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11. 发明授权

US08805990B2 Load balancing for single-address tenants 有权
标题翻译：单地址租户的负载均衡
公开(公告)号：US08805990B2
公开(公告)日：2014-08-12
申请号：US13547805
申请日：2012-07-12
申请人： Ashwin Murthy , Parveen Kumar Patel , Deepak Bansal , Marios Zikos
发明人： Ashwin Murthy , Parveen Kumar Patel , Deepak Bansal , Marios Zikos
IPC分类号： G06F15/173
CPC分类号： G06F9/5083 , G06F15/173 , H04L45/00 , H04L45/38 , H04L45/72 , H04L67/10 , H04L67/1027 , H04L67/34
摘要： When a load balancer detects that a virtual address is associated with a single destination address, the load balancer sets a flag to distinguish the virtual address from virtual addresses that are associated with a plurality of destination addresses. The load balancer instructs the router to bypass the load balancer for network packets that are addressed to the virtual address, and refrains from storing subsequent flow state for the virtual address. When the virtual address is to be scaled up with an additional destination address, the load balancer sets a flag to distinguish the virtual address from virtual addresses that are associated with a single destination addresses. The load balancer instructs the router to route network packets that are addressed to the virtual address through the load balancer, instead of bypassing the load balancer, and starts storing flow state for the virtual address.
摘要翻译：当负载平衡器检测到虚拟地址与单个目的地地址相关联时，负载平衡器设置标志以区分虚拟地址与与多个目的地地址相关联的虚拟地址。负载平衡器指示路由器绕过负载平衡器，寻找到虚拟地址的网络数据包，并且不保存虚拟地址的后续流状态。当虚拟地址要用额外的目标地址放大时，负载均衡器设置一个标志，以区分虚拟地址与与单个目标地址相关联的虚拟地址。负载平衡器指示路由器通过负载均衡器路由寻址到虚拟地址的网络数据包，而不是绕过负载平衡器，并开始存储虚拟地址的流状态。

12. 发明申请

US20110283017A1 Interconnecting Members of a Virtual Network 有权
标题翻译：虚拟网络的互连成员
公开(公告)号：US20110283017A1
公开(公告)日：2011-11-17
申请号：US12780673
申请日：2010-05-14
申请人： Hasan Alkhatib , Changhoon Kim , Geoff Outhred , Deepak Bansal , Albert Greenberg , Dave Maltz , Parveen Patel
发明人： Hasan Alkhatib , Changhoon Kim , Geoff Outhred , Deepak Bansal , Albert Greenberg , Dave Maltz , Parveen Patel
IPC分类号： G06F15/173 , G06F9/455
CPC分类号： H04L12/4641 , H04L12/4633 , H04L45/04 , H04L45/42 , H04L45/46 , H04L45/566 , H04L45/586
摘要： Computerized methods, systems, and computer-readable media are provided for establishing and managing a virtual network (V-net) and virtual machine (VM) switches that enable protected and isolated interconnections between members of the V-net. The V-net members include an originating network adapter that generates data packets addressed to a destination network adapter. Upon detecting data-packet generation, a source-side VM switch accesses a forwarding table associated with the V-net, ascertains a destination-side, VM-switch locator that corresponds to an identifier of the destination network adapter, and modifies the data packets to include the identifier. The forwarding table represents a mapping between the members of the V-net and VM switches located on respective nodes within the data center. In operation, the mapping enforces communication policies that govern data-packet traffic. Upon receiving the data packets, the destination-side VM switch restores the data packets and forwards them to the destination network adapter.
摘要翻译：提供了计算机化方法，系统和计算机可读介质，用于建立和管理虚拟网络（V-net）和虚拟机（VM）交换机，从而实现V-net成员之间的保护和隔离互连。 V-net成员包括生成发往目标网络适配器的数据包的始发网络适配器。在检测到数据包生成时，源侧VM交换机访问与V-net相关联的转发表，确定与目的网络适配器的标识符相对应的目的地侧的VM交换机定位符，并修改数据包包括标识符。转发表表示位于数据中心内的相应节点上的V-net和VM交换机的成员之间的映射。在操作中，映射强制执行数据包流量的通信策略。目的端VM交换机接收到数据包后，恢复数据包并将其转发到目的网络适配器。

