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31. 发明申请

US20190190734A1 DISTRIBUTED MULTICAST BY ENDPOINTS 审中-公开
公开(公告)号：US20190190734A1
公开(公告)日：2019-06-20
申请号：US16270593
申请日：2019-02-08
申请人： Nicira, Inc.
发明人： Jianjun Shen , Alexander Tessmer , Ram Dular Singh , Hua Wang , Da Wan
IPC分类号： H04L12/18 , H04L12/46
CPC分类号： H04L12/1886 , H04L12/185 , H04L12/1854 , H04L12/46 , H04L12/4641 , H04L45/16
摘要： A novel method of conducting multicast traffic in a network is provided. The network includes multiple endpoints that receive messages from the network and generate messages for the network. The endpoints are located in different segments of the network, each segment including one or more of the endpoints. For a source endpoint to replicate a particular message (e.g., a data packet) for all endpoints belonging to a particular replication group (i.e., multicast group) within the network, the source endpoint replicates the particular message to each endpoint within the source endpoint's own segment and to a proxy endpoint in each of the other segments. Each proxy endpoint in turn replicates the particular message to all endpoints belonging to the particular replication group within the proxy endpoint's own segment.

32. 发明申请

US20180248743A1 MANAGEMENT AND CONTROL SYSTEM LOGICAL NETWORK 审中-公开
公开(公告)号：US20180248743A1
公开(公告)日：2018-08-30
申请号：US15639927
申请日：2017-06-30
申请人： Nicira, Inc.
发明人： Ganesan Chandrashekhar , Alexander Tessmer
IPC分类号： H04L12/24 , G05B19/042
CPC分类号： H04L41/046 , G05B19/0423 , G05B2219/25022 , H04L41/0806
摘要： Some embodiments provide a method for connecting a host machine to a management and control system (MCS) logical network. The method of some embodiments receives, at a managed forwarding element of the host machine, data that identifies a bootstrap agent. The method of some such embodiments receives this data once the host machine is booted up. The method connects to the agent to receive configuration data for the MCS logical network from the agent. The method uses the configuration data received from the agent to connect to the MCS logical network. After connecting to the MCS logical network, the method receives the necessary configuration data for at least one additional logical network (e.g., a guest logical network) from a set of control machines that is also connected to the MCS logical network.

33. 发明授权

US09887851B2 Distributed multicast by endpoints 有权
公开(公告)号：US09887851B2
公开(公告)日：2018-02-06
申请号：US15232621
申请日：2016-08-09
申请人： Nicira, Inc.
发明人： Jianjun Shen, IV , Alexander Tessmer , Ram Dular Singh , Hua Wang , Da Wan
IPC分类号： H04L12/18 , H04L12/46 , H04L12/761
CPC分类号： H04L12/1886 , H04L12/185 , H04L12/1854 , H04L12/46 , H04L12/4641 , H04L45/16
摘要： A novel method of conducting multicast traffic in a network is provided. The network includes multiple endpoints that receive messages from the network and generate messages for the network. The endpoints are located in different segments of the network, each segment including one or more of the endpoints. For a source endpoint to replicate a particular message (e.g., a data packet) for all endpoints belonging to a particular replication group (i.e., multicast group) within the network, the source endpoint replicates the particular message to each endpoint within the source endpoint's own segment and to a proxy endpoint in each of the other segments. Each proxy endpoint in turn replicates the particular message to all endpoints belonging to the particular replication group within the proxy endpoint's own segment.

34. 发明授权

US09794079B2 Replicating broadcast, unknown-unicast, and multicast traffic in overlay logical networks bridged with physical networks 有权
公开(公告)号：US09794079B2
公开(公告)日：2017-10-17
申请号：US14231245
申请日：2014-03-31
申请人： Nicira, Inc.
发明人： Alexander Tessmer , Mukesh Hira , Rajiv Krishnamurthy , Ram Dular Singh , Xuan Zhang , Hua Wang
IPC分类号： H04L12/28 , H04L12/24 , G06F15/173 , H04L12/18 , H04L12/46
CPC分类号： H04L12/18 , H04L12/4641
摘要： A novel method for performing replication of messages in a network that bridges one or more physical networks to an overlay logical network is provided. A physical gateway provides bridging between network nodes of a physical network and virtual machines in the overlay logical network by serving as an endpoint of the overlay logical network. The physical gateway does not replicate messages from the bridged physical network to destination endpoints in the overlay logical network directly, but instead tunnels the message-to-be-replicated to a designated tunnel endpoint in the overlay logical network. The designated tunnel endpoint in turn replicates the message that was tunneled to it to other endpoints in the overlay logical network.

