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    DISTRIBUTED LOGICAL L3 ROUTING
    1.
    发明公开
    DISTRIBUTED LOGICAL L3 ROUTING 审中-公开

    公开(公告)号：EP3605969A1

    公开(公告)日：2020-02-05

    申请号：EP19199021.7

    申请日：2012-08-17

    申请人： Nicira Inc.

    发明人： KOPONEN, Teemu ,  CASADO, Martin ,  GROSS IV, Jesse ,  ZHANG, Ronghua ,  MAHAJAN, Mehak ,  AMIDON, Keith ,  WENDLANDT, Daniel ,  PETTIT, Justin ,  THAKKAR, Pankaj

    IPC分类号： H04L12/715

    摘要： A 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.

    HIERARCHICAL CONTROLLER CLUSTERS FOR INTERCONNECTING DIFFERENT LOGICAL DOMAINS
    2.
    发明授权
    HIERARCHICAL CONTROLLER CLUSTERS FOR INTERCONNECTING DIFFERENT LOGICAL DOMAINS 有权

    公开(公告)号：EP2745473B1

    公开(公告)日：2018-09-19

    申请号：EP12823387.1

    申请日：2012-08-17

    申请人： Nicira, Inc.

    发明人： KOPONEN, Teemu ,  CASADO, Martin ,  THAKKAR, Pankaj ,  WENDLANDT, Daniel J. ,  ZHANG, Ronghua

    IPC分类号： H04L12/54 ,  H04L12/24 ,  H04L12/715

    CPC分类号： H04L12/66 ,  H04L41/044 ,  H04L45/04

    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.

    TRACING NETWORK PACKETS AT A MANAGED FORWARDING ELEMENT
    3.
    发明公开
    TRACING NETWORK PACKETS AT A MANAGED FORWARDING ELEMENT 审中-公开

    公开(公告)号：EP3355534A1

    公开(公告)日：2018-08-01

    申请号：EP18162466.9

    申请日：2014-05-01

    申请人： Nicira Inc.

    发明人： GANICHEV, Igor ,  THAKKAR, Pankaj ,  KOPONEN, Teemu ,  DONG, Mo

    IPC分类号： H04L12/717 ,  H04L12/931 ,  H04L12/26

    摘要： A process is performed by controller cluster 2035 which receives trace requests from a user and generates trace packets. A command is received (1) to insert a test packet marked for a trace operation with specified source and destination addresses on a set of logical forwarding elements 2090, 2092 into the physical network implementing the logical forwarding elements. The request specifies a source logical port that maps to a VM connected to the MFE 2090 and a destination logical port that maps to a VM connected to another MFE (e.g., MFE 2092). In response to the request, the controller cluster 2035 generates a packet 2002 and sends (2) this to the MFE 2090. When the MFE 2090 receives the packet 2002, the MFE 2090 stores a register bit indicating that the packet is marked for a trace operation. The MFE 2090 then performs an ingress context mapping 2005 on the packet. In the second stage 2010 of processing pipeline 2000, a set of logical operations are performed on the packets by the flow entries that implement logical switch 2045 at the MFE 2090. In the third stage 2015, a set of logical forwarding operations are performed on the packets by the flow entries that implement logical router 2055 at the MFE 2090. The MFE 2090 sends (4) an observation for each of the L3 operations of the logical switch 2045. In the fourth stage 2020, an additional set of logical forwarding operations are performed on the packets by the flow entries that implement logical switch 2050 at the MFE 2090. The MFE 2090 sends (shown by the encircled 5) an observation for each of the L2 operations of the logical switch 2050. At the sixth stage 2025, a set of operations to implement physical forwarding of the packet is performed. The MFE 2090 sends (6) one or more observation messages to the controller cluster 2035 for the set of physical operations performed at the fourth stage 2040 when the register bit indicates that the packet is marked for the trace operation.

    TRACING NETWORK PACKETS BY A CLUSTER OF NETWORK CONTROLLERS
    4.
    发明授权
    TRACING NETWORK PACKETS BY A CLUSTER OF NETWORK CONTROLLERS 有权
    通过网络控制器集群追踪网络包

    公开(公告)号：EP3020169B1

    公开(公告)日：2018-04-18

    申请号：EP14730014.9

    申请日：2014-05-01

    申请人： Nicira Inc.

