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1. 发明授权

US08694664B2 Active-active multi-homing support for overlay transport protocol 有权
标题翻译：主动主动多重归属支持覆盖传输协议
公开(公告)号：US08694664B2
公开(公告)日：2014-04-08
申请号：US12952790
申请日：2010-11-23
申请人： Saurabh Jain , Sanjay Sane , Sameer Merchant , Chandan Mishra , Hasmit Grover , Dhananjaya Rao
发明人： Saurabh Jain , Sanjay Sane , Sameer Merchant , Chandan Mishra , Hasmit Grover , Dhananjaya Rao
IPC分类号： G06F15/16
CPC分类号： H04L45/04 , H04L45/16 , H04L45/24
摘要： Techniques are provided for two peer edge switches in an edge switch cluster of a first data center site to actively provide traffic flow redundancy in an active-active configuration and provide multi-homing support over an overlay transport virtualization (OTV) protocol. Information is stored indicating a media access control (MAC) address of at least one endpoint device at the first site. An edge switch in the edge switch cluster at the first site sends via an OTV protocol a Layer-3 message that is configured to advertise the MAC address of the at least one endpoint at the first site to enable at least one edge switch at a second site to perform multipath routing to the endpoint device at the first site based on each of the edge switches in the edge switch cluster at the first site.
摘要翻译：为第一数据中心站点的边缘交换机集群中的两个对等边缘交换机提供技术，以主动提供主动 - 主动配置中的业务流冗余，并提供覆盖传输虚拟化（OTV）协议的多归属支持。存储指示在第一站点处的至少一个端点设备的媒体访问控制（MAC）地址的信息。第一站点的边缘交换机集群中的边缘交换机通过OTV协议发送第三层消息，该第三层消息被配置为在第一站点通告至少一个端点的MAC地址，以使能至少一个边缘交换机基于第一站点上的边缘交换机集群中的每个边缘交换机，在第一站点处执行多路径路由到端点设备。

2. 发明申请

US20130089093A1 Multicast Active Source Discovery and Management for Layer-2 Interconnect Solutions 有权
标题翻译：用于第2层互连解决方案的组播活动源发现和管理
公开(公告)号：US20130089093A1
公开(公告)日：2013-04-11
申请号：US13253505
申请日：2011-10-05
申请人： Nataraj Bacthu , Ashok Chippa , Hasmit Grover , Raghava Sivaramu , Dino Farinacci
发明人： Nataraj Bacthu , Ashok Chippa , Hasmit Grover , Raghava Sivaramu , Dino Farinacci
IPC分类号： H04L12/56
CPC分类号： H04L45/04 , H04L12/4633 , H04L12/4641 , H04L45/16 , H04L45/64 , H04L2212/00
摘要： Methods and systems may be provided for installing a route entry associated with multicast traffic to a memory. Client devices may be notified of the route entry for advertisement by an active source device. The delivery group and delivery source may be retrieved from the information for the route entry. Multicast data trees may maintain delivery group and delivery source information for access.
摘要翻译：可以提供用于将与组播业务相关联的路由条目安装到存储器的方法和系统。客户端设备可以被通知用于由活动源设备进行广告的路由条目。可以从路由条目的信息中检索传送组和传送源。组播数据树可以维护用于访问的传送组和传送源信息。

3. 发明申请

US20120131216A1 Active-Active Multi-Homing Support for Overlay Transport Protocol 有权
标题翻译：主动 - 主动多重归属支持覆盖传输协议
公开(公告)号：US20120131216A1
公开(公告)日：2012-05-24
申请号：US12952790
申请日：2010-11-23
申请人： Saurabh Jain , Sanjay Sane , Sameer Merchant , Chandan Mishra , Hasmit Grover , Dhananjaya Rao
发明人： Saurabh Jain , Sanjay Sane , Sameer Merchant , Chandan Mishra , Hasmit Grover , Dhananjaya Rao
IPC分类号： G06F15/16
CPC分类号： H04L45/04 , H04L45/16 , H04L45/24
摘要： Techniques are provided for active-active multi-homing support over an overlay transport virtualization protocol for an edge switch at a data center site. At an edge switch that is configured to operate in an active-active multi-homing mode with at least one other edge switch in an edge switch cluster at a first data center site that comprises one or more endpoint devices, information is stored indicating a media access control (MAC) address of at least one endpoint device at the first site. The edge switch in the edge switch cluster at the first site sends via an overlay transport virtualization protocol a Layer-3 message that is configured to advertise the MAC address of the at least one endpoint at the first site to enable the at least one edge switch at the second site to perform multipath routing to the endpoint device at the first site based on each of the edge switches in the edge switch cluster at the first site.
摘要翻译：提供了用于主动 - 主动多重归属支持的技术，用于跨数据中心站点的边缘交换机的覆盖传输虚拟化协议。在被配置为以主动 - 主动多重归属模式操作的边缘交换机，在包括一个或多个端点设备的第一数据中心站点处的边缘交换机集群中的至少一个其他边缘交换机，存储指示媒体的信息在第一站点处的至少一个端点设备的访问控制（MAC）地址。第一站点的边缘交换机集群中的边缘交换机经由覆盖传输虚拟化协议发送第三层消息，其被配置为在第一站点上通告该至少一个端点的MAC地址，以使能至少一个边缘交换机在第二站点，基于第一站点处的边缘交换机集群中的每个边缘交换机来执行到第一站点处的端点设备的多路径路由。

