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1. 发明申请

US20190007331A1 Openflow Match and Action Pipeline Structure 审中-公开
公开(公告)号：US20190007331A1
公开(公告)日：2019-01-03
申请号：US16125838
申请日：2018-09-10
申请人： Texas Instruments Incorporated
发明人： Patrick W. Bosshart , Hun-Seok Kim
IPC分类号： H04L12/875 , H04L12/741 , H04L12/707 , H04L29/06
CPC分类号： H04L47/56 , H04L45/24 , H04L45/745 , H04L49/1546 , H04L49/3009 , H04L49/3063 , H04L49/9094 , H04L69/22
摘要： An embodiment of the invention includes a packet processing pipeline. The packet processing pipeline includes match and action stages. Each match and action stage in incurs a match delay when match processing occurs and each match and action stage incurs an action delay when action processing occurs. A transport delay occurs between successive match and action stages when data is transferred from a first match and action stage to a second match and action stage.

2. 发明授权

US09231891B2 Deployment of hierarchical managed switching elements 有权
标题翻译：部署分层管理的交换元素
公开(公告)号：US09231891B2
公开(公告)日：2016-01-05
申请号：US13288023
申请日：2011-11-02
申请人： Pankaj Thakkar , Teemu Koponen , Paul S. Ingram , Peter J. Balland, III
发明人： Pankaj Thakkar , Teemu Koponen , Paul S. Ingram , Peter J. Balland, III
IPC分类号： H04L12/28 , H04L12/44 , G06F15/16 , G06F15/173 , H04L12/931 , H04L12/933 , H04L12/713 , H04L12/54 , H04L12/24 , H04L12/935 , 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： Some embodiments provide a method that identifies several higher level switching elements for facilitating lower level switching elements to forward packets among network hosts. The method establishes a set of tunnels among the lower level switching elements and the higher level switching elements. At least one tunnel is established between a lower level switching element and a higher level switching element. For each higher level switching element in the several higher level switching elements, the method identifies a first set of forwarding data that specifies forwarding of packets between the higher level switching element and the several lower level switching elements. For each lower level switching element in the several lower level switching elements, the method identifies a second set of forwarding data that specifies forwarding of packets between the lower level switching element, the several of network hosts, and the several higher level switching elements.
摘要翻译：一些实施例提供了一种识别多个更高级别的交换元件以促进下层交换元件在网络主机之间转发分组的方法。该方法在较低级别的开关元件和较高级别的开关元件之间建立一组隧道。在较低级别的开关元件和较高级别的开关元件之间建立至少一个通道。对于多个较高级别的交换单元中的每个较高级别的交换单元，该方法识别第一组转发数据，该第一组转发数据指定在较高级别的开关元件和多个较低级别的开关元件之间转发分组。对于多个下层交换单元中的每个下级交换单元，该方法识别第二组转发数据，该第二组转发数据指定在下层交换单元，若干网络主机与多个较高级别的交换单元之间转发分组。

3. 发明授权

US08817621B2 Network virtualization apparatus 有权
标题翻译：网络虚拟化设备
公开(公告)号：US08817621B2
公开(公告)日：2014-08-26
申请号：US13177539
申请日：2011-07-06
申请人： Martin Casado , Teemu Koponen
发明人： Martin Casado , Teemu Koponen
IPC分类号： H04L12/26 , H04L12/54 , G06F15/173 , G06F12/10
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 virtualization apparatus for managing a plurality of managed switching elements that forward data in a network. The network virtualization apparatus comprises a controller for converting logical control plane data to logical forwarding plane data. It also includes a virtualizer for converting the logical forwarding plane data to physical control plane data. In some embodiments, the physical control plane data is subsequently translated into physical forwarding plane data that direct the forwarding of data by the managed switching elements.
摘要翻译：一些实施例提供一种用于管理转发网络中的数据的多个被管理交换单元的网络虚拟化装置。网络虚拟化装置包括用于将逻辑控制平面数据转换为逻辑转发平面数据的控制器。它还包括用于将逻辑转发平面数据转换为物理控制平面数据的虚拟器。在一些实施例中，物理控制平面数据随后被转换成物理转发平面数据，其指导被管理的交换元件转发数据。

