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1. 发明授权

US08867403B2 Virtual network overlays 有权
标题翻译：虚拟网络覆盖
公开(公告)号：US08867403B2
公开(公告)日：2014-10-21
申请号：US13212790
申请日：2011-08-18
申请人： Amitabha Biswas , Jayakrishna Kidambi , Nilanjan Mukherjee , Vijoy A. Pandey
发明人： Amitabha Biswas , Jayakrishna Kidambi , Nilanjan Mukherjee , Vijoy A. Pandey
IPC分类号： H04L12/28 , H04L12/931 , H04L12/715 , H04L12/46 , H04L29/08
CPC分类号： H04L12/4641 , G06F9/45558 , G06F2009/45595 , H04L12/4633 , H04L12/4679 , H04L45/64 , H04L45/74 , H04L49/00 , H04L49/356 , H04L49/70 , H04L67/2804
摘要： Systems are provided for overlaying a virtual network on a physical network in a data center environment. An overlay system is arranged in an overlay virtual network to include an overlay agent and an overlay helper. The overlay agent is implemented in an access switch. The overlay helper is implemented in an end station that is in communication with the access switch. Overlay parameters in compliance with an in-band protocol are transmitted between the overlay agent and the overlay helper.
摘要翻译：提供系统以在数据中心环境中的物理网络上覆盖虚拟网络。覆盖系统布置在覆盖虚拟网络中以包括覆盖代理和覆盖帮助器。覆盖代理在接入交换机中实现。覆盖帮助器在与接入交换机通信的终端站中实现。覆盖代理和覆盖帮助器之间传输符合带内协议的覆盖参数。

2. 发明授权

US08767722B2 Data traffic handling in a distributed fabric protocol (DFP) switching network architecture 有权
标题翻译：分布式架构协议（DFP）交换网络架构中的数据流量处理
公开(公告)号：US08767722B2
公开(公告)日：2014-07-01
申请号：US13594993
申请日：2012-08-27
申请人： Keshav Kamble , Amitabha Biswas , Dar-Ren Leu , Chandarani J. Mendon , Nilanjan Mukherjee , Vijoy Pandey
发明人： Keshav Kamble , Amitabha Biswas , Dar-Ren Leu , Chandarani J. Mendon , Nilanjan Mukherjee , Vijoy Pandey
IPC分类号： H04L12/50 , H04Q11/00
CPC分类号： H04L49/70 , H04L47/20 , H04L47/627 , H04L49/356
摘要： A switching network includes an upper tier having a master switch and a lower tier including a plurality of lower tier entities. The master switch, which has a plurality of ports each coupled to a respective lower tier entity, implements on each of the ports a plurality of virtual ports each corresponding to a respective one of a plurality of remote physical interfaces (RPIs) at the lower tier entity coupled to that port. Data traffic communicated between the master switch and RPIs is queued within virtual ports that correspond to the RPIs with which the data traffic is communicated. The master switch applies data handling to the data traffic in accordance with a control policy based at least upon the virtual port in which the data traffic is queued, such that the master switch applies different policies to data traffic queued to two virtual ports on the same port of the master switch.
摘要翻译：交换网络包括具有主交换机的上层和包括多个下层实体的较低层。主交换机具有多个端口，每个端口各自耦合到相应的下层实体，在每个端口上实现多个虚拟端口，每个虚拟端口对应于下层的多个远程物理接口（RPI）中的相应一个实体耦合到该端口。在主交换机和RPI之间通信的数据业务在对应于数据业务与之通信的RPI的虚拟端口内排队。主交换机至少基于数据流量排队的虚拟端口，根据控制策略对数据流量应用数据处理，使得主交换机将不同的策略应用于排队到同一个虚拟端口的数据业务主交换机的端口

3. 发明申请

US20130322446A1 VIRTUAL ETHERNET PORT AGGREGATION (VEPA)-ENABLED MULTI-TENANT OVERLAY NETWORK 有权
标题翻译：虚拟以太网端口聚合（VEPA） - 启用多重覆盖网络
公开(公告)号：US20130322446A1
公开(公告)日：2013-12-05
申请号：US13489269
申请日：2012-06-05
申请人： Amitabha Biswas , Uday S. Nagaraj
发明人： Amitabha Biswas , Uday S. Nagaraj
IPC分类号： H04L12/56
CPC分类号： H04L12/4633 , H04L49/70
摘要： In accordance with one embodiment, a system that may be used for enabling Virtual Ethernet Port Aggregation (VEPA) in an overlay network includes a host server providing a virtual switch, the virtual switch including logic adapted for receiving a packet from a first virtual machine (VM) on the host server, logic adapted for determining that a destination of the packet is a second VM common to the host server, logic adapted for encapsulating the packet with a tunnel header to form an overlay packet, logic adapted for sending the overlay packet via a tunnel to a physical networking element to have inspection services performed thereon, logic adapted for receiving the overlay packet from the physical networking element, logic adapted for de-encapsulating the overlay packet to retrieve a serviced packet, and logic adapted for forwarding the serviced packet to the second VM, wherein the tunnel header includes tenant specific information.
摘要翻译：根据一个实施例，可以用于在覆盖网络中启用虚拟以太网端口聚合（VEPA）的系统包括提供虚拟交换机的主机服务器，所述虚拟交换机包括适于从第一虚拟机接收分组的逻辑（ VM），用于确定分组的目的地是主机服务器公共的第二VM的逻辑，适于用隧道报头封装分组以形成覆盖分组的逻辑，适于发送覆盖分组的逻辑经由到物理网络元件的隧道以具有在其上执行的检测服务，适于从物理网络元件接收覆盖分组的逻辑，适用于解封装覆盖分组以检索服务分组的逻辑，以及适于转发所服务的分组到第二VM，其中隧道报头包括租户特定信息。

