packet with a second context identifier that identifies the second logical port. The method transmits the twice-encapsulated packet out of a port of the managed switching element based on the second context identifier.
摘要翻译：一些实施例提供了一种用于在第一域中的被管理交换元件处转发分组的新颖方法。该方法从本地计算机接收数据包。该方法封装具有标识耦合到第一域和第二域中的机器的第一逻辑交换元件的第一逻辑端口的第一上下文标识符的分组。第一个逻辑端口映射到数据包的目标地址。基于第一逻辑端口到仅耦合到仅在第一域中的机器的第二逻辑交换单元的第二逻辑端口的映射，该方法用识别第二逻辑端口的第二上下文标识符封装分组。该方法基于第二上下文标识符从被管理交换元件的端口发送两次封装的分组。

5. 发明授权

US08958298B2 Centralized logical L3 routing 有权
标题翻译：集中逻辑L3路由
公开(公告)号：US08958298B2
公开(公告)日：2015-02-17
申请号：US13589074
申请日：2012-08-17
申请人： Ronghua Zhang , Pankaj Thakkar , Jesse E. Gross, IV , Justin Pettit , Keith E. Amidon , Daniel J. Wendlandt , Teemu Koponen , Martin Casado
发明人： Ronghua Zhang , Pankaj Thakkar , Jesse E. Gross, IV , Justin Pettit , Keith E. Amidon , Daniel J. Wendlandt , Teemu Koponen , Martin Casado
IPC分类号： H04L1/00 , H04L12/28 , H04L12/58 , G06F15/16 , G06F15/177 , G06F15/173 , H04L29/12 , H04L12/801 , H04L12/803 , H04L12/24 , H04L12/741
CPC分类号： H04L45/74 , H04L41/0803 , H04L45/04 , H04L45/54 , H04L47/12 , H04L47/125 , H04L61/103 , H04L61/256 , H04L61/2592
摘要： A novel method for logically routing a packet between a source machine that is in a first logical domain and a destination machine that is in a second logical domain is described. The method configures a managed switching element as a second-level managed switching element. The method configures a router in a host that includes the second-level managed switching element. The method communicatively couples the second-level managed switching element with the router. The method causes the router to route a packet when the router receives a packet from the first logical domain that is addressed to the second logical domain.
摘要翻译：描述了一种用于在位于第一逻辑域中的源计算机和位于第二逻辑域中的目的地机器之间逻辑路由分组的新颖方法。该方法将管理的交换元件配置为二级管理的交换元件。该方法在包含第二级托管交换元件的主机中配置路由器。该方法将二级管理交换单元与路由器通信地耦合。当路由器接收到从寻址到第二逻辑域的第一逻辑域的分组时，该方法使得路由器路由分组。

6. 发明申请

US20130044752A1 FLOW GENERATION FROM SECOND LEVEL CONTROLLER TO FIRST LEVEL CONTROLLER TO MANAGED SWITCHING ELEMENT 有权
标题翻译：从第二级控制器到第一级控制器到管理的开关元件的流量生成
公开(公告)号：US20130044752A1
公开(公告)日：2013-02-21
申请号：US13589043
申请日：2012-08-17
申请人： Teemu Koponen , Martin Casado , Pankaj Thakkar , Ronghua Zhang , Daniel J. Wendlandt
发明人： Teemu Koponen , Martin Casado , Pankaj Thakkar , Ronghua Zhang , Daniel J. Wendlandt
IPC分类号： H04L12/56
CPC分类号： H04L12/66 , H04L41/044 , H04L45/04
摘要： A network control system that includes a first set of network controllers for (i) receiving a logical control plane definition of a logical switching element that couples to both a first set of network hosts in a first domain and a second set of network hosts in a second domain, (ii) translating the logical control plane definition of the logical switching element into a first set of flow entries in a first logical forwarding plane, and (iii) translating the first set of flow entries into a second set of flow entries in a second logical forwarding plane. The network control system includes a second set of network controllers in the first domain for (i) receiving a portion of the second set of flow entries and (ii) translating the portion of the second set of flow entries into a third set of flow entries in a physical control plane.
摘要翻译：一种网络控制系统，其包括第一组网络控制器，用于（i）接收逻辑交换元件的逻辑控制平面定义，所述逻辑交换元件耦合到第一域中的第一组网络主机和第二组网络主机第二域，（ii）将逻辑交换元件的逻辑控制平面定义转换为第一逻辑转发平面中的第一组流条目，以及（iii）将第一组流条目转换为第二组流条目第二个逻辑转发平面。网络控制系统包括第一域中的第二组网络控制器，用于（i）接收第二组流条目的一部分，以及（ii）将第二组流条目的部分转换成第三组流条目在物理控制平面。