4. 发明申请

US20140189327A1 ACKNOWLEDGEMENT FORWARDING 有权
标题翻译：致谢
公开(公告)号：US20140189327A1
公开(公告)日：2014-07-03
申请号：US13730616
申请日：2012-12-28
申请人： TELEFONAKTIEBOLAGET L M ERICSSON (PUBL)
发明人： MICHAEL FENG , EDWARD HO , EDMUND C. CHEN , ROBERT HATHAWAY
IPC分类号： G06F9/38
CPC分类号： G06F9/38 , H04L49/00 , H04L49/1546
摘要： A method for processing data packets in a pipeline and executed by a network processor. The pipeline includes a plurality of logical blocks, each logical block configured to process one stage of the pipeline. Each data packet includes a descriptor and a data. The network processor is coupled to a resource for storing the data. The method reduces latency and enables non-blocking processing of data packets by forwarding a unique identification of a write request from a first logical block to a subsequent second logical block in the pipeline, the write request to modify the data in the resource. The method includes receiving the descriptor for processing at the first logical block, generating the write request and the unique identification for the write request, transmitting the write request to the resource, and transmitting the unique identification towards the second logical block before an acknowledgement is returned by the resource.
摘要翻译：一种用于处理流水线中并由网络处理器执行的数据分组的方法。流水线包括多个逻辑块，每个逻辑块被配置为处理流水线的一个级。每个数据包包括描述符和数据。网络处理器耦合到用于存储数据的资源。该方法通过将写入请求的唯一标识从第一逻辑块转发到流水线中的后续第二逻辑块，从而减少等待时间并且使得能够对数据分组进行非阻塞处理，该写请求修改资源中的数据。该方法包括在第一逻辑块处接收用于处理的描述符，产生用于写入请求的写入请求和唯一标识，向该资源发送写入请求，以及在返回确认之前向第二逻辑块发送该唯一标识。由资源。

5. 发明授权

US08761036B2 Network control apparatus and method with quality of service controls 有权
标题翻译：具有服务质量控制的网络控制装置和方法
公开(公告)号：US08761036B2
公开(公告)日：2014-06-24
申请号：US13177545
申请日：2011-07-06
申请人： Bryan J. Fulton , Paul S. Ingram , Pankaj Thakkar
发明人： Bryan J. Fulton , Paul S. Ingram , Pankaj Thakkar
IPC分类号： H04L12/26 , H04L12/54 , G06F15/173
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 application of some embodiments allows a user to enable a logical switching element for Quality of Service (QoS). QoS in some embodiments is a technique to apply to a particular logical port of a logical switching element such that the switching element can guarantee a certain level of performance to network data that a machine sends through the particular logical port. The control application of some embodiments receives user inputs that specify a particular logical switch to enable for QoS. The control application may additionally receive performance constraints data. The control application in some embodiments formats the user inputs into logical control plane data. The control application in some embodiments then converts the logical control plane data into logical forwarding data that specify QoS functions.
摘要翻译：一些实施例的控制应用允许用户启用用于服务质量（QoS）的逻辑交换元件。一些实施例中的QoS是应用于逻辑交换元件的特定逻辑端口的技术，使得交换元件可以保证机器通过特定逻辑端口发送的网络数据的一定水平的性能。一些实施例的控制应用接收指定特定逻辑交换机以使能QoS的用户输入。控制应用可以另外接收性能约束数据。在一些实施例中的控制应用将用户输入格式化成逻辑控制平面数据。一些实施例中的控制应用随后将逻辑控制平面数据转换为指定QoS功能的逻辑转发数据。

6. 发明授权

US08718070B2 Distributed network virtualization apparatus and method 有权
标题翻译：分布式网络虚拟化设备及方法
公开(公告)号：US08718070B2
公开(公告)日：2014-05-06
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： H04L12/28 , H04L12/54 , G06F15/16 , G06F15/173
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。

7. 发明授权

US08638665B2 Router, information processing device having said router, and packet routing method 有权
标题翻译：路由器，具有所述路由器的信息处理设备和分组路由方法
公开(公告)号：US08638665B2
公开(公告)日：2014-01-28
申请号：US12935035
申请日：2009-04-30
申请人： Masamichi Takagi , Sunao Torii
发明人： Masamichi Takagi , Sunao Torii
IPC分类号： G06F11/00
CPC分类号： H04L45/00 , H04L45/60 , H04L49/109 , H04L49/1546 , H04L49/251
摘要： A router includes: a flit arrival time management section that records flit arrival time which is the time at which the packet is received for the first time, transmission interval of the packet which are acquired from a control packet transmitted prior to the first transmission of a packet and input and output channels of the control packet and requires a crossbar section for an output channel from which the packet is supposed to be output before the flit arrival time; a switch assignment section that performs arbitration on the output channel request and performs input/output connection relationship setting processing; and a switch assignment verification section that verifies whether a result of the input/output connection relationship setting processing coincides with the actual routing of the packet. The cross bar section performs switching of the arriving packet using a result of the input/output connection relationship processing.
摘要翻译：路由器包括：飞行到达时间管理部，其记录作为第一次接收分组的时间的飞行到达时间，从在第一次发送之前发送的控制分组获取的分组的发送间隔分组和控制分组的输入和输出通道，并且需要用于输出通道的横截面部分，在该输出通道之前，应该在该飞行器到达时间之前输出该分组; 开关分配单元，对所述输出通道请求进行仲裁，并进行输入/输出连接关系设定处理; 以及开关分配验证部，其验证输入/输出连接关系设置处理的结果是否与分组的实际路由一致。横杆部分使用输入/输出连接关系处理的结果来执行到达的分组的切换。

