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1. 发明授权

US09432212B2 Data switching system 有权
标题翻译：数据交换系统
公开(公告)号：US09432212B2
公开(公告)日：2016-08-30
申请号：US13572521
申请日：2012-08-10
申请人： Haresh K. Shah , Krishnamurthy Subramanian , Glenn Poole
发明人： Haresh K. Shah , Krishnamurthy Subramanian , Glenn Poole
IPC分类号： H04L12/66 , H04L12/28 , H04L12/413
CPC分类号： H04L12/413
摘要： A data switching system is disclosed that allows for switching of packets through a plurality of top of rack switches utilizing a logical switching fabric that includes a local TOR switching fabric on a TOR switch and a Core switching fabric on a Core switch. A method of processing packets according to some embodiment can include receiving a packet from a source port into a top of rack switch, the source port being one of a plurality of ports on the top of rack switch, processing a packet header of the packet to determine a destination port; and switching the packet through a logical switching fabric that includes a local switch fabric on the top of rack switch and a Core switching fabric on a Core switch.
摘要翻译：公开了一种数据交换系统，其允许通过使用包括TOR交换机上的本地TOR交换结构和核心交换机上的核心交换结构的逻辑交换结构来切换多个机架交换机顶层交换机。根据一些实施例的处理分组的方法可以包括从源端口接收分组到机架交换机的顶部，源端口是机架交换机顶部的多个端口之一，处理分组的分组报头确定目的端口; 并通过逻辑交换结构切换数据包，该逻辑交换结构包括机架交换机顶部的本地交换结构和Core交换机上的核心交换结构。

2. 发明授权

US09413649B2 Virtual network device architecture 有权
标题翻译：虚拟网络设备架构
公开(公告)号：US09413649B2
公开(公告)日：2016-08-09
申请号：US12722568
申请日：2010-03-12
申请人： Krishnamurthy Subramanian , Rahul Kulkarni
发明人： Krishnamurthy Subramanian , Rahul Kulkarni
IPC分类号： G06F7/00 , H04L12/713
CPC分类号： H04L45/745 , H04L45/586 , H04L49/10 , H04L49/253 , H04L69/324 , H04L69/325
摘要： A network device such as a router or a switch is comprised of a control module and a plurality of physical line cards. The control module includes a control processor virtual machine, a plurality of route processing virtual machines and one or more instances of a line card virtual machine. The line card virtual machine operates to receive routing information base update information, to modify the routing information base according to the update information and to update each instance of a plurality of forwarding information bases included on each of the physical line cards.
摘要翻译：诸如路由器或交换机的网络设备由控制模块和多个物理线路卡组成。控制模块包括控制处理器虚拟机，多个路由处理虚拟机和线卡虚拟机的一个或多个实例。线卡虚拟机操作以接收路由信息库更新信息，根据更新信息修改路由信息库，并更新每个物理线路卡上包含的多个转发信息库的每个实例。

3. 发明授权

US09208523B2 Low latency financial data network architecture 有权
标题翻译：低延迟财务数据网络架构
公开(公告)号：US09208523B2
公开(公告)日：2015-12-08
申请号：US13443807
申请日：2012-04-10
申请人： Krishnamurthy Subramanian , Haresh Shah , Manash Kirtania
发明人： Krishnamurthy Subramanian , Haresh Shah , Manash Kirtania
IPC分类号： H04L12/54 , H04L12/66 , G06Q40/04 , G06F13/14 , G06F9/06
CPC分类号： G06Q40/04 , G06F9/06 , G06F13/14 , H04L12/56 , H04L12/66
摘要： A financial market data network having a lowered overall latency includes communication interfaces, specialized switches having internal switching fabric, and feed handlers that all facilitate communications between financial exchanges and consumers of financial market data therefrom. A feed handler is situated within or proximate a specialized switch and is arranged to receive raw financial market data directly from financial exchanges without the data first traveling through any switching fabric. The feed handler is adapted to process the received raw financial market data into a normalized format before the normalized financial market data is ever routed through any switching fabric, prior to being sent to consumers. The communication interfaces can include I/O ports located on the specialized switches, and the feed handlers can include one or more computer processors or servers. Additional internal switch components can include packet processors and storage components that store network protocols and/or layer tables.
摘要翻译：具有降低的总延迟的金融市场数据网络包括通信接口，具有内部交换结构的专用交换机以及所有促进金融交易所和消费者之间的金融市场数据的通信的馈送处理器。饲料处理器位于专门的开关内或附近，并被布置成直接从金融交易所接收原始金融市场数据，而数据首先通过任何交换结构行进。馈送处理器适用于在被发送给消费者之前，在将标准化的金融市场数据通过任何交换结构路由之前，将接收到的原始金融市场数据处理为规范化格式。通信接口可以包括位于专用交换机上的I / O端口，馈送处理器可以包括一个或多个计算机处理器或服务器。附加的内部交换机组件可以包括存储网络协议和/或层表的分组处理器和存储组件。

