专利快速检索-快速检索全球专利，免费商用专利数据库-IPRDB

1. 发明授权

US11483175B2 Virtual distributed bridging 有权
公开(公告)号：US11483175B2
公开(公告)日：2022-10-25
申请号：US16671225
申请日：2019-11-01
申请人： Nicira, Inc.
发明人： Rahul Korivi Subramaniyam , Howard Wang , Ganesan Chandrashekhar , Vivek Agarwal , Ram Dular Singh
IPC分类号： H04L12/46
摘要： Virtualization software that includes a VDRB (virtual distributed router/bridge) module for performing L3 routing and/or bridging operations is provided. At least some of the VDRBs are configured as VDBs (virtual distributed bridge) for performing bridging operations between different network segments in a distributed manner. The bridging tasks of a network are partitioned among several VDBs of the network based on MAC addresses. MAC addresses of VMs or other types of network nodes belonging to an overlay logical network are partitioned into several shards, each shard of MAC addresses assigned to a VDB in the network. Each VDB assigned a shard of MAC addresses performs bridging when it receives a packet bearing a MAC address belonging to its assigned shard. A VDB does not perform bridging on packets that do not have MAC address that falls within the VDB's shard of MAC addresses.

2. 发明申请

US20210328921A1 INTERMEDIATE LOGICAL INTERFACES IN A VIRTUAL DISTRIBUTED ROUTER ENVIRONMENT 有权
公开(公告)号：US20210328921A1
公开(公告)日：2021-10-21
申请号：US17361284
申请日：2021-06-28
申请人： Nicira, Inc.
发明人： Vivek Agarwal , Ganesan Chandrashekhar , Rahul Korivi Subramaniyam , Howard Wang , Ram Dular Singh
IPC分类号： H04L12/741 , G06F9/455 , H04L12/721 , H04L12/46 , H04L12/715 , H04L12/713 , H04L12/801 , H04L29/08 , H04L12/24
摘要： 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.

3. 发明申请

US20180167316A1 ADDRESS RESOLUTION USING MULTIPLE DESIGNATED INSTANCES OF A LOGICAL ROUTER 审中-公开
公开(公告)号：US20180167316A1
公开(公告)日：2018-06-14
申请号：US15891285
申请日：2018-02-07
申请人： Nicira, Inc.
发明人： Vivek Agarwal , Ganesan Chandrashekhar , Rahul Korivi Subramaniyam , Ram Dular Singh , Howard Wang
IPC分类号： H04L12/713
CPC分类号： H04L45/586 , H04L45/741 , H04L49/70 , H04L61/2596
摘要： 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.

4. 发明授权

US09548965B2 Proxy methods for suppressing broadcast traffic in a network 有权
标题翻译：用于抑制网络中的广播流量的代理方法
公开(公告)号：US09548965B2
公开(公告)日：2017-01-17
申请号：US14070360
申请日：2013-11-01
申请人： Nicira, Inc.
发明人： Hua Wang , Jianjun Shen , Donghai Han , Caixia Jiang , Wei Lu , Rahul Korivi Subramaniyam
IPC分类号： H04L29/06 , H04L12/58 , H04L29/12 , G06F9/455
CPC分类号： H04L63/0281 , G06F9/45558 , G06F2009/45595 , H04L51/12 , H04L61/103 , H04L61/2015 , H04L61/6013 , H04L61/6022 , H04L63/0236 , H04L63/1441 , H04L63/1466
摘要： Some embodiments use proxies on host devices to suppress broadcast traffic in a network. Each host in some embodiments executes one or more virtual machines (VMs). In some embodiments, a proxy operates on each host between each VM and the underlying network. For instance, in some of these embodiments, a VM's proxy operates between the VM and a physical forwarding element executing on the VM's host. The proxy monitors the VM's traffic, and intercepts broadcast packets when it knows how to deal with them. The proxy connects to a set of one or more controllers that provides a directory service that collects and maintains global information of the network. By connecting to the controller cluster, the proxy can obtain information that it can use to resolve broadcast requests. In some embodiments, the connection between the proxy and the controller cluster is encrypted and authenticated, to enhance the security. Also, in some embodiments, the connection is an indirect connection through an agent that executes on the host device and connects the proxies of the host device with the controller cluster.
摘要翻译：一些实施例使用主机设备上的代理来抑制网络中的广播流量。在一些实施例中，每个主机执行一个或多个虚拟机（VM）。在一些实施例中，代理在每个VM和底层网络之间的每个主机上运行。例如，在这些实施例中的一些实施例中，VM的代理在VM和在VM主机上执行的物理转发元件之间运行。代理监视虚拟机的流量，并在知道如何处理广播数据包时拦截广播数据包。代理连接到一组一个或多个控制器，提供收集和维护网络的全局信息的目录服务。通过连接到控制器集群，代理可以获取可用于解决广播请求的信息。在一些实施例中，代理和控制器集群之间的连接被加密和认证，以增强安全性。此外，在一些实施例中，连接是通过在主机设备上执行并将主机设备的代理与控制器集群连接的代理的间接连接。

