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    Flow Cache Hierarchy
    2.
    发明申请
    Flow Cache Hierarchy 有权
    流缓存层次结构

    公开(公告)号：US20150281098A1

    公开(公告)日：2015-10-01

    申请号：US14574332

    申请日：2014-12-17

    Applicant: Nicira, Inc.

    Inventor： Justin Pettit ,  Teemu Koponen ,  Andy Zhou ,  Benjamin L. Pfaff

    IPC: H04L12/851 ,  H04L12/713 ,  H04L12/721

    CPC classification number: H04L47/2441 ,  G06F12/0811 ,  G06F12/128 ,  G06F2212/283 ,  G06F2212/69 ,  G06F2212/70 ,  H04L45/02 ,  H04L45/38 ,  H04L45/64 ,  H04L45/745 ,  H04L47/827 ,  H04L49/9042

    Abstract: Some embodiments provide a managed forwarding element (MFE that includes a set of flow tables including a first set of flow entries for processing packets received by the MFE. The MFE includes an aggregate cache including a second set of flow entries for processing packets received by the MFE. Each of the flow entries of the second set is for processing packets of multiple data flows. At least a subset of packet header fields of the packets of the multiple data flows have a same set of packet header field values, and a same set of operations is applied to said packets. The MFE includes an exact-match cache including a third set of flow entries for processing packets received by the MFE. Each of the flow entries of the third set is for processing packets for a single data flow having a unique set of packet header field values.

    Abstract translation: 一些实施例提供了一种管理转发元件（MFE，其包括一组流表，其包括用于处理由MFE接收的分组的第一组流条目，MFE包括聚合高速缓存，包括第二组流条目，用于处理由 MFE。第二组的每个流条目用于处理多个数据流的分组，多个数据流的分组的分组报头字段的至少一个子集具有相同的分组报头字段值集合，并且相同的集合 所述MFE包括精确匹配高速缓存，其包括用于处理由MFE接收的分组的第三组流条目，第三组的每个流条目用于处理单个数据流的分组，所述单个数据流具有 一组唯一的包头字段值。

    Processing packets according to hierarchy of flow entry storages
    3.
    发明授权
    Processing packets according to hierarchy of flow entry storages 有权

    公开(公告)号：US10659373B2

    公开(公告)日：2020-05-19

    申请号：US15978132

    申请日：2018-05-12

    Applicant: Nicira, Inc.

    Inventor： Teemu Koponen ,  Andy Zhou ,  Benjamin L. Pfaff ,  Justin Pettit

    IPC: H04L12/851 ,  H04L12/715 ,  H04L12/751 ,  H04L12/741 ,  G06F12/0811 ,  G06F12/128 ,  H04L12/911 ,  H04L12/861 ,  H04L12/721 ,  G06F12/12

    Abstract: Some embodiments provide a method for processing a packet received by a managed forwarding element. The method performs a series of packet classification operations based on header values of the received packet. The packet classifications operations determine a next destination of the received packet. When the series of packet classification operations specifies to send the packet to a network service that performs payload transformations on the packet, the method (1) assigns a service operation identifier to the packet that identifies the service operations for the network service to perform on the packet, (2) sends the packet to the network service with the service operation identifier, and (3) stores a cache entry for processing subsequent packets without the series of packet classification operations. The cache entry includes the assigned service operation identifier. The network service uses the assigned service operation identifier to process packets without performing its own classification operations.

    Adjusting connection validating control signals in response to changes in network traffic
    6.
    发明授权
    Adjusting connection validating control signals in response to changes in network traffic 有权
    根据网络流量的变化调整连接验证控制信号

    公开(公告)号：US09485185B2

    公开(公告)日：2016-11-01

    申请号：US14069340

    申请日：2013-10-31

    Applicant: Nicira, Inc.

    Inventor： Ethan J. Jackson ,  Keith E. Amidon ,  Andy Zhou

    IPC: H04L12/825 ,  H04L12/26

    CPC classification number: H04L47/25 ,  H04L43/0888 ,  H04L43/0894 ,  H04L43/103

    Abstract: Some embodiments provide a method for reducing the transmission of connection validating control signals when they are not needed. Network entities transmit connection validating control signals over network connections at regular intervals to validate that the network connections and the network entities remain functional. The method monitors data traffic fluctuations on the network connections to determine when connection validating control signals may not be needed. The method reduces unnecessary connection validating control signals in order to optimize the usage of network resources.

    Abstract translation: 一些实施例提供了一种用于在不需要时减少连接验证控制信号的传输的方法。 网络实体通过网络连接定期传输连接验证控制信号，以验证网络连接和网络实体是否保持功能。 该方法监视网络连接上的数据流量波动，以确定何时可能不需要连接验证控制信号。 该方法减少了不必要的连接验证控制信号，以优化网络资源的使用。

    Adjusting connection validating control signals in response to changes in network traffic
    7.
    发明授权
    Adjusting connection validating control signals in response to changes in network traffic 有权

    公开(公告)号：US10484289B2

    公开(公告)日：2019-11-19

    申请号：US15607530

    申请日：2017-05-28

    Applicant: Nicira, Inc.

    Inventor： Ethan J. Jackson ,  Keith E. Amidon ,  Andy Zhou

    IPC: H04L12/26 ,  H04L12/825

    Abstract: Some embodiments provide a method for reducing the transmission of connection validating control signals when they are not needed. Network entities transmit connection validating control signals over network connections at regular intervals to validate that the network connections and the network entities remain functional. The method monitors data traffic fluctuations on the network connections to determine when connection validating control signals may not be needed. The method reduces unnecessary connection validating control signals in order to optimize the usage of network resources.

    Dynamically generating flows with wildcard fields
    8.
    发明授权
    Dynamically generating flows with wildcard fields 有权

    公开(公告)号：US10382324B2

    公开(公告)日：2019-08-13

    申请号：US15443351

    申请日：2017-02-27

    Applicant: Nicira, Inc.

    Inventor： Justin Pettit ,  Ethan J. Jackson ,  Jesse E. Gross, IV ,  Andy Zhou

    IPC: H04L12/721 ,  H04L29/08 ,  H04L12/741

    Abstract: Some embodiments of the invention provide a switching element that receives a packet and processes the packet by dynamically generating a flow entry with a set of wildcard fields. The switching element then caches the flow entry and processes any subsequent packets that have header values that match the flow entry's non-wildcard match fields. In generating the flow, the switching element initially wildcards some of all of match fields and generates a new flow entry by un-wildcarding each match field that was consulted or examined to generate the flow entry.

    ADJUSTING CONNECTION VALIDATING CONTROL SIGNALS IN RESPONSE TO CHANGES IN NETWORK TRAFFIC
    9.
    发明申请
    ADJUSTING CONNECTION VALIDATING CONTROL SIGNALS IN RESPONSE TO CHANGES IN NETWORK TRAFFIC 审中-公开

    公开(公告)号：US20170331750A1

    公开(公告)日：2017-11-16

    申请号：US15607530

    申请日：2017-05-28

    Applicant: Nicira, Inc.

    Inventor： Ethan J. Jackson ,  Keith E. Amidon ,  Andy Zhou

    IPC: H04L12/825 ,  H04L12/26

    Abstract: Some embodiments provide a method for reducing the transmission of connection validating control signals when they are not needed. Network entities transmit connection validating control signals over network connections at regular intervals to validate that the network connections and the network entities remain functional. The method monitors data traffic fluctuations on the network connections to determine when connection validating control signals may not be needed. The method reduces unnecessary connection validating control signals in order to optimize the usage of network resources.

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