4. 发明授权

US08819267B2 Network virtualization without gateway function 有权
标题翻译：无网关功能的网络虚拟化
公开(公告)号：US08819267B2
公开(公告)日：2014-08-26
申请号：US13297653
申请日：2011-11-16
申请人： Mohnish Anumala , Krishnamurthy Subramanian
发明人： Mohnish Anumala , Krishnamurthy Subramanian
IPC分类号： G06F15/16
CPC分类号： H04L12/4641 , G06F9/45558 , G06F2009/45595 , H04L12/4625 , H04L12/4633 , H04L61/103
摘要： A local network, such as a data center, includes a plurality of servers each of which are linked to a network switch. Some of the plurality of servers are network virtualization capable and some are not. The network virtualization capable servers include functionality that encapsulates a data frame, generated by one network virtualization servers that is to be sent to another network virtualization capable server, with a network virtualization identity. In the event that a network virtualization server generates a data frame for transmission to a server that is not capable of network virtualization, the network virtualization capable server does not encapsulate the data frame with the network virtualization identity.
摘要翻译：诸如数据中心的本地网络包括多个服务器，每个服务器链接到网络交换机。多个服务器中的一些服务器具有网络虚拟化能力，有些不是。具有网络虚拟化能力的服务器包括将要发送到具有网络虚拟化身份的另一个具有网络虚拟化能力的服务器的一个网络虚拟化服务器生成的数据帧的功能。如果网络虚拟化服务器生成用于传输到不能进行网络虚拟化的服务器的数据帧，则具有网络虚拟化能力的服务器不会将数据帧与网络虚拟化标识进行封装。

5. 发明授权

US08649379B2 Method and apparatus for configuring a link aggregation group on a stacked switch 有权
标题翻译：在堆叠交换机上配置链路聚合组的方法和装置
公开(公告)号：US08649379B2
公开(公告)日：2014-02-11
申请号：US13048281
申请日：2011-03-15
申请人： Krishnamurthy Subramanian , Janardhanan P. Narasimhan
发明人： Krishnamurthy Subramanian , Janardhanan P. Narasimhan
IPC分类号： H04L12/28
CPC分类号： H04L49/30 , H04L45/245 , H04L49/70 , Y02D50/30
摘要： Two network switches are configured in a stacked relationship to each other and include link aggregation sub-layer functionality. Switching tables are programmed on each switch with information used to forward packets ingressing to them over a redundant LAG that is identified in the switching table by a port that is a member of the redundant LAG.
摘要翻译：两个网络交换机以彼此堆叠的关系配置，并且包括链路聚合子层功能。切换表在每个交换机上进行编程，其信息用于通过冗余LAG转发数据包，通过冗余LAG的端口在交换表中标识的冗余LAG。