5. 发明申请

US20170005924A1 REDIRECTING TRAFFIC IN A VIRTUAL DISTRIBUTED ROUTER ENVIRONMENT 审中-公开
标题翻译：在虚拟分布式路由器环境中重新启动交通
公开(公告)号：US20170005924A1
公开(公告)日：2017-01-05
申请号：US14840309
申请日：2015-08-31
申请人： Nicira, Inc.
发明人： Vivek Agarwal , Ganesan Chandrashekhar , Rahul Korivi Subramaniyam , Howard Wang , Ram Dular Singh
IPC分类号： H04L12/741 , H04L12/721 , G06F9/455
CPC分类号： 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
摘要： 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.
摘要翻译：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。

6. 发明授权

US09531676B2 Proxy methods for suppressing broadcast traffic in a network 有权
标题翻译：用于抑制网络中的广播流量的代理方法
公开(公告)号：US09531676B2
公开(公告)日：2016-12-27
申请号：US14070346
申请日：2013-11-01
申请人： Nicira, Inc.
发明人： Hua Wang , Jianjun Shen , Donghai Han , Caixia Jiang , Wei Lu , Rahul Korivi Subramaniyam
IPC分类号： H04L29/06 , H04L12/58 , H04L29/12 , G06F9/455
CPC分类号： H04L63/0281 , G06F9/45558 , G06F2009/45595 , H04L51/12 , H04L61/103 , H04L61/2015 , H04L61/6013 , H04L61/6022 , H04L63/0236 , H04L63/1441 , H04L63/1466
摘要： Some embodiments use proxies on host devices to suppress broadcast traffic in a network. Each host in some embodiments executes one or more virtual machines (VMs). In some embodiments, a proxy operates on each host between each VM and the underlying network. For instance, in some of these embodiments, a VM's proxy operates between the VM and a physical forwarding element executing on the VM's host. The proxy monitors the VM's traffic, and intercepts broadcast packets when it knows how to deal with them. The proxy connects to a set of one or more controllers that provides a directory service that collects and maintains global information of the network. By connecting to the controller cluster, the proxy can obtain information that it can use to resolve broadcast requests. In some embodiments, the connection between the proxy and the controller cluster is encrypted and authenticated, to enhance the security. Also, in some embodiments, the connection is an indirect connection through an agent that executes on the host device and connects the proxies of the host device with the controller cluster.
摘要翻译：一些实施例使用主机设备上的代理来抑制网络中的广播流量。在一些实施例中，每个主机执行一个或多个虚拟机（VM）。在一些实施例中，代理在每个VM和底层网络之间的每个主机上运行。例如，在这些实施例中的一些实施例中，VM的代理在VM和在VM主机上执行的物理转发元件之间运行。代理监视虚拟机的流量，并在知道如何处理广播数据包时拦截广播数据包。代理连接到一组一个或多个控制器，提供收集和维护网络的全局信息的目录服务。通过连接到控制器集群，代理可以获取可用于解决广播请求的信息。在一些实施例中，代理和控制器集群之间的连接被加密和认证，以增强安全性。而且，在一些实施例中，连接是通过在主机设备上执行并将主机设备的代理与控制器集群连接的代理的间接连接。

