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1. 发明授权

US09853881B2 Autonomous system border router (ASBR) advertising routes with a same forwarding label 有权
公开(公告)号：US09853881B2
公开(公告)日：2017-12-26
申请号：US14263738
申请日：2014-04-28
申请人： Dhananjaya Rao , Keyur Patel
发明人： Dhananjaya Rao , Keyur Patel
IPC分类号： H04L12/715 , H04L12/723 , H04L12/46 , H04L12/751
CPC分类号： H04L45/04 , H04L12/4641 , H04L45/02 , H04L45/50
摘要： In one embodiment, an autonomous system border router (ASBR) advertises a same forwarding label for received advertised routes of a merging context that were advertised with a same forwarding label for the ASBR to use when sending corresponding packets. An ASBR receives via a routing protocol from a particular router in the same autonomous system, a plurality of same-labeled received routes advertised with a same first forwarding label within a merging context. In response to each of the plurality of same-labeled received routes having the same first forwarding label to use to forward packets to the particular router and being in the same merging context, the ASBR determines a merged forwarding label and advertises to a peer ASBR in another autonomous system (AS) each of the plurality of same-labeled received routes with the merged forwarding label for the peer ASBR to use to forward packets to the ASBR.

2. 发明申请

US20150312133A1 Autonomous System Border Router (ASBR) Advertising Routes with a Same Forwarding Label 有权
标题翻译：自治系统边界路由器（ASBR）具有相同转发标签的广告路由
公开(公告)号：US20150312133A1
公开(公告)日：2015-10-29
申请号：US14263738
申请日：2014-04-28
申请人： Dhananjaya Rao , Keyur Patel
发明人： Dhananjaya Rao , Keyur Patel
IPC分类号： H04L12/715 , H04L12/46 , H04L12/723
CPC分类号： H04L45/04 , H04L12/4641 , H04L45/02 , H04L45/50
摘要： In one embodiment, an autonomous system border router (ASBR) advertises a same forwarding label for received advertised routes of a merging context that were advertised with a same forwarding label for the ASBR to use when sending corresponding packets. An ASBR receives via a routing protocol from a particular router in the same autonomous system, a plurality of same-labeled received routes advertised with a same first forwarding label within a merging context. In response to each of the plurality of same-labeled received routes having the same first forwarding label to use to forward packets to the particular router and being in the same merging context, the ASBR determines a merged forwarding label and advertises to a peer ASBR in another autonomous system (AS) each of the plurality of same-labeled received routes with the merged forwarding label for the peer ASBR to use to forward packets to the ASBR.
摘要翻译：在一个实施例中，自治系统边界路由器（ASBR）通过相同的转发标签通告用于ASBR在发送相应分组时使用的合并上下文的接收的通告路由的相同转发标签。 ASBR经由来自同一自治系统中的特定路由器的路由协议接收多个相同标记的接收路由，其在合并上下文中以相同的第一转发标签通告。响应于具有相同的第一转发标签的多个相同标记的接收到的路由中的每一个被用于将数据包转发到特定路由器并处于相同的合并上下文中，ASBR确定合并的转发标签，并通告给对等体ASBR 所述多个相同标记的接收路由中的每一个具有用于对等ASBR用于将分组转发到ASBR的合并转发标签的另一自治系统（AS）。

3. 发明授权

US09331974B2 Connecting layer-2 domains over layer-3 networks 有权
公开(公告)号：US09331974B2
公开(公告)日：2016-05-03
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 , H04L29/12 , H04L12/701 , H04L12/721 , H04L12/747
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.

4. 发明申请

US20140226652A1 Network Interconnection Over A Core Network 有权
标题翻译：核心网络的网络互连
公开(公告)号：US20140226652A1
公开(公告)日：2014-08-14
申请号：US13764500
申请日：2013-02-11
申请人： Dhananjaya Rao , Victor M. Moreno , Sameer D. Merchant , Hasmit S. Grover
发明人： Dhananjaya Rao , Victor M. Moreno , Sameer D. Merchant , Hasmit S. Grover
IPC分类号： H04L12/56
CPC分类号： H04L45/54 , H04L45/04
摘要： According to one embodiment, a method includes receiving, by a first edge device at a first site, a first site overlay control plane message including control plane information. The first edge device translates the first site overlay control plane message into a core overlay control plane message. The first edge device sends the core overlay control plane message over a core network to a second edge device at a second site.
摘要翻译：根据一个实施例，一种方法包括通过第一站点处的第一边缘设备接收包括控制平面信息的第一站点覆盖控制平面消息。第一边缘设备将第一站点覆盖控制平面消息转换为核心覆盖控制平面消息。第一边缘设备通过核心网络将核心覆盖控制平面消息发送到第二站点处的第二边缘设备。