8. 发明申请

US20130060940A1 NETWORK VIRTUALIZATION 有权
标题翻译：网络虚拟化
公开(公告)号：US20130060940A1
公开(公告)日：2013-03-07
申请号：US13177536
申请日：2011-07-06
申请人： Teemu Koponen , Martin Casado , Paul S. Ingram , W. Andrew Lambeth , Peter J. Balland, III , Keith E. Amidon , Daniel J. Wendlandt
发明人： Teemu Koponen , Martin Casado , Paul S. Ingram , W. Andrew Lambeth , Peter J. Balland, III , Keith E. Amidon , Daniel J. Wendlandt
IPC分类号： G06F15/16
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 of the invention provide a robust scaling-out of network functionality by providing a software layer, called the network hypervisor, that sits between the network forwarding functions (i.e., the forwarding plane) and the network control interfaces (i.e., the control plane). The network hypervisor of some embodiments provides a logical abstraction of the network's forwarding functionality, so that network operators make their control decisions in terms of this abstraction, independent of the details of the underlying networking hardware. The network hypervisor of some embodiments may then “compile” commands placed against this abstraction into configurations of the underlying hardware. Accordingly, in some embodiments, there are two design challenges: (1) the choice of the network abstraction, and (2) the technology needed to compile the logical “abstract” controls into low-level configurations.
摘要翻译：本发明的一些实施例通过提供位于网络转发功能（即，转发平面）和网络控制接口（即，控制平面）之间的软件层（称为网络管理程序）来提供网络功能的鲁棒扩展）。一些实施例的网络管理程序提供了网络的转发功能的逻辑抽象，使得网络运营商根据该抽象而进行控制决策，而与底层网络硬件的细节无关。一些实施例的网络管理程序可以随后将针对该抽象设置的命令编译成底层硬件的配置。因此，在一些实施例中，存在两个设计挑战：（1）网络抽象的选择，以及（2）将逻辑抽象控制编译成低级配置所需的技术。

9. 发明申请

US20130060817A1 METHOD AND APPARATUS FOR INTERACTING WITH A NETWORK INFORMATION BASE IN A DISTRIBUTED NETWORK CONTROL SYSTEM WITH MULTIPLE CONTROLLER INSTANCES 有权
标题翻译：在具有多个控制器实时的分布式网络控制系统中与网络信息库相互交互的方法和装置
公开(公告)号：US20130060817A1
公开(公告)日：2013-03-07
申请号：US13219557
申请日：2011-08-26
申请人： Teemu Koponen , Martin Casado , Jeremy Stribling , Natasha Gude
发明人： Teemu Koponen , Martin Casado , Jeremy Stribling , Natasha Gude
IPC分类号： G06F17/30 , G06F15/16
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 including several controllers for managing several switching elements. A first controller registers a second controller for receiving a notification when a data tuple changes in a network information base (NIB) storage of the first controller that stores data for managing a set of switching elements. The first controller changes the data tuple in the NIB. The first controller sends the notification to the second controller of the change to the data tuple in the NIB. The first and second controllers operate on two different computing devices. Each controller receives logical control plane data for specifying logical datapath sets and converts the logical control plane data to physical control plane data for enabling the switching elements to implement the logical datapath sets.
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。当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改变时，第一控制器注册用于接收通知的第二控制器。第一个控制器更改NIB中的数据元组。第一控制器向第二控制器发送对NIB中的数据元组的更改的通知。第一和第二控制器在两个不同的计算设备上运行。每个控制器接收用于指定逻辑数据路径集合的逻辑控制平面数据，并将逻辑控制平面数据转换为物理控制平面数据，以使切换元件能够实现逻辑数据路径集。

10. 发明申请

US20130060737A1 SECONDARY STORAGE ARCHITECTURE FOR A NETWORK CONTROL SYSTEM THAT UTILIZES A PRIMARY NETWORK INFORMATION BASE 有权
标题翻译：网络控制系统的二级存储架构，利用一个主要的网络信息库
公开(公告)号：US20130060737A1
公开(公告)日：2013-03-07
申请号：US13177537
申请日：2011-07-06
申请人： Teemu Koponen , Martin Casado , Jeremy Stribling , Natasha Gude
发明人： Teemu Koponen , Martin Casado , Jeremy Stribling , Natasha Gude
IPC分类号： G06F17/30
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 system for managing several switching elements. The system includes a network information base (NIB) data structure for serving as a primary storage structure for storing data for managing the several switching elements. The system includes a secondary storage structure for storing a copy of a set of data stored in the primary storage structure for managing the several the switching elements.
摘要翻译：一些实施例提供了一种用于管理若干开关元件的系统。该系统包括用作主存储结构的网络信息库（NIB）数据结构，用于存储用于管理多个交换元件的数据。该系统包括用于存储存储在主存储结构中用于管理多个开关元件的一组数据的副本的辅助存储结构。

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