7. 发明申请

US20200296038A1 INTERMEDIATE LOGICAL INTERFACES IN A VIRTUAL DISTRIBUTED ROUTER ENVIRONMENT 审中-公开
公开(公告)号：US20200296038A1
公开(公告)日：2020-09-17
申请号：US16888860
申请日：2020-06-01
申请人： Nicira, Inc.
发明人： Vivek Agarwal , Ganesan Chandrashekhar , Rahul Korivi Subramaniyam , Howard Wang , Ram Dular Singh
IPC分类号： H04L12/741 , G06F9/455 , H04L12/721 , H04L12/46 , H04L12/715 , H04L12/713 , H04L12/801 , H04L29/08 , H04L12/24
摘要： 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.

8. 发明申请

US20200067730A1 VIRTUAL DISTRIBUTED BRIDGING 审中-公开
公开(公告)号：US20200067730A1
公开(公告)日：2020-02-27
申请号：US16671225
申请日：2019-11-01
申请人： Nicira, Inc.
发明人： Rahul Korivi Subramaniyam , Howard Wang , Ganesan Chandrashekhar , Vivek Agarwal , Ram Dular Singh
IPC分类号： H04L12/46
摘要： Virtualization software that includes a VDRB (virtual distributed router/bridge) module for performing L3 routing and/or bridging operations is provided. At least some of the VDRBs are configured as VDBs (virtual distributed bridge) for performing bridging operations between different network segments in a distributed manner. The bridging tasks of a network are partitioned among several VDBs of the network based on MAC addresses. MAC addresses of VMs or other types of network nodes belonging to an overlay logical network are partitioned into several shards, each shard of MAC addresses assigned to a VDB in the network. Each VDB assigned a shard of MAC addresses performs bridging when it receives a packet bearing a MAC address belonging to its assigned shard. A VDB does not perform bridging on packets that do not have MAC address that falls within the VDB's shard of MAC addresses.

9. 发明授权

US09768980B2 Virtual distributed bridging 有权
公开(公告)号：US09768980B2
公开(公告)日：2017-09-19
申请号：US14503164
申请日：2014-09-30
申请人： Nicira, Inc.
发明人： Rahul Korivi Subramaniyam , Howard Wang , Ganesan Chandrashekhar , Vivek Agarwal , Ram Dular Singh
IPC分类号： H04L12/28 , H04L12/46
CPC分类号： H04L12/4625 , H04L12/462 , H04L12/4641
摘要： Virtualization software that includes a VDRB (virtual distributed router/bridge) module for performing L3 routing and/or bridging operations is provided. At least some of the VDRBs are configured as VDBs (virtual distributed bridge) for performing bridging operations between different network segments in a distributed manner. The bridging tasks of a network are partitioned among several VDBs of the network based on MAC addresses. MAC addresses of VMs or other types of network nodes belonging to an overlay logical network are partitioned into several shards, each shard of MAC addresses assigned to a VDB in the network. Each VDB assigned a shard of MAC addresses performs bridging when it receives a packet bearing a MAC address belonging to its assigned shard. A VDB does not perform bridging on packets that do not have MAC address that falls within the VDB's shard of MAC addresses.

10. 发明授权

US09602385B2 Connectivity segment selection 有权
公开(公告)号：US09602385B2
公开(公告)日：2017-03-21
申请号：US14133528
申请日：2013-12-18
申请人： Nicira, Inc.
发明人： Alexander Tessmer , Jianjun Shen , Hua Wang , Rahul Korivi Subramaniyam
IPC分类号： H04L12/751 , H04L12/46 , H04L12/18
CPC分类号： H04L45/02 , H04L12/1886 , H04L12/462 , H04L12/4633 , H04L12/4641
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.

你已经成功收藏专利！

检索式保存成功!

IPRDB

热门服务

关于我们

友情链接

联系方式