4. 发明申请

US20120291026A1 METHOD FOR PROVIDING LOCATION INDEPENDENT DYNAMIC PORT MIRRORING ON DISTRIBUTED VIRTUAL SWITCHES 有权
标题翻译：在分布式虚拟交换机上提供独立动态端口映射的方法
公开(公告)号：US20120291026A1
公开(公告)日：2012-11-15
申请号：US13107903
申请日：2011-05-14
申请人： Amitabha Biswas , John I. Buswell , Jayakrishna Kidambi , Harshad S. Padhye , Vijoy Pandey , Dorit Rond
发明人： Amitabha Biswas , John I. Buswell , Jayakrishna Kidambi , Harshad S. Padhye , Vijoy Pandey , Dorit Rond
IPC分类号： G06F9/455
CPC分类号： H04L49/208 , H04L43/026 , H04L49/70 , H04L67/10 , Y02D50/30
摘要： Techniques for providing location independent dynamic port mirroring on distributed virtual switches is disclosed. A controller is provided to configure one or more virtual switches within a group of physical machines to appear as a set of distributed virtual switches. In response to the receipt of a data packet at a port of a physical machine, a determination is made whether or not the port has a monitor port located on the physical machine. If the port has a monitor port located on the same physical machine, a copy of the data packet is sent to the monitor port of the physical machine. If the port has a monitor port located on a different physical machine, a copy of the data packet along with an identification (ID) of the port and an ID of the monitor port are encapsulated, and the encapsulated information are sent to a controller.
摘要翻译：公开了在分布式虚拟交换机上提供位置独立的动态端口镜像的技术。提供控制器来配置一组物理机器内的一个或多个虚拟交换机，以显示为一组分布式虚拟交换机。响应于在物理机的端口处接收到数据分组，确定端口是否具有位于物理机器上的监视端口。如果端口具有位于同一物理机上的监视端口，则将数据包的副本发送到物理机的监视端口。如果端口具有位于不同物理机器上的监视端口，则会封装数据包的副本以及端口的标识（ID）和监控端口的ID，并将封装的信息发送到控制器。

5. 发明授权

US08984140B2 Managing connections through an aggregation of network resources providing offloaded connections between applications over a network 有权
标题翻译：通过网络资源的聚合管理连接，通过网络提供应用之间的卸载连接
公开(公告)号：US08984140B2
公开(公告)日：2015-03-17
申请号：US11012510
申请日：2004-12-14
申请人： Prashant Modi , Amitabha Biswas , Yiu Yip , Doris Sayon , Kathryn Hampton , Mehrdad Khalili
发明人： Prashant Modi , Amitabha Biswas , Yiu Yip , Doris Sayon , Kathryn Hampton , Mehrdad Khalili
IPC分类号： G06F15/16 , H04L29/12 , H04L12/701 , H04L12/861 , H04L29/14
CPC分类号： H04L29/12009 , H04L29/1233 , H04L45/00 , H04L49/90 , H04L61/25 , H04L69/40
摘要： A computer system establishes offloaded connections over a network between requestor applications running on client nodes and server applications running on a server node. The connections are established through an aggregated plurality of network resources of the server node. Each of the aggregated plurality of server resources is operable to provide offloaded connections over the network and each is assigned to a unique private IP address. Connect queries are generated on behalf of requesting applications. Each of the connect queries specifies one of the server applications using a first endpoint tuple. The first endpoint tuple includes one of one or more IP addresses identifying the server node publicly on the network and a first port number uniquely identifying the server application. A valid set of bypass endpoint tuples are obtained that are translated from the first endpoint tuple specified in the query. Each tuple of the set includes a different one of the assigned private IP addresses. A connect request is issued over the network that specifies a selected one of the valid set of bypass endpoint tuples as the destination transport address for the connection.
摘要翻译：计算机系统通过在客户机节点上运行的请求程序应用程序和在服务器节点上运行的服务器应用程序之间的网络建立卸载连接。通过服务器节点的聚合多个网络资源建立连接。聚合的多个服务器资源中的每一个可操作以通过网络提供卸载的连接，并且每个分配给唯一的专用IP地址。连接查询是代表请求的应用程序生成的。每个连接查询使用第一个端点元组指定服务器应用程序之一。第一端点元组包括在网络上公开地标识服务器节点的一个或多个IP地址中的一个和唯一地标识服务器应用的第一端口号。从查询中指定的第一个端点元组获得一组有效的旁路端点元组。集合的每个元组包括分配的专用IP地址中的不同的一个。通过网络发出连接请求，该请求将有选择的旁路端点元组中的一个指定为连接的目标传输地址。