5. 发明授权

US08166205B2 Overlay transport virtualization 有权
标题翻译：覆盖传输虚拟化
公开(公告)号：US08166205B2
公开(公告)日：2012-04-24
申请号：US11888077
申请日：2007-07-31
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。

6. 发明申请

US20090037607A1 Overlay transport virtualization 有权
标题翻译：覆盖传输虚拟化
公开(公告)号：US20090037607A1
公开(公告)日：2009-02-05
申请号：US11888077
申请日：2007-07-31
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。

7. 发明授权

US09461943B2 Network assisted virtual machine mobility 有权
标题翻译：网络辅助虚拟机移动性
公开(公告)号：US09461943B2
公开(公告)日：2016-10-04
申请号：US13612012
申请日：2012-09-12
申请人： Hrishikesh Narasimhan , Vipin Jain , Sukhesh Halemane , Dhananjaya Rao
发明人： Hrishikesh Narasimhan , Vipin Jain , Sukhesh Halemane , Dhananjaya Rao
IPC分类号： G06F15/16 , H04L12/931 , G06F11/20 , H04L12/751 , H04L12/24 , H04L29/12
CPC分类号： H04L49/70 , G06F11/203 , H04L41/0813 , H04L45/02 , H04L61/103 , H04L61/2076 , H04L61/2084 , H04L61/6009
摘要： A first addressing message is received at a first switch in a network fabric indicating that a first virtual machine has undergone migration from connection to a first virtual switch at a first server to connection to a second virtual switch at a second server. A route advertisement message is then transmitted from the first switch to at least a second switch in the network fabric. This route advertisement is configured to cause the second switch to transmit a second addressing message to a second virtual machine connected to the first virtual switch. The second addressing message provides the second virtual machine with updated addressing information for the first virtual machine. A third addressing message is also transmitted from the first switch to the first virtual machine to provide the first virtual machine with updated addressing information for the second virtual machine.
摘要翻译：在网络结构中的第一交换机处接收到第一寻址消息，指示第一虚拟机已经从第一服务器处的连接迁移到第一虚拟交换机，以连接到第二服务器处的第二虚拟交换机。然后，路由通告消息从第一交换机发送到网络结构中的至少第二交换机。该路由通告被配置为使得第二交换机向连接到第一虚拟交换机的第二虚拟机发送第二寻址消息。第二寻址消息为第二虚拟机提供用于第一虚拟机的更新的寻址信息。第三寻址消息也从第一交换机发送到第一虚拟机，以向第一虚拟机提供用于第二虚拟机的更新的寻址信息。

8. 发明授权

US09363225B2 Connecting layer-2 domains over layer-3 networks 有权
标题翻译：通过第3层网络连接第2层域
公开(公告)号：US09363225B2
公开(公告)日：2016-06-07
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 , H04L29/12 , H04L12/701 , H04L12/721 , H04L12/747
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。

9. 发明申请

US20130198558A1 Dual Adjacency Between Edge Devices at a Network Site 有权
公开(公告)号：US20130198558A1
公开(公告)日：2013-08-01
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： G06F15/16 , G06F11/07
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.

10. 发明授权

US08488491B2 Compressed virtual routing and forwarding in a communications network 有权
标题翻译：在通信网络中压缩虚拟路由和转发
公开(公告)号：US08488491B2
公开(公告)日：2013-07-16
申请号：US12590656
申请日：2009-11-12
申请人： Victor Moreno , Dino Farinacci , Patrice Bellagamba , Hasmit Grover , Dhananjaya Rao
发明人： Victor Moreno , Dino Farinacci , Patrice Bellagamba , Hasmit Grover , Dhananjaya Rao
IPC分类号： H04L12/28
CPC分类号： H04L45/04 , H04L45/64
摘要： In one embodiment, an apparatus includes a plurality of network site interfaces in communication with two or more networks, each of the networks associated with a different Virtual Routing and Forwarding (VRF) instance, and a processor configured for mapping the VRF instances to an Interior Gateway Protocol (IGP) adjacency and transmitting VRF information on the IGP adjacency along with a VRF identifier indicating the network associated with the VRF information. A method is also disclosed.
摘要翻译：在一个实施例中，设备包括与两个或更多个网络通信的多个网络站点接口，每个网络与不同的虚拟路由和转发（VRF）实例相关联，以及被配置为将VRF实例映射到内部的处理器网关协议（IGP）邻接，并发送关于IGP邻接的VRF信息以及指示与VRF信息相关联的网络的VRF标识符。还公开了一种方法。

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