4. 发明授权

US09288067B2 Adjacency server for virtual private networks 有权
标题翻译：适用于虚拟专用网络的邻接服务器
公开(公告)号：US09288067B2
公开(公告)日：2016-03-15
申请号：US13424569
申请日：2012-03-20
申请人： Dino Farinacci , Gaurav Badoni , Hasmit Grover , Dhananjaya Rao , Nataraj Bacthu
发明人： Dino Farinacci , Gaurav Badoni , Hasmit Grover , Dhananjaya Rao , Nataraj Bacthu
IPC分类号： H04L12/28 , H04L12/18 , H04L12/721 , H04L12/761
CPC分类号： H04L12/1836 , H04L45/16 , H04L45/66
摘要： Devices, methods and instructions encoded on computer readable medium are provided herein for creation of an overlay network on a non-multicast or source specific multicast (SSM) core. In one example, virtual private network (VPN) adjacencies are established between an adjacency server and one or more edge devices each located at different network sites. A unicast replication list is then generated at the adjacency server. The unicast replication list includes the Internet Protocol addresses for each of the edge devices having VPN adjacencies with the adjacency server. The unicast replication list is then advertised to each of the edge devices for use in establishing VPN adjacencies with one another.
摘要翻译：本文提供了在计算机可读介质上编码的设备，方法和指令，用于在非多播或源特定多播（SSM）核心上创建覆盖网络。在一个示例中，在邻接服务器和每个位于不同网络站点的一个或多个边缘设备之间建立虚拟专用网（VPN）邻接。然后在邻接服务器上生成单播复制列表。单播复制列表包括与邻接服务器具有VPN邻接性的每个边缘设备的因特网协议地址。然后将单播复制列表通告给每个边缘设备，以用于彼此建立VPN邻接。

5. 发明申请

US20130250949A1 Adjacency Server for Virtual Private Networks 有权
标题翻译：虚拟专用网络的邻接服务器
公开(公告)号：US20130250949A1
公开(公告)日：2013-09-26
申请号：US13424569
申请日：2012-03-20
申请人： Dino Farinacci , Gaurav Badoni , Hasmit Grover , Dhananjaya Rao , Nataraj Bacthu
发明人： Dino Farinacci , Gaurav Badoni , Hasmit Grover , Dhananjaya Rao , Nataraj Bacthu
IPC分类号： H04L12/56
CPC分类号： H04L12/1836 , H04L45/16 , H04L45/66
摘要： Devices, methods and instructions encoded on computer readable medium are provided herein for creation of an overlay network on a non-multicast or source specific multicast (SSM) core. In one example, virtual private network (VPN) adjacencies are established between an adjacency server and one or more edge devices each located at different network sites. A unicast replication list is then generated at the adjacency server. The unicast replication list includes the Internet Protocol addresses for each of the edge devices having VPN adjacencies with the adjacency server. The unicast replication list is then advertised to each of the edge devices for use in establishing VPN adjacencies with one another.
摘要翻译：本文提供了在计算机可读介质上编码的设备，方法和指令，用于在非多播或源特定多播（SSM）核心上创建覆盖网络。在一个示例中，在邻接服务器和每个位于不同网络站点的一个或多个边缘设备之间建立虚拟专用网（VPN）邻接。然后在邻接服务器上生成单播复制列表。单播复制列表包括与邻接服务器具有VPN邻接性的每个边缘设备的因特网协议地址。然后将单播复制列表通告给每个边缘设备，以用于彼此建立VPN邻接。