6. 发明授权

US08793685B2 Techniques for operating virtual switches in a virtualized computing environment 有权
标题翻译：在虚拟化计算环境中操作虚拟交换机的技术
公开(公告)号：US08793685B2
公开(公告)日：2014-07-29
申请号：US13107433
申请日：2011-05-13
申请人： Jayakrishna Kidambi , Amitabha Biswas , John Buswell , Dorit Rond
发明人： Jayakrishna Kidambi , Amitabha Biswas , John Buswell , Dorit Rond
IPC分类号： G06F9/455
CPC分类号： H04L49/70 , H04L49/351 , H04L49/65
摘要： A technique for operating a virtual switch includes determining network connection requirements for virtual machines controlled by a virtual machine monitor. Resources available, for processing data traffic of the virtual machines, are also determined. Finally, based on the network connection requirements and the resources available, a port of a virtual switch is selected to operate as a virtual Ethernet bridge or a virtual Ethernet port aggregator.
摘要翻译：用于操作虚拟交换机的技术包括确定由虚拟机监视器控制的虚拟机的网络连接要求。还可以确定可用于处理虚拟机的数据流量的资源。最后，根据网络连接要求和可用资源，选择虚拟交换机的端口作为虚拟以太网桥或虚拟以太网端口聚合器。

7. 发明申请

US20140050091A1 LOAD BALANCING OVERLAY NETWORK TRAFFIC USING A TEAMED SET OF NETWORK INTERFACE CARDS 有权
标题翻译：负载平衡网络交通使用一组网络接口卡
公开(公告)号：US20140050091A1
公开(公告)日：2014-02-20
申请号：US13588578
申请日：2012-08-17
申请人： Amitabha Biswas , Jayakrishna Kidambi , Santosh Rajagopalan , Tang Gang
发明人： Amitabha Biswas , Jayakrishna Kidambi , Santosh Rajagopalan , Tang Gang
IPC分类号： H04L12/56 , H04L12/24
CPC分类号： H04L45/7453 , G06F9/455 , H04L12/4641 , H04L45/64 , H04L61/103 , H04L67/1004 , H04L67/1023 , H04L69/04 , H04L69/22
摘要： A system includes a server including: logic adapted for receiving traffic from a virtual machine (VM), the traffic including at least one packet, logic adapted for hashing at least a portion of the at least one packet according to a hashing algorithm to obtain a hash value, and logic adapted for selecting an uplink based on the hash value; at least one accelerated network interface card (NIC), each accelerated NIC including: network ports including multiple Peripheral Component Interconnect express (PCIe) ports adapted for communicating with the server and a network, each network port including an uplink, logic adapted for encapsulating the at least one packet into an overlay-encapsulated packet, logic adapted for storing a media access control (MAC) address corresponding to the selected uplink as a source MAC (SMAC) address in an outer header of the overlay-encapsulated packet, and logic adapted for sending the overlay-encapsulated packet via the selected uplink.
摘要翻译：一种系统包括：服务器，包括：适于从虚拟机（VM）接收流量的逻辑，所述流量包括至少一个分组，适于根据散列算法散列所述至少一个分组的至少一部分的逻辑，以获得散列值和适于基于所述散列值来选择上行链路的逻辑; 至少一个加速网络接口卡（NIC），每个加速NIC包括：网络端口，包括适于与服务器和网络通信的多个外围组件互连快速（PCIe）端口，每个网络端口包括上行链路，适于封装将至少一个分组转换成覆盖封装的分组，适用于存储对应于所选择的上行链路的媒体访问控制（MAC）地址作为覆盖封装分组的外部报头中的源MAC（SMAC）地址的逻辑，以及逻辑适配用于经由所选择的上行链路发送覆盖封装的分组。

