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1. 发明授权

US09001663B2 Communication transport optimized for data center environment 有权
标题翻译：针对数据中心环境优化的通信传输
公开(公告)号：US09001663B2
公开(公告)日：2015-04-07
申请号：US12714266
申请日：2010-02-26
申请人： Mohammedreza Alizadeh Attar , Murari Sridharan , Parveen K. Patel , Balaji Prabhakar , David A. Maltz , Jitendra D. Padhye , Albert G. Greenberg
发明人： Mohammedreza Alizadeh Attar , Murari Sridharan , Parveen K. Patel , Balaji Prabhakar , David A. Maltz , Jitendra D. Padhye , Albert G. Greenberg
IPC分类号： G01R31/08 , H04L12/801 , H04L12/825 , H04L12/835
CPC分类号： H04L47/34 , H04L47/10 , H04L47/115 , H04L47/19 , H04L47/263 , H04L47/30
摘要： Methods and apparatus for congestion control in computer networks achieve high burst tolerance, low latency and high throughput with shallow-buffered switches. A method for controlling congestion includes transmitting a set of data packets on a network connection from a first computing device to a second computing device, identifying each data packet in the set of data packets that experienced congestion on the network connection, sending, by the second computing device to the first computing device, a sequence of bits that represents the number of data packets in the set of data packets that were identified as having experienced congestion, and adjusting a rate of transmitting data packets on the network connection based on the sequence of bits sent to the first computing device.
摘要翻译：计算机网络拥塞控制的方法和装置通过浅缓冲交换机实现高突发容忍，低延迟和高吞吐量。一种用于控制拥塞的方法包括在网络连接上从第一计算设备向第二计算设备发送一组数据分组，识别在网络连接上经历拥塞的数据分组集合中的每个数据分组，由第二计算设备到第一计算设备，表示被识别为经历拥塞的数据分组集合中的数据分组的数量的比特序列，以及基于所述网络连接的序列来调整在网络连接上传输数据分组的速率发送到第一计算设备的位。

2. 发明申请

US20110211449A1 COMMUNICATION TRANSPORT OPTIMIZED FOR DATA CENTER ENVIRONMENT 有权
标题翻译：数据中心环境优化的通信运输
公开(公告)号：US20110211449A1
公开(公告)日：2011-09-01
申请号：US12714266
申请日：2010-02-26
申请人： Mohammedreza Alizadeh Attar , Murari Sridharan , Parveen K. Patel , Balaji Prabhakar , David A. Maltz , Jitendra D. Padhye , Albert G. Greenberg
发明人： Mohammedreza Alizadeh Attar , Murari Sridharan , Parveen K. Patel , Balaji Prabhakar , David A. Maltz , Jitendra D. Padhye , Albert G. Greenberg
IPC分类号： H04L12/56
CPC分类号： H04L47/34 , H04L47/10 , H04L47/115 , H04L47/19 , H04L47/263 , H04L47/30
摘要： Methods and apparatus for congestion control in computer networks achieve high burst tolerance, low latency and high throughput with shallow-buffered switches. A method for controlling congestion includes transmitting a set of data packets on a network connection from a first computing device to a second computing device, identifying each data packet in the set of data packets that experienced congestion on the network connection, sending, by the second computing device to the first computing device, a sequence of bits that represents the number of data packets in the set of data packets that were identified as having experienced congestion, and adjusting a rate of transmitting data packets on the network connection based on the sequence of bits sent to the first computing device.
摘要翻译：计算机网络拥塞控制的方法和装置通过浅缓冲交换机实现高突发容忍，低延迟和高吞吐量。一种用于控制拥塞的方法包括在网络连接上从第一计算设备向第二计算设备发送一组数据分组，识别在网络连接上经历拥塞的数据分组集合中的每个数据分组，由第二计算设备到第一计算设备，表示被识别为经历拥塞的数据分组集合中的数据分组的数量的比特序列，以及基于所述网络连接的序列来调整在网络连接上传输数据分组的速率发送到第一计算设备的位。