6. 发明申请

US20130182604A1 Connecting Layer-2 Domains Over Layer-3 Networks 有权
标题翻译：连接第3层网络上的第2层域
公开(公告)号：US20130182604A1
公开(公告)日：2013-07-18
申请号：US13349376
申请日：2012-01-12
申请人： Victor Moreno , Dhananjaya Rao , Sanjay Sane , Sameer Merchant , Hasmit Grover
发明人： Victor Moreno , Dhananjaya Rao , Sanjay Sane , Sameer Merchant , Hasmit Grover
IPC分类号： H04L12/28
CPC分类号： H04L61/103 , H04L45/00 , H04L45/66 , H04L45/742
摘要： In one embodiment, a method includes building an address resolution cache for a layer-3 router in a first layer-2 datacenter, where the address resolution cache includes a plurality of entries, each of the entries containing a host network address, a host hardware address, and a switch identifier for a switch serving a host, intercepting an address resolution flood within the first layer-2 datacenter that seeks address resolution for a host in a second layer-2 datacenter, and generating a response to the address resolution flood that indicates a source in the second layer-2 datacenter, where data indicating the source in the second layer-2 datacenter is accessed from the address resolution cache.
摘要翻译：在一个实施例中，一种方法包括为第一层-2数据中心中的第三层路由器建立地址解析高速缓存，其中地址解析高速缓存包括多个条目，每个条目包含主机网络地址，主机硬件地址和用于为主机服务的交换机的交换机标识符，截取在第二层数据中心内寻找地址解析的第二层数据中心内的地址解析洪水，并产生对地址解析洪水的响应指示第二层数据中心中的源，其中从地址解析缓存访问指示第二层数据中心中的源的数据。

7. 发明授权

US09071458B2 Dual adjacency between edge devices at a network site 有权
标题翻译：网络边缘设备之间的双重邻接
公开(公告)号：US09071458B2
公开(公告)日：2015-06-30
申请号：US13361014
申请日：2012-01-30
申请人： Dhananjaya Rao , Victor M. Moreno , Hasmit Grover , Gaurav Badoni
发明人： Dhananjaya Rao , Victor M. Moreno , Hasmit Grover , Gaurav Badoni
IPC分类号： G06F11/16 , H04L12/46
CPC分类号： G06F11/2033 , G06F2201/86 , H04L12/4641 , H04L45/02 , H04L47/746 , H04L67/141
摘要： Devices, methods and instructions encoded on computer readable medium for implementation of a dual-adjacency between edge devices of a network site. A first edge device comprises one or more local interfaces configured for communication, via a local network, with one or more network devices co-located in a first network site. The first edge device also comprises one or more overlay interfaces configured for communication, via a core network, with one or more network devices located in one or more other network sites connected to the core network. The first edge device comprises a processor configured to establish, via at least one of the local interfaces, a site communication channel with a second edge device co-located in the first network site. The processor is further configured to establish an overlay communication channel, via at least one of the overlay interfaces, with the second edge device.
摘要翻译：编码在计算机可读介质上的设备，方法和指令，用于实现网络站点的边缘设备之间的双邻接。第一边缘设备包括一个或多个本地接口，其被配置用于经由本地网络与共同位于第一网络站点中的一个或多个网络设备进行通信。第一边缘设备还包括被配置为经由核心网络与位于连接到核心网络的一个或多个其他网络站点中的一个或多个网络设备进行通信的一个或多个覆盖接口。第一边缘设备包括处理器，其被配置为经由本地接口中的至少一个建立与第一网络站点中共址的第二边缘设备的站点通信信道。处理器还被配置为经由至少一个覆盖接口与第二边缘设备建立覆盖通信信道。