13. 发明申请

US20120303809A1 OFFLOADING LOAD BALANCING PACKET MODIFICATION 审中-公开
标题翻译：卸载负载均衡包修改
公开(公告)号：US20120303809A1
公开(公告)日：2012-11-29
申请号：US13115444
申请日：2011-05-25
申请人： Parveen Patel , Deepak Bansal , Changhoon Kim , Marios Zikos , Volodymyr Ivanov
发明人： Parveen Patel , Deepak Bansal , Changhoon Kim , Marios Zikos , Volodymyr Ivanov
IPC分类号： G06F15/16
CPC分类号： H04L67/1025 , H04L45/00 , H04L47/125 , H04L61/2532 , H04L61/2546 , H04L67/1029 , H04L67/288 , H04L69/16 , H04L69/22
摘要： The present invention extends to methods, systems, and computer program products for off loading load balancing packet modification. Embodiments of the invention can be used to offload the load of forwarding packets back to packet senders. Load balancers and/or the NAT devices can handle the first few packets of a connection to formulate connection mappings and then are removed from further communication for the connections. For example, a load balancer or NAT device makes the corresponding load balancing or the NAT decision based on a first packet and then informs the sender of the data of the decision. From then on, the sender can directly send the data to the receiver without having to go through the load balancer or NAT.
摘要翻译：本发明扩展到用于卸载负载平衡分组修改的方法，系统和计算机程序产品。本发明的实施例可以用于将转发分组的负载卸载回分组发送者。负载平衡器和/或NAT设备可以处理连接的前几个数据包，以形成连接映射，然后从连接的进一步通信中移除。例如，负载平衡器或NAT设备基于第一个分组进行相应的负载平衡或NAT决定，然后将发送方通知该决定的数据。从那时起，发送方可以直接将数据发送到接收方，而无需经过负载平衡器或NAT。

14. 发明授权

US08407366B2 Interconnecting members of a virtual network 有权
标题翻译：互连虚拟网络的成员
公开(公告)号：US08407366B2
公开(公告)日：2013-03-26
申请号：US12780673
申请日：2010-05-14
申请人： Hasan Alkhatib , Changhoon Kim , Geoff Outhred , Deepak Bansal , Albert Greenberg , Dave Maltz , Parveen Patel
发明人： Hasan Alkhatib , Changhoon Kim , Geoff Outhred , Deepak Bansal , Albert Greenberg , Dave Maltz , Parveen Patel
IPC分类号： G06F15/173
CPC分类号： H04L12/4641 , H04L12/4633 , H04L45/04 , H04L45/42 , H04L45/46 , H04L45/566 , H04L45/586
摘要： Computerized methods, systems, and computer-readable media are provided for establishing and managing a virtual network (V-net) and virtual machine (VM) switches that enable protected and isolated interconnections between members of the V-net. The V-net members include an originating network adapter that generates data packets addressed to a destination network adapter. Upon detecting data-packet generation, a source-side VM switch accesses a forwarding table associated with the V-net, ascertains a destination-side, VM-switch locator that corresponds to an identifier of the destination network adapter, and modifies the data packets to include the identifier. The forwarding table represents a mapping between the members of the V-net and VM switches located on respective nodes within the data center. In operation, the mapping enforces communication policies that govern data-packet traffic. Upon receiving the data packets, the destination-side VM switch restores the data packets and forwards them to the destination network adapter.
摘要翻译：提供了计算机化方法，系统和计算机可读介质，用于建立和管理虚拟网络（V-net）和虚拟机（VM）交换机，从而实现V-net成员之间的保护和隔离互连。 V-net成员包括生成发往目标网络适配器的数据包的始发网络适配器。在检测到数据包生成时，源侧VM交换机访问与V-net相关联的转发表，确定与目的网络适配器的标识符相对应的目的地侧的VM交换机定位符，并修改数据包包括标识符。转发表表示位于数据中心内的相应节点上的V-net和VM交换机的成员之间的映射。在操作中，映射强制执行数据包流量的通信策略。目的端VM交换机接收到数据包后，恢复数据包并将其转发到目的网络适配器。