3. 发明授权

US09274825B2 Virtualization gateway between virtualized and non-virtualized networks 有权
标题翻译：虚拟化和非虚拟化网络之间的虚拟化网关
公开(公告)号：US09274825B2
公开(公告)日：2016-03-01
申请号：US13210510
申请日：2011-08-16
申请人： Murari Sridharan , David A. Maltz , Narasimhan A. Venkataramaiah , Parveen K. Patel , Yu-Shun Wang
发明人： Murari Sridharan , David A. Maltz , Narasimhan A. Venkataramaiah , Parveen K. Patel , Yu-Shun Wang
IPC分类号： G06F9/455 , H04L12/46 , H04L29/08 , H04L29/12
CPC分类号： H04L61/2596 , G06F9/45558 , G06F2009/45595 , H04L12/4604 , H04L12/4633 , H04L45/74 , H04L61/2503 , H04L65/102 , H04L67/1002
摘要： Methods and apparatus are provided for controlling communication between a virtualized network and non-virtualized entities using a virtualization gateway. A packet is sent by a virtual machine in the virtualized network to a non-virtualized entity. The packet is routed by the host of the virtual machine to a provider address of the virtualization gateway. The gateway translates the provider address of the gateway to a destination address of the non-virtualized entity and sends the packet to the non-virtualized entity. The non-virtualized entity may be a physical resource, such as a physical server or a storage device. The physical resource may be dedicated to one customer or may be shared among customers.
摘要翻译：提供了用于使用虚拟化网关来控制虚拟化网络和非虚拟化实体之间的通信的方法和装置。数据包由虚拟化网络中的虚拟机发送到非虚拟化实体。数据包由虚拟机的主机路由到虚拟化网关的提供商地址。网关将网关的提供商地址转换为非虚拟化实体的目标地址，并将数据包发送到非虚拟化实体。非虚拟化实体可以是物理资源，例如物理服务器或存储设备。物理资源可以专用于一个客户，或者可以在客户之间共享。

4. 发明申请

US20130047151A1 VIRTUALIZATION GATEWAY BETWEEN VIRTUALIZED AND NON-VIRTUALIZED NETWORKS 有权
标题翻译：虚拟化和非虚拟化网络之间的虚拟化网关
公开(公告)号：US20130047151A1
公开(公告)日：2013-02-21
申请号：US13210510
申请日：2011-08-16
申请人： Murari Sridharan , David A. Maltz , Narasimhan A. Venkataramaiah , Parveen K. Patel , Yu-Shun Wang
发明人： Murari Sridharan , David A. Maltz , Narasimhan A. Venkataramaiah , Parveen K. Patel , Yu-Shun Wang
IPC分类号： G06F9/45
CPC分类号： H04L61/2596 , G06F9/45558 , G06F2009/45595 , H04L12/4604 , H04L12/4633 , H04L45/74 , H04L61/2503 , H04L65/102 , H04L67/1002
摘要： Methods and apparatus are provided for controlling communication between a virtualized network and non-virtualized entities using a virtualization gateway. A packet is sent by a virtual machine in the virtualized network to a non-virtualized entity. The packet is routed by the host of the virtual machine to a provider address of the virtualization gateway. The gateway translates the provider address of the gateway to a destination address of the non-virtualized entity and sends the packet to the non-virtualized entity. The non-virtualized entity may be a physical resource, such as a physical server or a storage device. The physical resource may be dedicated to one customer or may be shared among customers.
摘要翻译：提供了用于使用虚拟化网关来控制虚拟化网络和非虚拟化实体之间的通信的方法和装置。数据包由虚拟化网络中的虚拟机发送到非虚拟化实体。数据包由虚拟机的主机路由到虚拟化网关的提供商地址。网关将网关的提供商地址转换为非虚拟化实体的目标地址，并将数据包发送到非虚拟化实体。非虚拟化实体可以是物理资源，例如物理服务器或存储设备。物理资源可以专用于一个客户，或者可以在客户之间共享。