    发明人： GANICHEV, Igor ,  THAKKAR, Pankaj ,  KOPONEN, Teemu ,  DONG, Mo

    IPC分类号： H04L12/717 ,  H04L12/931

    CPC分类号： H04L43/10 ,  G06F11/07 ,  G06F21/60 ,  H04L12/4633 ,  H04L45/42 ,  H04L45/586 ,  H04L49/70

    摘要： Some embodiments provide a method for a first network controller that manages a set of logical forwarding elements implemented in several managed forwarding elements. The method receives a request to trace a specified packet having a particular source on a logical forwarding element. The method generates the packet according to the packet specification. The generated packet includes an indicator that the packet is for a trace operation. The method sends the packet to a second network controller that manages a managed forwarding element associated with the particular source. The method receives a first set of messages regarding operations performed on the packet from a set of network controllers that receives a second set of messages regarding operations performed on the packet from a set of managed forwarding elements that process the packet.

    USING TRANSACTIONS TO COMPUTE AND PROPAGATE NETWORK FORWARDING STATE
    5.
    发明公开
    USING TRANSACTIONS TO COMPUTE AND PROPAGATE NETWORK FORWARDING STATE 审中-公开
    交易数的计算和网络传输状态分发用

    公开(公告)号：EP2955886A1

    公开(公告)日：2015-12-16

    申请号：EP15179381.7

    申请日：2013-04-18

    申请人： Nicira Inc.

    发明人： KOPONEN, Teemu ,  PADMANABHAN, Amar

    IPC分类号： H04L12/715

    摘要： For a controller for managing a network comprising several managed forwarding elements that forward data in the network, a method for configuring a managed forwarding element is described. The method generates a first set of flow entries for defining forwarding behaviors of the managed forwarding element based on a current network policy for a logical network implemented in the several managed forwarding elements. The method sends the first set of flow entries to the managed forwarding element in order for the managed forwarding element to forward data that the managed forwarding element directly receives from an end machine based on the current network policy. The method generates a second set of flow entries for modifying forwarding behaviors of the managed forwarding element based on a new network policy for the logical network. The method sends the second set of flow entries to the managed forwarding element in order for the managed forwarding element to forward the data based on the new network policy.

    摘要翻译： 为用于管理网络，其包括几个管理转发元件做向前网络中的数据的控制器，描述了用于配置管理转发元件的方法。 该方法的基因率基于在几个管理转发元件实现的逻辑网络当前网络策略的管理转发单元转发定义行为的第一组流条目。 该方法将第一组流条目的管理转发元件，以便用于管理转发元件转发的数据所做的管理转发元件直接从在端机器接收基于当前网络策略。 该方法的基因率修改基于所述逻辑网络的新网络策略的管理转发单元的转发行为的第二组流条目。 该方法发送所述第二组流条目的管理转发元件，以便用于管理转发元件转发基于新的网络策略的数据。

    NETWORK VIRTUALIZATION APPARATUS WITH SCHEDULING CAPABILITIES
    10.
    发明授权
    NETWORK VIRTUALIZATION APPARATUS WITH SCHEDULING CAPABILITIES 有权

    公开(公告)号：EP2748990B1

    公开(公告)日：2018-11-21

    申请号：EP12844417.1

    申请日：2012-10-25

    申请人： Nicira Inc.

    发明人： KOPONEN, Teemu ,  THAKKAR, Pankaj

    IPC分类号： H04L12/715 ,  H04L12/751

    CPC分类号： G06Q10/00 ,  H04L45/02 ,  H04L45/64

    摘要： A controller for managing several managed switching elements that forward data in a network is described. The controller includes an interface for receiving input logical control plane data in terms of input events data. The controller includes an input scheduler for (1) categorizing the input events data into different groups based on certain criteria and (2) scheduling supplying of the input event data into a converter based on the groups so that the converter processes a group of input events data together. The controller includes a converter for converting the input logical control plane data to output logical forwarding plane data. The logical forwarding plane data are for subsequent translation into physical control plane data.