7. 发明申请

US20130044636A1 DISTRIBUTED LOGICAL L3 ROUTING 有权
标题翻译：分销逻辑L3路由
公开(公告)号：US20130044636A1
公开(公告)日：2013-02-21
申请号：US13589062
申请日：2012-08-17
申请人： Teemu Koponen , Ronghua Zhang , Martin Casado , Pankaj Thakkar , Jesse E. Gross, IV , Daniel J. Wendlandt , Mehak Mahajan
发明人： Teemu Koponen , Ronghua Zhang , Martin Casado , Pankaj Thakkar , Jesse E. Gross, IV , Daniel J. Wendlandt , Mehak Mahajan
IPC分类号： H04L12/28
CPC分类号： H04L45/74 , H04L41/0803 , H04L45/04 , H04L45/54 , H04L47/12 , H04L47/125 , H04L61/103 , H04L61/256 , H04L61/2592
摘要： A novel method for configuring first and second managed forwarding elements to perform logical L2 switching and L3 routing is described. The method generates a first set of flow entries for configuring the first managed forwarding element to perform logical L2 ingress processing and L3 routing processing. The method generates a second set of flow entries for configuring the second managed forwarding element to performing logical L2 egress processing.
摘要翻译：描述了一种用于配置第一和第二管理转发元件以执行逻辑L2交换和L3路由的新颖方法。该方法生成第一组流条目，用于配置第一管理转发元素以执行逻辑L2入口处理和L3路由处理。该方法生成第二组流条目，用于配置第二管理转发元件以执行逻辑L2出口处理。

8. 发明授权

US10091028B2 Hierarchical controller clusters for interconnecting two or more logical datapath sets 有权
公开(公告)号：US10091028B2
公开(公告)日：2018-10-02
申请号：US13589035
申请日：2012-08-17
申请人： Teemu Koponen , Martin Casado , Pankaj Thakkar , Ronghua Zhang , Daniel J. Wendlandt
发明人： Teemu Koponen , Martin Casado , Pankaj Thakkar , Ronghua Zhang , Daniel J. Wendlandt
IPC分类号： H04L12/66 , G06F13/00 , H04L12/751 , H04L12/715 , H04L12/24
摘要： Some embodiments provide a novel network control system for managing a set of switching elements in a network. The network control system includes a first set of network controllers for managing a first set of switching elements that enable communication between a first set of machines. The network control system includes a second set of network controllers for managing a second set of switching elements that enable communication between a second set of machines. The second set of switching elements is separate from the first set of switching elements and the second set of machines is separate from the first set of machines. The network control system includes a third set of network controllers for managing the first and second sets of network controllers in order to enable communication between machines in the first set of machines and machines in the second set of machines.

