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公开(公告)号：US20180278577A1
公开(公告)日：2018-09-27
申请号：US15466575
申请日：2017-03-22
Applicant: Nicira, Inc.
Inventor： Ganesan Chandrashekhar , Xiaohu Wang , Hongwei Zhu , Ankur Kumar Sharma , Vivek Agarwal
CPC classification number: H04L61/6022 , H04L61/103 , H04L67/1095
Abstract: The technology disclosed herein enables high availability bridging between Layer 2 (L2) networks. In a particular embodiment, a method includes high availability bridge cluster comprising a first bridge node and a second bridge node. The first and second bridge nodes include first and second active bridges and first and second standby bridges, respectively. The method provides, in the first active bridge, bridging network communications between two or more L2 networks. The second standby bridge acts as a failover bridge for the first active bridge. The method further provides generating a failure detection message that incorporates a hardware address of the first bridge node and transferring the failure detection message from the first bridge node to the second bridge node. In the second standby bridge, the method provides receiving the failure detection message and using the hardware address to synchronize bridging information between the first active bridge and the second standby bridge.
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公开(公告)号：US20180167316A1
公开(公告)日：2018-06-14
申请号：US15891285
申请日：2018-02-07
Applicant: Nicira, Inc.
Inventor： Vivek Agarwal , Ganesan Chandrashekhar , Rahul Korivi Subramaniyam , Ram Dular Singh , Howard Wang
IPC: H04L12/713
CPC classification number: H04L45/586 , H04L45/741 , H04L49/70 , H04L61/2596
Abstract: A logical routing element (LRE) having multiple designated instances for routing packets from physical hosts (PH) to a logical network is provided. A PH in a network segment with multiple designated instances can choose among the multiple designated instances for sending network traffic to other network nodes in the logical network according to a load balancing algorithm. Each logical interface (LIF) of an LRE is defined to be addressable by multiple identifiers or addresses, and each LIF identifier or address is assigned to a different designated instance.
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公开(公告)号：US09825851B2
公开(公告)日：2017-11-21
申请号：US14838045
申请日：2015-08-27
Applicant: Nicira, Inc.
Inventor： Vivek Agarwal , Ganesan Chandrashekhar , Abhishek Goliya , Akshay Katrekar
IPC: H04L12/721 , H04L12/931 , H04L29/08 , H04L12/713 , G06F9/455 , H04L12/773 , H04L12/24 , H04L12/933 , H04L12/947
CPC classification number: H04L45/66 , G06F9/45558 , G06F2009/45595 , H04L41/0806 , H04L45/586 , H04L45/60 , H04L49/15 , H04L49/25 , H04L49/35 , H04L49/70 , H04L69/324 , H04L69/325
Abstract: A system provisions global logical entities that facilitate the operation of logical networks that span two or more datacenters. These global logical entities include global logical switches that provide L2 switching as well as global routers that provide L3 routing among network nodes in multiple datacenters. The global logical entities operate along side local logical entities that are for operating logical networks that are local within a datacenter.
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公开(公告)号：US20170005924A1
公开(公告)日：2017-01-05
申请号：US14840309
申请日：2015-08-31
Applicant: Nicira, Inc.
Inventor： Vivek Agarwal , Ganesan Chandrashekhar , Rahul Korivi Subramaniyam , Howard Wang , Ram Dular Singh
IPC: H04L12/741 , H04L12/721 , G06F9/455
CPC classification number: H04L45/74 , G06F9/45558 , G06F2009/45595 , H04L12/4641 , H04L41/0893 , H04L45/04 , H04L45/38 , H04L45/44 , H04L45/586 , H04L45/66 , H04L47/33 , H04L49/70 , H04L69/325
Abstract: A LRE (logical routing element) that have LIFs that are active in all host machines spanned by the LRE as well as LIFs that are active in only a subset of those spanned host machines is provided. A host machine having an active LIF for a particular L2 segment would perform the L3 routing operations for network traffic related to that L2 segment. A host machine having an inactive LIF for the particular L2 segment would not perform L3 routing operations for the network traffic of the L2 segment.
Abstract translation: 提供了LRE（逻辑路由元素），其具有在由LRE跨越的所有主机中活动的LIF以及仅在这些跨越主机的一部分中活动的LIF。 具有用于特定L2段的活动LIF的主机将对与该L2段相关的网络流量执行L3路由操作。 具有用于特定L2段的无效LIF的主机将不对L2段的网络业务执行L3路由操作。
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公开(公告)号：US20160380925A1
公开(公告)日：2016-12-29
申请号：US14838045
申请日：2015-08-27
Applicant: Nicira, Inc.
Inventor： Vivek Agarwal , Ganesan Chandrashekhar , Abhishek Goliya , Akshay Katrekar
IPC: H04L12/947 , H04L12/713 , H04L12/773 , H04L12/721 , H04L29/08
CPC classification number: H04L45/66 , G06F9/45558 , G06F2009/45595 , H04L41/0806 , H04L45/586 , H04L45/60 , H04L49/15 , H04L49/25 , H04L49/35 , H04L49/70 , H04L69/324 , H04L69/325
Abstract: A system provisions global logical entities that facilitate the operation of logical networks that span two or more datacenters. These global logical entities include global logical switches that provide L2 switching as well as global routers that provide L3 routing among network nodes in multiple datacenters. The global logical entities operate along side local logical entities that are for operating logical networks that are local within a datacenter.