8. 发明申请

US20060129676A1 Managing connections through an aggregation of network resources providing offloaded connections between applications over a network 有权
标题翻译：通过网络资源的聚合管理连接，通过网络提供应用之间的卸载连接
公开(公告)号：US20060129676A1
公开(公告)日：2006-06-15
申请号：US11012510
申请日：2004-12-14
申请人： Prashant Modi , Amitabha Biswas , Yiu Yip , Doris Sayon , Kathryn Hampton , Mehrdad Khalili
发明人： Prashant Modi , Amitabha Biswas , Yiu Yip , Doris Sayon , Kathryn Hampton , Mehrdad Khalili
IPC分类号： G06F15/16
CPC分类号： H04L29/12009 , H04L29/1233 , H04L45/00 , H04L49/90 , H04L61/25 , H04L69/40
摘要： A computer system establishes offloaded connections over a network between requester applications running on client nodes and server applications running on a server node. The connections are established through an aggregated plurality of network resources of the server node. Each of the aggregated plurality of server resources is operable to provide offloaded connections over the network and each is assigned to a unique private IP address. Connect queries are generated on behalf of requesting applications. Each of the connect queries specifies one of the server applications using a first endpoint tuple. The first endpoint tuple includes one of one or more IP addresses identifying the server node publicly on the network and a first port number uniquely identifying the server application. A valid set of bypass endpoint tuples are obtained that are translated from the first endpoint tuple specified in the query. Each tuple of the set includes a different one of the assigned private IP addresses. A connect request is issued over the network that specifies a selected one of the valid set of bypass endpoint tuples as the destination transport address for the connection.
摘要翻译：计算机系统通过在客户机节点上运行的请求者应用程序和在服务器节点上运行的服务器应用程序之间的网络建立卸载的连接。通过服务器节点的聚合多个网络资源建立连接。聚合的多个服务器资源中的每一个可操作以通过网络提供卸载的连接，并且每个分配给唯一的专用IP地址。连接查询是代表请求的应用程序生成的。每个连接查询使用第一个端点元组指定服务器应用程序之一。第一端点元组包括在网络上公开地标识服务器节点的一个或多个IP地址中的一个和唯一地标识服务器应用的第一端口号。从查询中指定的第一个端点元组获得一组有效的旁路端点元组。集合的每个元组包括分配的专用IP地址中的不同的一个。通过网络发出连接请求，该请求将有选择的旁路端点元组中的一个指定为连接的目标传输地址。

9. 发明申请

US20130070761A1 SYSTEMS AND METHODS FOR CONTROLLING A NETWORK SWITCH 审中-公开
标题翻译：用于控制网络开关的系统和方法
公开(公告)号：US20130070761A1
公开(公告)日：2013-03-21
申请号：US13237143
申请日：2011-09-20
申请人： Keshav Govind Kamble , Vijoy A. Pandey , Dar-Ren Leu , Jayakrishua Kidambi , Dayavanti G. Kamath , Amitabha Biswas , Nilanjan Mukherjee
发明人： Keshav Govind Kamble , Vijoy A. Pandey , Dar-Ren Leu , Jayakrishua Kidambi , Dayavanti G. Kamath , Amitabha Biswas , Nilanjan Mukherjee
IPC分类号： H04L12/56
CPC分类号： H04L49/253
摘要： Systems and methods are provided for controlling a network switch. At least one forwarding element of the distributed switch is positioned at a first location of a network. A control element of the distributed switch is positioned at a second location of the network. The at least one forwarding element is controlled from the control element by establishing a communication between the forwarding element and the control element via the network.
摘要翻译：提供了用于控制网络交换机的系统和方法。分布式交换机的至少一个转发元件位于网络的第一位置。分布式交换机的控制元件位于网络的第二位置。通过经由网络建立转发元件和控制元件之间的通信，从控制元件控制至少一个转发元件。

10. 发明申请

US20070162559A1 Protocol flow control 有权
标题翻译：协议流控制
公开(公告)号：US20070162559A1
公开(公告)日：2007-07-12
申请号：US11332035
申请日：2006-01-12
申请人： Amitabha Biswas , Prashant Modi
发明人： Amitabha Biswas , Prashant Modi
IPC分类号： G06F15/167
CPC分类号： H04L47/10 , H04L47/39 , H04L47/50 , H04L47/6225
摘要： In a flow control method, operation flow is controlled on a per connection basis. The method comprises managing a sending peer to prevent overflow of a receiving peer's receiver credits and allocating a number of send buffers at the sending peer greater than or equal to the maximum number of receiver credits that can be indicated by the receiving peer. The technique prevents the sending peer from overflowing its set of send buffers, arising due to re-use, without taking completions on operations queued to a Send Queue.
摘要翻译：在流量控制方法中，基于每个连接来控制操作流程。该方法包括管理发送对等体以防止接收对等体的接收者信用的上溢，并且在发送对等体上分配大于或等于可由接收对等体指示的接收者信用的最大数目的多个发送缓冲器。该技术防止发送对等体溢出其由于重用而产生的发送缓冲区集合，而不对队列到发送队列的操作进行完成。

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