8. 发明授权

US08645576B2 Overlay transport virtualization 有权
标题翻译：覆盖传输虚拟化
公开(公告)号：US08645576B2
公开(公告)日：2014-02-04
申请号：US13422831
申请日：2012-03-16
申请人： Dino Farinacci , Tony Speakman , Nair Venugopal , Hasmit Grover , Victor Moreno , Dhananjaya Rao
发明人： Dino Farinacci , Tony Speakman , Nair Venugopal , Hasmit Grover , Victor Moreno , Dhananjaya Rao
IPC分类号： G06F15/16
CPC分类号： H04L12/4641 , H04L29/12028 , H04L29/12839 , H04L61/103 , H04L61/106 , H04L61/6022
摘要： In one embodiment, an apparatus includes one or more internal interfaces in communication with one or more network devices in a first network site through a Layer 2 link, an overlay interface in communication through a Layer 3 link with a core network connected to one or more other network sites, and a table mapping addresses for network devices in the other network sites to addresses of edge devices in the same network site as the network device. The apparatus further includes a processor operable to encapsulate a packet received at one of the internal interfaces and destined for one of the network devices in the other network sites, with an IP header including a destination address of the edge device mapped to the destination network device, and forward the encapsulated packet to the core network.
摘要翻译：在一个实施例中，设备包括通过第2层链路与第一网络站点中的一个或多个网络设备通信的一个或多个内部接口，通过与连接到一个或多个网络的核心网络的第3层链路通信的覆盖接口其他网络站点，以及将其他网络站点中的网络设备的地址映射到与网络设备相同的网络站点中的边缘设备的地址。该装置还包括处理器，其可操作以封装在其中一个内部接口处接收的分组，并发往另一个网络中的网络设备之一，其中包括映射到目的地网络设备的边缘设备的目的地地址的IP报头，并将封装的数据包转发到核心网络。

9. 发明申请

US20130021942A1 Granular Control of Multicast Delivery Services for Layer-2 Interconnect Solutions 审中-公开
标题翻译：用于第2层互连解决方案的组播传送服务的粒度控制
公开(公告)号：US20130021942A1
公开(公告)日：2013-01-24
申请号：US13185326
申请日：2011-07-18
申请人： Nataraj Bacthu , Ashok Chippa , Hasmit Grover , Raghava Sivaramu
发明人： Nataraj Bacthu , Ashok Chippa , Hasmit Grover , Raghava Sivaramu
IPC分类号： H04L12/28
CPC分类号： H04L12/4641 , H04L12/1836 , H04L45/04 , H04L45/16 , H04L45/48 , H04L45/64
摘要： In order to achieve optimized delivery of multicast traffic between L2 OTV sites across an L3 multicast service provider core infrastructure, embodiments of the present disclosure describe building different provider multicast data trees rooted at a source site for individual per-vlan (*,G)/(S,G) streams. Building such provider trees may require individual sites to discover multicast sources local to their network and subsequently announce to all receiver sites the multicast data trees (DS, DG) to be used to deliver such multicast traffic. The present disclosure describes the coordination between OTV edge devices for the (S,G) to (DS, DG) mapping originated by the source OTV edge device where the multicast traffic is originated.
摘要翻译：为了实现跨越L3多播服务提供商核心基础设施的L2 OTV站点之间的组播流量的优化传递，本公开的实施例描述了建立基于源站点的不同提供商组播数据树，用于单个vlan（*，G）/ （S，G）流。构建这样的提供者树可能需要各个站点来发现其网络本地的组播源，然后向所有接收者站点通告要用于传送这种多播流量的多播数据树（DS，DG）。本公开描述了用于由发起多播业务的源OTV边缘设备发起的（S，G）到（DS，DG）映射的OTV边缘设备之间的协调。

10. 发明授权

US08320371B2 Statistics based forwarding information base repopulation 有权
标题翻译：基于统计的转发信息库重新计算
公开(公告)号：US08320371B2
公开(公告)日：2012-11-27
申请号：US11977762
申请日：2007-10-26
申请人： Hasmit Grover , Tony Speakman
发明人： Hasmit Grover , Tony Speakman
IPC分类号： H04L12/56
CPC分类号： H04L45/54 , H04L45/02 , H04L45/36 , H04L45/7457
摘要： A method and apparatus for repopulating a forwarding information base at a network device are disclosed. In one embodiment, the apparatus includes a routing information base, forwarding information base, memory for storing performance data based on packets forwarded from the network device, and a processor configured to prioritize routes stored in the routing information base based on the performance data, propagate the routes from the routing information base to the forwarding information base in an order based at least in part on the route priorities.
摘要翻译：公开了一种在网络设备上重新传送转发信息库的方法和装置。在一个实施例中，该设备包括路由信息库，转发信息库，基于从网络设备转发的分组存储性能数据的存储器，以及配置为基于性能数据优先考虑存储在路由信息库中的路由的处理器，传播至少部分地基于路由优先级的从路由信息库到转发信息库的路由。

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