35. 发明授权

US09602392B2 Connectivity segment coloring 有权
公开(公告)号：US09602392B2
公开(公告)日：2017-03-21
申请号：US14133524
申请日：2013-12-18
申请人： Nicira, Inc.
发明人： Alexander Tessmer , Ram Dular Singh , Ganesan Chandrashekhar
IPC分类号： H04L12/761 , H04L12/46
CPC分类号： H04L45/16 , H04L12/462 , H04L12/4633 , H04L12/4641 , H04L45/02
摘要： A novel method for fully utilizing the multicast or broadcast capability of a physical network is provided. The method identifies segments of the network within which broadcast traffic, multicast traffic, or traffic to unknown recipients (BUM traffic) is allowed or enabled. The identified segment encompasses parts of the network that the BUM traffic is able reach while excluding parts of the network nodes that the BUM traffic is unable to reach. Each identified segment includes network nodes that are interconnected by physical network hardware that supports BUM traffic. The method identifies multiple BUM traffic segments in a given network that each supports its own BUM traffic. The different BUM traffic segments are interconnected by physical network hardware that does not support BUM network traffic. Each identified segment is assigned an identifier that uniquely distinguishes the identified segment from other identified segments.

36. 发明申请

US20150172132A1 CONNECTIVITY SEGMENT COLORING 有权
标题翻译：连通性分色
公开(公告)号：US20150172132A1
公开(公告)日：2015-06-18
申请号：US14133524
申请日：2013-12-18
申请人： Nicira, Inc.
发明人： Alexander Tessmer , Ram Dular Singh , Ganesan Chandrashekhar
IPC分类号： H04L12/24 , H04L12/761
CPC分类号： H04L45/16 , H04L12/462 , H04L12/4633 , H04L12/4641 , H04L45/02
摘要： A novel method for fully utilizing the multicast or broadcast capability of a physical network is provided. The method identifies segments of the network within which broadcast traffic, multicast traffic, or traffic to unknown recipients (BUM traffic) is allowed or enabled. The identified segment encompasses parts of the network that the BUM traffic is able reach while excluding parts of the network nodes that the BUM traffic is unable to reach. Each identified segment includes network nodes that are interconnected by physical network hardware that supports BUM traffic. The method identifies multiple BUM traffic segments in a given network that each supports its own BUM traffic. The different BUM traffic segments are interconnected by physical network hardware that does not support BUM network traffic. Each identified segment is assigned an identifier that uniquely distinguishes the identified segment from other identified segments.
摘要翻译：提供了一种充分利用物理网络的多播或广播能力的新颖方法。该方法识别允许或启用广播流量，组播流量或到未知接收者（BUM流量）的流量的网络段。识别的段包含BUM业务能够到达的网络的部分，同时排除BUM业务无法到达的网络节点的部分。每个识别的段包括通过支持BUM业务的物理网络硬件互连的网络节点。该方法识别给定网络中的每个支持其自己的BUM流量的多个BUM流量段。不同的BUM流量段通过不支持BUM网络流量的物理网络硬件互连。为每个标识的段分配一个标识符，其将所识别的段与其他识别的段唯一区分开。