6. 发明授权

US08630297B2 Method and apparatus for the distribution of network traffic 有权
标题翻译：网络流量分配的方法和装置
公开(公告)号：US08630297B2
公开(公告)日：2014-01-14
申请号：US13023294
申请日：2011-02-08
申请人： Krishnamurthy Subramanian , Kalpesh Zinjuwadia
发明人： Krishnamurthy Subramanian , Kalpesh Zinjuwadia
IPC分类号： H04L12/28 , H04L12/56
CPC分类号： H04L45/125 , H04L45/245 , H04L47/125
摘要： A packet network system, such as an autonomous system, includes a plurality of packet network devices some of which are edge routers and some of which are core routers. Each of the edge and core routers include functionality that operates to receive network traffic, process the traffic as needed and to forward the traffic to its destination. Additionally, each router includes a traffic distribution function that operates to calculate path bandwidths for all of the paths over which the traffic can be forwarding through the system and to use the volume of traffic ingressing to the system, link utilization information and the calculated path bandwidth to redistribute the traffic in the system such that traffic loss in the system in minimized.
摘要翻译：诸如自治系统的分组网络系统包括多个分组网络设备，其中一些分组网络设备是边缘路由器，并且其中一些是核心路由器。边缘和核心路由器中的每一个包括操作以接收网络流量的功能，根据需要处理流量并将流量转发到其目的地。另外，每个路由器包括流量分配功能，用于计算流量可以通过系统转发的所有路径的路径带宽，并使用到系统入口的流量，链路利用率信息和计算的路径带宽重新分配系统中的流量，使系统中的流量损失最小化。

7. 发明申请

US20130336134A1 SYSTEM AND METHODS FOR OPEN FABRIC MANAGEMENT 有权
标题翻译：开放织物管理系统与方法
公开(公告)号：US20130336134A1
公开(公告)日：2013-12-19
申请号：US13524917
申请日：2012-06-15
申请人： Wanqun Bao , Krishnamurthy Subramanian
发明人： Wanqun Bao , Krishnamurthy Subramanian
IPC分类号： H04L12/28 , H04L12/26
CPC分类号： H04L41/046 , H04L41/0806 , H04L41/0893 , H04L49/70
摘要： A system for operating a plurality of information handling systems forming a network including a plurality of switches is provided. The switches include physical and virtual switches each having ports coupling information handling systems to one another. The system including a management unit configured to provide commands to the switches and to collect a status information for each of the switches; and an agent unit coupled to each of the switches, the agent configured to receive the commands from the management unit, provide the commands to the switch associated thereto, monitor status of the switch associated thereto, and provide the status information to the management unit. A method for operating a network and a computer program to perform the method for using a system as above is also provided. A network managing device configured to couple to a service provider in a network as above is also provided.
摘要翻译：提供了一种用于操作形成包括多个开关的网络的多个信息处理系统的系统。交换机包括各自具有将信息处理系统彼此耦合的端口的物理和虚拟交换机。该系统包括：管理单元，被配置为向交换机提供命令并收集每个交换机的状态信息; 以及耦合到每个交换机的代理单元，所述代理被配置为从所述管理单元接收所述命令，向与其相关联的交换机提供命令，监视与其相关联的交换机的状态，并将所述状态信息提供给所述管理单元。还提供了一种用于操作网络的方法和用于执行如上使用系统的方法的计算机程序。还提供了如上所述配置为耦合到网络中的服务提供商的网络管理设备。

8. 发明授权

US08462666B2 Method and apparatus for provisioning a network switch port 有权
标题翻译：用于提供网络交换机端口的方法和设备
公开(公告)号：US08462666B2
公开(公告)日：2013-06-11
申请号：US13021722
申请日：2011-02-05
申请人： Krishnamurthy Subramanian , Wanqun Bao , Shivakumar Sundaram , Ravikumar Sivasankar , Avinash Natarajan , Pathangi Narasimhan Janardhanan
发明人： Krishnamurthy Subramanian , Wanqun Bao , Shivakumar Sundaram , Ravikumar Sivasankar , Avinash Natarajan , Pathangi Narasimhan Janardhanan
IPC分类号： H04L12/28 , H04L12/56
CPC分类号： H04L41/0806 , H04L12/4641
摘要： A network switch is comprised of a control processor and one or more line cards. The control processor includes functionality to register interest with a hypervisor, operating in conjunction with a network host connected to the switch, in data object attributes maintained on the network host by the hypervisor. The hypervisor associated with the network host sends changes in the host attributes to the switch which the switch maintains in a listing of attributes. The switch traps and copies particular packets to the switch control processor where a provisioning function operates on the attribute information in the list with source information included in the packet header in order to configure a forwarding table on the line card.
摘要翻译：网络交换机由控制处理器和一个或多个线路卡组成。控制处理器包括用于管理虚拟机管理程序的功能，该虚拟机管理程序与连接到交换机的网络主机一起操作，由管理程序在网络主机上维护的数据对象属性中。与网络主机关联的管理程序将主机属性的更改发送到交换机，交换机在属性列表中维护。交换机将特定分组陷阱并复制到交换机控制处理器，其中供应功能对列表中的属性信息进行操作，其中包括在分组报头中的源信息，以便在线路卡上配置转发表。