15. 发明授权

US09233955B2 Process for the preparation of azilsartan medoxomil 有权
标题翻译：制备吖唑烷酯的方法
公开(公告)号：US09233955B2
公开(公告)日：2016-01-12
申请号：US13983521
申请日：2012-01-24
申请人： Deepak Bansal , Himanchal Mishra , Shailendr Kumar Dubey , Alka Srivastava Choudhary , Dharam Vir , Ashutosh Agarwal
发明人： Deepak Bansal , Himanchal Mishra , Shailendr Kumar Dubey , Alka Srivastava Choudhary , Dharam Vir , Ashutosh Agarwal
IPC分类号： C07D413/10 , C07D413/14
CPC分类号： C07D413/10 , C07D413/14
摘要： The present invention relates to an improved process for the preparation of azilsartan or its esters or salts thereof. Specifically, the invention provides a method for the preparation of highly pure methyl 1-[[2′-(4,5-dihydro-5-oxo-4H-1,2,4-oxa-diazol-3-yl)biphenyl-4-yl]methyl]-2-ethoxy-1H-benzimidazole-7-carboxylate an intermediate compound of formula (4) for azilsartan medoxomil with reduced content of desethyl impurity. The invention also involves the use of highly pure methyl 1-[[2′-(4,5-dihydro-5-oxo-4H-1,2,4-oxadiazol-3-yl)biphenyl-4-yl]methyl]-2-ethoxy-1H-benzimidazole-7-carboxylate in the preparation of azilsartan or its esters or salts thereof, preferably medoxomil with reduced content of desethyl impurity.
摘要翻译：本发明涉及制备吖唑烷或其酯或其盐的改进方法。具体地说，本发明提供了制备高纯度1 - [[2' - （4,5-二氢-5-氧代-4H-1,2,4-氧杂 - 二唑-3-基）联苯基] 吡啶-4-基]甲基] -2-乙氧基-1H-苯并咪唑-7-羧酸甲酯，其中式（4）的中间体化合物用于脱乙基杂质含量较低的吖唑烷酮。本发明还涉及使用高纯度的1 - [[2' - （4,5-二氢-5-氧代-4H-1,2,4-恶二唑-3-基）联苯-4-基]甲基] -2-乙氧基-1H-苯并咪唑-7-羧酸乙酯制备吖唑烷或其酯或其盐，优选含有脱乙基杂质含量的内酯。

16. 发明授权

US08510447B2 Direct addressability and direct server return 有权
标题翻译：直接可寻址性和直接的服务器返回
公开(公告)号：US08510447B2
公开(公告)日：2013-08-13
申请号：US13585215
申请日：2012-08-14
申请人： Deepak Bansal , Priyank Ramesh Warkhede , Thiruvengadam Venketesan
发明人： Deepak Bansal , Priyank Ramesh Warkhede , Thiruvengadam Venketesan
IPC分类号： G06F15/173
CPC分类号： H04L67/1008 , H04L12/4641 , H04L29/12952 , H04L61/6077 , H04L67/10 , H04L67/1002 , H04L67/28
摘要： Cloud computing platforms having computer-readable media that perform methods for direct addressability and direct server return are provided. The cloud computing platform includes a load balancer and several servers. The servers are configured with public addresses, private addresses, and an address of the load balancer. The loopback interface of the servers is configured with the address of the load balancer. This allows a server to bypass the load balancer when replying to communication messages. Additionally, the public and private addresses of the servers enable direct addressability in the cloud computing platform. Accordingly, an application executing in the cloud computing platform may connect two or more clients on the same server.
摘要翻译：提供了具有执行直接寻址能力和直接服务器返回方法的计算机可读介质的云计算平台。云计算平台包括负载平衡器和多个服务器。服务器配置有公共地址，私有地址和负载均衡器的地址。服务器的环回接口配置了负载均衡器的地址。这允许服务器在回复通信消息时绕过负载均衡器。另外，这些服务器的公用和私有地址可以在云计算平台上直接寻址。因此，在云计算平台中执行的应用程序可以连接同一服务器上的两个或多个客户端。