37. 发明授权

US11923996B2 Replicating broadcast, unknown-unicast, and multicast traffic in overlay logical networks bridged with physical networks 有权
公开(公告)号：US11923996B2
公开(公告)日：2024-03-05
申请号：US17306906
申请日：2021-05-03
申请人： Nicira, Inc.
发明人： Alexander Tessmer , Mukesh Hira , Rajiv Krishnamurthy , Ram Dular Singh , Xuan Zhang , Hua Wang
IPC分类号： H04L12/18 , H04L12/46
CPC分类号： H04L12/18 , H04L12/4641
摘要： A novel method for performing replication of messages in a network that bridges one or more physical networks to an overlay logical network is provided. A physical gateway provides bridging between network nodes of a physical network and virtual machines in the overlay logical network by serving as an endpoint of the overlay logical network. The physical gateway does not replicate messages from the bridged physical network to destination endpoints in the overlay logical network directly, but instead tunnels the message-to-be-replicated to a designated tunnel endpoint in the overlay logical network. The designated tunnel endpoint in turn replicates the message that was tunneled to it to other endpoints in the overlay logical network.

38. 发明授权

US11811545B2 Distributed multicast logical router 有权
公开(公告)号：US11811545B2
公开(公告)日：2023-11-07
申请号：US17129788
申请日：2020-12-21
申请人： Nicira, Inc.
发明人： Sami Boutros , Sharath Bhat , Jerome Catrouillet , Subin Cyriac Mathew , Alexander Tessmer
IPC分类号： H04L12/18 , H04L12/761 , H04L45/16 , H04L45/44 , H04L41/0893
CPC分类号： H04L12/185 , H04L12/1886 , H04L45/16 , H04L41/0893 , H04L45/44
摘要： Some embodiments provide a method for configuring a set of MFEs to implement a distributed multicast logical router and multiple logical switches to process the multicast data messages. The method sends, from a managed forwarding element (MFE) implementing the distributed multicast logical router, a multicast group query to a set of data compute nodes (DCNs) that are logically connected to one of several logical switches and that execute on the same host machine as the managed forwarding element. The method receives multicast group reports from a subset of the set of DCNs and at least one of the multicast group reports specifies a multicast group of interest. The method distributes, to a set of MFEs executing on other host machines, a summarized multicast group report specifying a set of multicast groups of interest to the first MFE (i.e., multicast groups that the first MFE participates in).

39. 发明申请

US20220368654A1 MANAGING NETWORK TRAFFIC IN VIRTUAL SWITCHES BASED ON LOGICAL PORT IDENTIFIERS 有权
公开(公告)号：US20220368654A1
公开(公告)日：2022-11-17
申请号：US17875863
申请日：2022-07-28
申请人： Nicira, Inc.
发明人： Jayant Jain , Ganesan Chandrashekhar , Anirban Sengupta , Pankaj Thakkar , Alexander Tessmer
IPC分类号： H04L49/00 , H04L41/0803 , H04L12/46 , H04L45/64 , H04L45/00
摘要： Described herein are systems, methods, and software to enhance network traffic management. In one implementation, a first host identifies a packet to be transferred from a first virtual machine on the first host to a second virtual machine on a second host. In response to identifying the packet, the first host identifies a source logical port for the first virtual machine, and transferring a communication to the second host, wherein the communication encapsulates the data packet and the source logical port. Once the packet is received by the second host, the second host may use the source logical port to determine a forwarding action for the packet.

40. 发明申请

US20200334069A1 LEARNING OF TUNNEL ENDPOINT SELECTIONS 审中-公开
公开(公告)号：US20200334069A1
公开(公告)日：2020-10-22
申请号：US16920397
申请日：2020-07-02
申请人： Nicira, Inc.
发明人： Jianjun Shen , Alexander Tessmer , Mukesh Hira , Pankaj Thakkar , Hua Wang
IPC分类号： G06F9/455 , H04L12/741 , H04L12/721 , H04L12/911 , H04L12/931 , H04L29/12 , H04L12/46
摘要： Some embodiments provide a method for a managed forwarding element (MFE). At the MFE, the method receives a first packet from a particular tunnel endpoint. The first packet originates from a particular data compute node associated with multiple tunnel endpoints including the particular tunnel endpoint. Based on the first packet, the method stores an association of the particular tunnel endpoint with the particular data compute node. The method uses the stored association to encapsulate subsequent packets received at the MFE and having the particular data compute node as a destination address with the particular tunnel endpoint as a destination tunnel endpoint.

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