9. 发明授权

US08442045B2 Multicast packet forwarding using multiple stacked chassis 有权
标题翻译：使用多层堆叠机架的组播数据包转发
公开(公告)号：US08442045B2
公开(公告)日：2013-05-14
申请号：US12856342
申请日：2010-08-13
申请人： Krishnamurthy Subramanian , Raja Jayakumar , Janardhanan P. Narasimhan
发明人： Krishnamurthy Subramanian , Raja Jayakumar , Janardhanan P. Narasimhan
IPC分类号： H04L12/56
CPC分类号： H04L12/18 , H04L12/4641
摘要： A stacked chassis comprising multiple physical switch/router chassis operates without any special stacking hardware or stacking channels. Instead, a stacking LAG is installed between front-end switch ports on the stacked chassis. The chassis controllers negotiate a master, which controls operation of all chassis in the stack. A stacked-chassis-wide port numbering scheme is used to distribute information to all line cards in the system. Each line card processes the information to distill physical-chassis significant information for operation of that chassis in the stack.
摘要翻译：包括多个物理交换机/路由器机箱的堆叠机架在没有任何特殊堆叠硬件或堆叠信道的情况下运行。相反，堆叠LAG安装在堆叠机箱的前端交换机端口之间。机箱控制器协商主机，控制堆叠中所有机箱的操作。堆叠式机箱范围的端口编号方案用于将信息分发给系统中的所有线路卡。每个线卡处理信息以提取物理机箱重要信息，以便堆叠中的该机箱的操作。

10. 发明申请

US20130039218A1 LIMITING MAC ADDRESS LEARNING ON ACCESS NETWORK SWITCHES 有权
标题翻译：限制访问网络交换机的MAC地址学习
公开(公告)号：US20130039218A1
公开(公告)日：2013-02-14
申请号：US13280416
申请日：2011-10-25
申请人： JANARHANAN P. NARASIMHAN , Krishnamurthy Subramanian , Thayumanavan Sridhar
发明人： JANARHANAN P. NARASIMHAN , Krishnamurthy Subramanian , Thayumanavan Sridhar
IPC分类号： H04L12/28
CPC分类号： H04L49/356 , H04L45/54 , H04L45/74 , H04L49/3009 , H04L61/103
摘要： A LAN includes a CORE switch linked to some number of TOR switches, and each of the TOR switches are linked directly to some number of host devices. Each of the switches in the LAN operate to process and transmit data frames they receive from neighboring LAN devices. Each TOR switch in the LAN builds and maintains a layer-2 forwarding table that is comprised of MAC address information learned from frames they receive from neighboring LAN devices. Selected ports/VLANs on some or all of the TOR devices are designated to be CORE/switch facing ports (CFP) or host facing ports (HFP). Each of the CFPs are configured to only learn the MAC address in unicast frames it receives and each of the HFPs can be configured to learn the MAC address of both unicast and multicast data frames provided the destination MAC address included in the unicast frame is known.
摘要翻译： LAN包括链接到一些TOR开关的CORE开关，并且每个TOR开关直接连接到一些主机设备。 LAN中的每个交换机操作以处理和发送从相邻LAN设备接收的数据帧。 LAN中的每个TOR开关构建并维护一个二层转发表，其包括从从相邻LAN设备接收的帧中学习的MAC地址信息。某些或所有TOR设备上的所选端口/ VLAN被指定为CORE /交换机端口（CFP）或主机端口（HFP）。每个CFP被配置为仅在所接收的单播帧中学习MAC地址，并且如果已知单播帧中包括的目的地MAC地址，则可以将每个HFP配置为学习单播和多播数据帧的MAC地址。

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