5. 发明授权

US08856518B2 Secure and efficient offloading of network policies to network interface cards 有权
标题翻译：安全高效地将网络策略卸载到网络接口卡
公开(公告)号：US08856518B2
公开(公告)日：2014-10-07
申请号：US13565369
申请日：2012-08-02
申请人： Murari Sridharan , Narasimhan Venkataramaiah , Yu-Shun Wang , Albert G. Greenberg , Alireza Dabagh , Pankaj Garg , Daniel M. Firestone
发明人： Murari Sridharan , Narasimhan Venkataramaiah , Yu-Shun Wang , Albert G. Greenberg , Alireza Dabagh , Pankaj Garg , Daniel M. Firestone
IPC分类号： H04L29/06 , H04L12/713
CPC分类号： H04L45/586
摘要： Techniques for efficient and secure implementation of network policies in a network interface controller (NIC) in a host computing device operating a virtualized computing environment. In some embodiments, the NIC may process and forward packets directly to their destinations, bypassing a parent partition of the host computing device. In particular, in some embodiments, the NIC may store network policy information to process and forward packets directly to a virtual machine (VM). If the NIC is unable to process a packet, then the NIC may forward the packet to the parent partition. In some embodiments, the NIC may use an encapsulation protocol to transmit address information in packet headers. In some embodiments, this address information may be communicated by the MC to the parent partition via a secure channel. The NIC may also obtain, and decrypt, encrypted addresses from the VMs for routing packets, bypassing the parent partition.
摘要翻译：用于在操作虚拟化计算环境的主机计算设备中的网络接口控制器（NIC）中有效和安全地实现网络策略的技术。在一些实施例中，NIC可以绕过主计算设备的父分区来处理和转发数据包直接到其目的地。特别地，在一些实施例中，NIC可以存储网络策略信息以直接处理和转发分组到虚拟机（VM）。如果NIC无法处理数据包，则NIC可能会将数据包转发到父分区。在一些实施例中，NIC可以使用封装协议来传送分组报头中的地址信息。在一些实施例中，该地址信息可以由MC通过安全信道传送到父分区。 NIC也可以绕过父分区，从虚拟机获取和解密路由数据包的加密地址。

6. 发明申请

US20130061047A1 SECURE AND EFFICIENT OFFLOADING OF NETWORK POLICIES TO NETWORK INTERFACE CARDS 有权
标题翻译：将网络政策安全有效地卸载到网络接口卡
公开(公告)号：US20130061047A1
公开(公告)日：2013-03-07
申请号：US13565369
申请日：2012-08-02
申请人： Murari Sridharan , Narasimhan Venkataramaiah , Yu-Shun Wang , Albert G. Greenberg , Alireza Dabagh , Pankaj Garg , Daniel M. Firestone
发明人： Murari Sridharan , Narasimhan Venkataramaiah , Yu-Shun Wang , Albert G. Greenberg , Alireza Dabagh , Pankaj Garg , Daniel M. Firestone
IPC分类号： G06F15/16 , G06F9/455 , H04L29/06 , G06F21/00
CPC分类号： H04L45/586
摘要： Techniques for efficient and secure implementation of network policies in a network interface controller (NIC) in a host computing device operating a virtualized computing environment. In some embodiments, the NIC may process and forward packets directly to their destinations, bypassing a parent partition of the host computing device. In particular, in some embodiments, the NIC may store network policy information to process and forward packets directly to a virtual machine (VM). If the NIC is unable to process a packet, then the NIC may forward the packet to the parent partition. In some embodiments, the NIC may use an encapsulation protocol to transmit address information in packet headers. In some embodiments, this address information may be communicated by the MC to the parent partition via a secure channel. The NIC may also obtain, and decrypt, encrypted addresses from the VMs for routing packets, bypassing the parent partition.
摘要翻译：用于在操作虚拟化计算环境的主机计算设备中的网络接口控制器（NIC）中有效和安全地实现网络策略的技术。在一些实施例中，NIC可以绕过主计算设备的父分区来处理和转发数据包直接到其目的地。特别地，在一些实施例中，NIC可以存储网络策略信息以直接处理和转发分组到虚拟机（VM）。如果NIC无法处理数据包，则NIC可能会将数据包转发到父分区。在一些实施例中，NIC可以使用封装协议来传送分组报头中的地址信息。在一些实施例中，该地址信息可以由MC通过安全信道传送到父分区。 NIC也可以绕过父分区，从虚拟机获取和解密路由数据包的加密地址。

7. 发明申请

US20120155468A1 MULTI-PATH COMMUNICATIONS IN A DATA CENTER ENVIRONMENT 审中-公开
标题翻译：数据中心环境中的多路通信
公开(公告)号：US20120155468A1
公开(公告)日：2012-06-21
申请号：US12973914
申请日：2010-12-21
申请人： Albert Gordon Greenberg , Changhoon Kim , David A. Maltz , Jitendra Dattatraya Padhye , Murari Sridharan , Bo Tan
发明人： Albert Gordon Greenberg , Changhoon Kim , David A. Maltz , Jitendra Dattatraya Padhye , Murari Sridharan , Bo Tan
IPC分类号： H04L12/56
CPC分类号： H04L45/24 , H04L47/193 , H04L69/14 , H04L69/163 , H04L69/22
摘要： Various technologies related to multi-path communications in a data center environment are described herein. Network infrastructure devices communicate traffic flows amongst one another, wherein a traffic flow includes a plurality of data packets intended for a particular recipient computing device that are desirably transmitted and received in a certain sequence. Indications that data packets in the traffic flow have been received outside of the certain sequence are processed in a manner to prevent a network infrastructure device from retransmitting a particular data packet.
摘要翻译：本文描述了与数据中心环境中的多路径通信相关的各种技术。网络基础设施设备将业务流彼此通信，其中业务流包括期望以特定顺序发送和接收的特定接收方计算设备的多个数据分组。处理业务流中的数据分组已经被接收到特定序列之外的指示以防止网络基础设施设备重传特定数据分组的方式进行处理。