17. 发明申请

US20130013805A1 TRANSPARENT AUTO-DISCOVERY OF NETWORK DEVICES LOGICALLY LOCATED BETWEEN A CLIENT AND SERVER 有权
标题翻译：网络设备的透明自动发现位于客户端和服务器之间
公开(公告)号：US20130013805A1
公开(公告)日：2013-01-10
申请号：US13615844
申请日：2012-09-14
申请人： Murari Sridharan , Deepak Bansal , Eran Yariv , Ronen Barenboim , Maxim Stepin , Alexander Malvsh
发明人： Murari Sridharan , Deepak Bansal , Eran Yariv , Ronen Barenboim , Maxim Stepin , Alexander Malvsh
IPC分类号： G06F15/16
CPC分类号： H04L69/16 , H04L69/163
摘要： Discovery of intermediate network devices is performed using a technique that piggybacks upon the existing standard TCP (Transport Control Protocol) “SACK” (Selective Acknowledgment) option in a SYN/ACK packet so that discovery information may be shared between pair-wise-deployed peer intermediate devices when a TCP/IP connection (Transport Control Protocol/Internet Protocol) is first established between network endpoints using a conventional three-way handshake. Use of the SACK option is combined with another technique which comprises modifying the original 16-bit value of the TCP receive window size to a special arbitrary value to mark a SYN packet as being generated by a first peer device. The marked SYN when received by the second peer device triggers that device's discovery information to be piggybacked in the SACK option of the SYN/ACK packet. The first device then piggybacks its discovery information in the SACK option of the ACK packet which completes the three-way handshake.
摘要翻译：使用在SYN / ACK分组中搭载现有标准TCP（传输控制协议）SACK（选择性确认）选项的技术来执行中间网络设备的发现，使得发现信息可以在成对部署的对等中间设备之间共享当使用传统的三次握手在网络端点之间首先建立TCP / IP连接（传输控制协议/因特网协议）时。使用SACK选项与另一种技术相结合，其中包括将TCP接收窗口大小的原始16位值修改为特殊任意值，以将SYN分组标记为由第一对等设备生成。标记的SYN在第二个对等设备接收时触发该设备的发现信息被捎带在SYN / ACK数据包的SACK选项中。然后，第一个设备在ACK包的SACK选项中搭载其发现信息，完成三次握手。

18. 发明授权

US08335858B2 Transparent auto-discovery of network devices logically located between a client and server 有权
标题翻译：网络设备的透明自动发现逻辑上位于客户端和服务器之间
公开(公告)号：US08335858B2
公开(公告)日：2012-12-18
申请号：US13169071
申请日：2011-06-27
申请人： Murari Sridharan , Deepak Bansal , Eran Yariv , Ronen Barenboim , Maxim Stepin , Alexander Malvsh
发明人： Murari Sridharan , Deepak Bansal , Eran Yariv , Ronen Barenboim , Maxim Stepin , Alexander Malvsh
IPC分类号： G06F15/16
CPC分类号： H04L69/16 , H04L69/163
摘要： Discovery of intermediate network devices is performed using a technique that piggybacks upon the existing standard TCP (Transport Control Protocol) “SACK” (Selective Acknowledgment) option in a SYN/ACK packet so that discovery information may be shared between pair-wise-deployed peer intermediate devices when a TCP/IP connection (Transport Control Protocol/Internet Protocol) is first established between network endpoints using a conventional three-way handshake. Use of the SACK option is combined with another technique which comprises modifying the original 16-bit value of the TCP receive window size to a special arbitrary value to mark a SYN packet as being generated by a first peer device. The marked SYN when received by the second peer device triggers that device's discovery information to be piggybacked in the SACK option of the SYN/ACK packet. The first device then piggybacks its discovery information in the SACK option of the ACK packet which completes the three-way handshake.
摘要翻译：使用在SYN / ACK分组中搭载现有标准TCP（传输控制协议）SACK（选择性确认）选项的技术来执行中间网络设备的发现，使得发现信息可以在成对部署的对等中间设备之间共享当使用传统的三次握手在网络端点之间首先建立TCP / IP连接（传输控制协议/因特网协议）时。使用SACK选项与另一种技术相结合，其中包括将TCP接收窗口大小的原始16位值修改为特殊任意值，以将SYN分组标记为由第一对等设备生成。标记的SYN在第二个对等设备接收时触发该设备的发现信息被捎带在SYN / ACK数据包的SACK选项中。然后，第一个设备在ACK包的SACK选项中搭载其发现信息，完成三次握手。