9. 发明授权

US07707345B2 Methods and apparatus for managing deadtime in feedback control queuing system 有权
标题翻译：反馈控制排队系统管理死区时间的方法和装置
公开(公告)号：US07707345B2
公开(公告)日：2010-04-27
申请号：US11431995
申请日：2006-05-11
申请人： Yixin Diao , Sujay Parekh , Maheswaran Surendra , Ronghua Zhang
发明人： Yixin Diao , Sujay Parekh , Maheswaran Surendra , Ronghua Zhang
IPC分类号： G06F13/40
CPC分类号： G06F11/3409 , G06F11/3452 , G06F11/3457
摘要： Techniques for managing feedback control systems are provided. By way of example, a method of controlling performance of a managed system by a controller includes the following steps/operations. The controller issues a control value to the managed system to affect a performance of the managed system. The controller maintains a measurement time period having a variable start time within which the performance of the managed system is measured, such that the control value is given time to take effect on the managed system and a performance metric fed back to the controller from the managed system reflects the effect of the control value on the managed system.
摘要翻译：提供了管理反馈控制系统的技术。作为示例，控制器控制被管理系统的性能的方法包括以下步骤/操作。控制器向受管系统发出控制值以影响受管系统的性能。控制器维持具有可变起始时间的测量时间段，在该时间段内测量被管理系统的性能，使得控制值被给予在受管理系统上生效的时间，以及从被管理的系统反馈给控制器的性能度量系统反映了管理系统对控制值的影响。

10. 发明申请

US20090050476A1 Zr/ZrO2 Electrode and Producing Method Thereof and Integrated High Temperature and High-Pressure Chemical Sensor Composed by the Same 审中-公开
标题翻译： Zr / ZrO2电极及其制造方法及由其组成的高温高压化学传感器
公开(公告)号：US20090050476A1
公开(公告)日：2009-02-26
申请号：US11886663
申请日：2006-03-21
申请人： Ronghua Zhang , Shumin Hu , Xuetong Zhang
发明人： Ronghua Zhang , Shumin Hu , Xuetong Zhang
IPC分类号： G01N27/30 , G01N27/27 , G01N27/407
CPC分类号： G01N27/30 , Y10T29/49117
摘要： The invention involves a Zr/ZrO2 electrode that consists of a piece of Zr wire and a ZrO2 film formed over the surface of the part of the Zr wire for the use of measuring end in the probe section. An insulating layer and a sealing structure are put in place on the non-probe section and the non-conducting wire connection section of said electrode, while the Zr wire at the other end is applied for circuit connection. The invention also provides a type of integrated high-temperature/high-pressure chemical sensors, which includes one Zr/ZrO2 electrode and also 2 to 5 electrodes that can combine with the Zr/ZrO2 electrode to measure pH value, H2 value, H2S value and Eh value in high-temperature/high-pressure conditions, together constructing the integrated chemical sensors capable of measuring at least two kinds of parameters. The electrode and the integrated high-temperature/high-pressure chemical sensors work properly at the temperature range between 0 and 400 under the pressure up to 60 MPa and accurately measure various electrochemical parameters of liquid, displaying working stability and long lifespan. The electrode and chemical sensors can be fitted in high pressure reactors in laboratory for measuring and marking, as well as on detectors for measuring in actual high-temperature/high-pressure environments. The invention also presents the fabrication and construct process of the Zr/ZrO2 electrode.
摘要翻译：本发明涉及一种Zr / ZrO 2电极，其由在一部分Zr线上形成的Zr线和ZrO2膜组成，用于在探针部分中使用测量端。绝缘层和密封结构放置在所述电极的非探针部分和非导线连接部分上，而另一端的Zr线被施加于电路连接。本发明还提供了一种集成的高温高压化学传感器，其包括一个Zr / ZrO 2电极和还可以与Zr / ZrO 2电极结合的2至5个电极，以测量pH值，H 2值，H 2 S值和高温/高压条件下的Eh值，共同构建能够测量至少两种参数的综合化学传感器。电极和集成高温/高压化学传感器在0至400℃的温度范围内，在高达60 MPa的压力下正常工作，可精确测量液体的各种电化学参数，显示工作稳定性和使用寿命长。电极和化学传感器可以安装在实验室用于测量和标记的高压反应器中，以及用于在实际高温/高压环境中测量的检测器。本发明还提出了Zr / ZrO2电极的制造和构造过程。

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