8. 发明申请

US20100299349A1 Reducing Latency in Returning Online Search Results 审中-公开
标题翻译：减少在线搜索结果的延迟
公开(公告)号：US20100299349A1
公开(公告)日：2010-11-25
申请号：US12469160
申请日：2009-05-20
申请人： Albert Gordon Greenberg , Lihua Yuan , Randall Friend Kern , Jitendra Dattatraya Padhye , David A. Maltz , Parveen Kumar Patel , Murari Sridharan
发明人： Albert Gordon Greenberg , Lihua Yuan , Randall Friend Kern , Jitendra Dattatraya Padhye , David A. Maltz , Parveen Kumar Patel , Murari Sridharan
IPC分类号： G06F17/30 , H04L12/56
CPC分类号： G06F16/9574
摘要： An embodiment of the invention is directed to reducing search-response latency. The closest intermediate server can be located between a client computing device and a search engine. A search query is sent to the intermediate server in a first packet of a transport protocol handshake. A plurality of packets are received from the intermediate server. The plurality of packets are used to open a window associated with a transport protocol. A response related to the search query is received by the client.
摘要翻译：本发明的实施例旨在减少搜索响应等待时间。最接近的中间服务器可以位于客户端计算设备和搜索引擎之间。搜索查询在传输协议握手的第一分组中被发送到中间服务器。从中间服务器接收多个分组。多个分组被用于打开与传输协议相关联的窗口。客户端收到与搜索查询相关的响应。

9. 发明授权

US08214509B2 Receive coalescing and direct data placement 有权
标题翻译：接收合并和直接数据放置
公开(公告)号：US08214509B2
公开(公告)日：2012-07-03
申请号：US11823295
申请日：2007-06-27
申请人： Alireza Dabagh , Murari Sridharan
发明人： Alireza Dabagh , Murari Sridharan
IPC分类号： G06F15/173 , G06F15/16
CPC分类号： H04L69/22 , H04L69/12
摘要： A networked computer with a network interface device to which the network stack can offload a subset of the functions needed to process received data packets. The network interface device can receive a map between connections and application buffers. Upon receipt of a data packet through a connection, the network interface device may use the map to identify an application buffer and transfer the data packet to that application buffer. The network interface device may be programmed to recognize qualifications on data packets appropriate for transfer to an application buffer, such as by receiving the sequence number of the next expected packet. Because the network interface device can recognize packets for transfer to an application buffer by simple comparison of a packet header to the map, additional hardware required in the network interface device to perform the offloaded functions is lightweight.
摘要翻译：具有网络接口设备的网络计算机，网络堆栈可以卸载处理接收的数据分组所需的功能的子集。网络接口设备可以在连接和应用缓冲区之间接收映射。在通过连接接收到数据分组时，网络接口设备可以使用映射来识别应用缓冲器并将数据分组传送到该应用缓冲器。网络接口设备可以被编程为识别适合于传送到应用缓冲器的数据分组的资格，例如通过接收下一个预期分组的序列号。因为网络接口设备可以通过简单地将分组报头与地图进行比较来识别用于传送到应用缓冲区的分组，所以网络接口设备中执行卸载功能所需的附加硬件是轻量级的。

10. 发明授权

US07970928B2 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：US07970928B2
公开(公告)日：2011-06-28
申请号：US11958374
申请日：2007-12-17
申请人： Murari Sridharan , Deepak Bansal , Eran Yariv , Ronen Barenboim , Maxim Stepin , Alexander Malysh
发明人： Murari Sridharan , Deepak Bansal , Eran Yariv , Ronen Barenboim , Maxim Stepin , Alexander Malysh
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：使用搭载SYN / ACK分组中的现有标准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体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/互联网协议）时的中间设备。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。

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