19. 发明申请

US20110110377A1 Employing Overlays for Securing Connections Across Networks 审中-公开
标题翻译：采用覆盖网络来保护连接
公开(公告)号：US20110110377A1
公开(公告)日：2011-05-12
申请号：US12614007
申请日：2009-11-06
申请人： Hasan Alkhatib , Deepak Bansal
发明人： Hasan Alkhatib , Deepak Bansal
IPC分类号： H04L12/56
CPC分类号： H04L29/12349 , H04L45/64 , H04L61/2507 , H04L63/0272
摘要： Computerized methods, systems, and computer-storage media for establishing and managing a virtual network overlay (“overlay”) are provided. The overlay spans between a data center and a private enterprise network and includes endpoints, of a service application, that reside in each location. The service-application endpoints residing in the data center and in the enterprise private network are reachable by data packets at physical IP addresses. Virtual presences of the service-application endpoints are instantiated within the overlay by assigning the service-application endpoints respective virtual IP addresses and maintaining an association between the virtual IP addresses and the physical IP addresses. This association facilitates routing the data packets between the service-application endpoints, based on communications exchanged between their virtual presences within the overlay. Also, the association secures a connection between the service-application endpoints within the overlay that blocks communications from other endpoints without a virtual presence in the overlay.
摘要翻译：提供了用于建立和管理虚拟网络覆盖（“覆盖”）的计算机化方法，系统和计算机存储介质。覆盖层跨越数据中心和私有企业网络，并且包括驻留在每个位置的服务应用程序的端点。驻留在数据中心和企业专用网络中的服务应用程序端点可以通过物理IP地址的数据包来访问。通过分配服务应用端点各自的虚拟IP地址并维持虚拟IP地址和物理IP地址之间的关联，在覆盖内实例化服务应用端点的虚拟存在。该关联有助于在服务应用端点之间基于在它们的虚拟存在之间交换的通信来路由数据分组。此外，该关联确保覆盖内的服务应用端点之间的连接，其阻止来自其他端点的通信，而无需在覆盖中虚拟存在。

20. 发明申请

US20110044340A1 SYSTEM AND METHOD FOR ECMP LOAD SHARING 审中-公开
标题翻译：用于ECMP负载共享的系统和方法
公开(公告)号：US20110044340A1
公开(公告)日：2011-02-24
申请号：US12900279
申请日：2010-10-07
申请人： Deepak Bansal , Yuen Wong
发明人： Deepak Bansal , Yuen Wong
IPC分类号： H04L12/56
CPC分类号： H04L45/00 , H04L45/24 , H04L45/7453 , H04L47/125 , H04L47/2408
摘要： A packet classifier and a method for routing a data packet are provided. The packet classifier includes a content addressable memory, a translation table and a parameter memory. The method includes looking up a content addressable memory for a base address into a parameter memory using a header of the data packet. The base address is related to the routes under ECMP for forwarding the data packet. From among these addresses, using multiple headers of the data packet, an adjustment to the base address is computed. The adjustment specifies an actual address to the parameter memory corresponding to a selected route for forwarding the data packet. The parameter memory is then accessed using the actual address to obtain parameter values relevant to the selected route. The data packet is then forwarded according to the parameter values thus obtained.
摘要翻译：提供了分组分类器和用于路由数据分组的方法。分组分类器包括内容可寻址存储器，转换表和参数存储器。该方法包括使用数据分组的报头查找用于基地址的内容可寻址存储器到参数存储器中。基地址与ECMP下的路由相关，用于转发数据包。从这些地址中，使用数据分组的多个头，计算对基地址的调整。该调整指定与用于转发数据分组的所选择的路由相对应的参数存储器的实际地址。然后使用实际地址访问参数存储器，以获得与所选路线相关的参数值。然后根据如此获得的参数值转发数据包。

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