Abstract translation: 系统规定了促进跨越两个或更多数据中心的逻辑网络运行的全球逻辑实体。 这些全局逻辑实体包括提供L2交换的全球逻辑交换机以及在多个数据中心的网络节点之间提供L3路由的全局路由器。 全局逻辑实体沿着本地逻辑实体操作，用于操作数据中心内本地的逻辑网络。
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Patent Agency Ranking
公开(公告)号：US20160380815A1
公开(公告)日：2016-12-29
申请号：US14838122
申请日：2015-08-27
Applicant: Nicira, Inc.
Inventor： Vivek Agarwal , Ganesan Chandrashekhar , Abhishek Goliya , Akshay Katrekar
IPC: H04L12/24 , H04L12/931 , G06F9/455
CPC classification number: H04L45/66 , G06F9/45558 , G06F2009/45595 , H04L41/0806 , H04L45/586 , H04L45/60 , H04L49/15 , H04L49/25 , H04L49/35 , H04L49/70 , H04L69/324 , H04L69/325
Abstract: A system provisions global logical entities that facilitate the operation of logical networks that span two or more datacenters. These global logical entities include global logical switches that provide L2 switching as well as global routers that provide L3 routing among network nodes in multiple datacenters. The global logical entities operate along side local logical entities that are for operating logical networks that are local within a datacenter.
Abstract translation: 系统规定了促进跨越两个或更多数据中心的逻辑网络运行的全球逻辑实体。 这些全局逻辑实体包括提供L2交换的全球逻辑交换机以及在多个数据中心的网络节点之间提供L3路由的全局路由器。 全局逻辑实体沿着本地逻辑实体操作，用于操作数据中心内本地的逻辑网络。
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公开(公告)号：US12218834B2
公开(公告)日：2025-02-04
申请号：US18235859
申请日：2023-08-20
Applicant: Nicira, Inc.
Inventor： Vivek Agarwal , Ganesan Chandrashekhar , Rahul Korivi Subramaniyam , Ram Dular Singh , Howard Wang
IPC: H04L45/586 , H04L45/64 , H04L45/741 , H04L49/00 , H04L61/2596 , H04L67/10
Abstract: A logical routing element (LRE) having multiple designated instances for routing packets from physical hosts (PH) to a logical network is provided. A PH in a network segment with multiple designated instances can choose among the multiple designated instances for sending network traffic to other network nodes in the logical network according to a load balancing algorithm. Each logical interface (LIF) of an LRE is defined to be addressable by multiple identifiers or addresses, and each LIF identifier or address is assigned to a different designated instance.
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公开(公告)号：US12192103B2
公开(公告)日：2025-01-07
申请号：US18241234
申请日：2023-09-01
Applicant: Nicira, Inc.
Inventor： Vivek Agarwal , Ganesan Chandrashekhar , Rahul Korivi Subramaniyam , Howard Wang , Ram Dular Singh
IPC: H04L12/741 , G06F9/455 , H04L12/46 , H04L41/0893 , H04L45/00 , H04L45/02 , H04L45/44 , H04L45/586 , H04L45/74 , H04L47/33 , H04L69/325 , H04L49/00
Abstract: A LRE (logical routing element) that have LIFs that are active in all host machines spanned by the LRE as well as LIFs that are active in only a subset of those spanned host machines is provided. A host machine having an active LIF for a particular L2 segment would perform the L3 routing operations for network traffic related to that L2 segment. A host machine having an inactive LIF for the particular L2 segment would not perform L3 routing operations for the network traffic of the L2 segment.
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公开(公告)号：US20230421495A1
公开(公告)日：2023-12-28
申请号：US18241234
申请日：2023-09-01
Applicant: Nicira, Inc.
Inventor： Vivek Agarwal , Ganesan Chandrashekhar , Rahul Korivi Subramaniyam , Howard Wang , Ram Dular Singh
IPC: H04L45/74 , G06F9/455 , H04L45/00 , H04L12/46 , H04L45/02 , H04L45/586 , H04L47/33 , H04L69/325 , H04L41/0893 , H04L45/44
CPC classification number: H04L45/74 , G06F9/45558 , H04L45/66 , H04L12/4641 , H04L45/04 , H04L45/38 , H04L45/586 , H04L47/33 , H04L69/325 , H04L41/0893 , H04L45/44 , G06F2009/45595 , H04L49/70
Abstract: A LRE (logical routing element) that have LIFs that are active in all host machines spanned by the LRE as well as LIFs that are active in only a subset of those spanned host machines is provided. A host machine having an active LIF for a particular L2 segment would perform the L3 routing operations for network traffic related to that L2 segment. A host machine having an inactive LIF for the particular L2 segment would not perform L3 routing operations for the network traffic of the L2 segment.
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公开(公告)号：US11336486B2
公开(公告)日：2022-05-17
申请号：US16673658
申请日：2019-11-04
Applicant: Nicira, Inc.
Inventor： Ankur Kumar Sharma , Xiaohu Wang , Hongwei Zhu , Ganesan Chandrashekhar , Vivek Agarwal , Nithin B. Raju
IPC: H04L12/46 , H04L41/0893 , H04L41/0803 , H04L12/18 , H04L61/2592 , H04L61/2596
Abstract: Some embodiments provide a method for a set of central controllers that manages forwarding elements operating in a plurality of datacenters. The method receives a configuration for a bridge between (i) a logical L2 network that spans at least two datacenters and (ii) a physical L2 network. The configuration specifies a particular one of the datacenters for implementation of the bridge. The method identifies multiple managed forwarding elements that implement the logical L2 network and are operating in the particular datacenter. The method selects one of the identified managed forwarding elements to implement the bridge. The method distributes bridge configuration data to the selected managed forwarding element.
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