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41. 发明授权

US08798052B2 Relaying frames in a large layer 2 network fabric 有权
标题翻译：中继帧在大二层网络结构中
公开(公告)号：US08798052B2
公开(公告)日：2014-08-05
申请号：US13585859
申请日：2012-08-15
申请人： Stephan Benny , Keshav Govind Kamble , Dar-Ren Leu , Vijoy A. Pandey
发明人： Stephan Benny , Keshav Govind Kamble , Dar-Ren Leu , Vijoy A. Pandey
IPC分类号： H04L12/26
CPC分类号： H04L45/20 , H04L45/00
摘要： A network fabric includes interconnected network nodes, each having access to a database containing predetermined paths from each network node to each other network node in the network fabric. Each network node determines, in response to an incoming frame, whether the frame is a fabric protocol data unit (PDU) having a header containing path attributes including a destination node address. If the frame is a fabric PDU, the node selects a first path to the destination node from the database, and forwards the fabric PDU to a next hop in accordance with the selected path. If the frame is not a fabric PDU, the node selects a second path through the network fabric to the destination node from the database, adds the header with the path attributes to the frame to produce the fabric PDU, and forwards the fabric PDU to the next hop in accordance with the second path.
摘要翻译：网络结构包括互连的网络节点，每个网络节点都可以访问包含从网络结构中的每个网络节点到每个其他网络节点的预定路径的数据库。每个网络节点响应于传入帧确定该帧是否是具有包含目的地节点地址的路径属性的报头的结构协议数据单元（PDU）。如果帧是结构PDU，则节点从数据库中选择到目的地节点的第一路径，并且根据所选择的路径将结构PDU转发到下一跳。如果帧不是结构PDU，则节点从数据库中选择通过网络结构到目的节点的第二条路径，将具有路径属性的头部添加到该帧以产生结构PDU，并将结构PDU转发到下一跳按照第二条路径。

42. 发明申请

US20130201873A1 DISTRIBUTED FABRIC MANAGEMENT PROTOCOL 有权
公开(公告)号：US20130201873A1
公开(公告)日：2013-08-08
申请号：US13364896
申请日：2012-02-02
申请人： Sushma Anantharam , Nirapada Ghosh , Keshav Govind Kamble , Dar-Ren Leu , Chandarani J. Mendon , Vijoy A. Pandey , Nandakumar Peethambaram
发明人： Sushma Anantharam , Nirapada Ghosh , Keshav Govind Kamble , Dar-Ren Leu , Chandarani J. Mendon , Vijoy A. Pandey , Nandakumar Peethambaram
IPC分类号： H04L12/28
CPC分类号： H04L41/0246 , H04L41/044
摘要： A distributed fabric system comprises a plurality of independent network elements interconnected by inter-switch links and assigned to a same group. Each network element includes a switching chip, a processor, and memory storing program code that is executed by the processor. The program code of each network element includes a device configuration (DC) stacking module and a switch discovery protocol (SDP) module. The SDP module of each network element, when executed, discovers each other network element in the group and elects one of the network elements as a master network element. The SDP module of the master network element, when executed, sends messages to the DC-stacking module of the master network element. Each sent message identifies one of the network elements in the group. The DC stacking module of the master network element, when executed, maintains a record of all network elements that are currently members in the group.

43. 发明申请

US20120294314A1 DUAL-ROLE MODULAR SCALED-OUT FABRIC COUPLER CHASSIS 有权
标题翻译：双功能模块化伸缩织物联轴器
公开(公告)号：US20120294314A1
公开(公告)日：2012-11-22
申请号：US13473316
申请日：2012-05-16
申请人： Alexander Philip Campbell , Keshav Govind Kamble , Dar-Ren Leu , Vijoy A. Pandey , Atul Tambe
发明人： Alexander Philip Campbell , Keshav Govind Kamble , Dar-Ren Leu , Vijoy A. Pandey , Atul Tambe
IPC分类号： H04L12/56
CPC分类号： H04L49/356 , H04L49/40 , H04L49/45
摘要： A scaled-out fabric coupler (SFC) chassis includes a plurality of root fabric cards installed on the one side of the SFC chassis. Each root fabric card has a plurality of electrical connectors. A plurality of line cards is installed on the opposite side of the SFC chassis. Each line card is one of two types of line cards. One of the two types of line cards is a switch-based network line card having network ports for connecting to servers and switches. The other of the two types of line cards is a leaf fabric card having fabric ports for connecting to a fabric port of a network element. Each of the two types of the line cards has electrical connectors that mate with one electrical connector of each root fabric card installed in the chassis.
摘要翻译：扩展的Fabric耦合器（SFC）机箱包括安装在SFC机箱一侧的多个根结构卡。每个根织物卡具有多个电连接器。多个线路卡安装在SFC机箱的相对侧。每个线卡是两种线卡之一。两种类型的线卡之一是具有用于连接到服务器和交换机的网络端口的基于交换机的网络线卡。两种类型的线卡中的另一种是具有用于连接到网元的网络端口的网络端口的叶结构卡。两种类型的线卡中的每一种具有与安装在底盘中的每个根织物卡的一个电连接器相配合的电连接器。

44. 发明授权

US5903759A Software performance analysis using hardware analyzer 失效
标题翻译：使用硬件分析仪进行软件性能分析
公开(公告)号：US5903759A
公开(公告)日：1999-05-11
申请号：US868573
申请日：1997-06-04
申请人： Tsyr-Shya Joe Sun , Dar-Ren Leu
发明人： Tsyr-Shya Joe Sun , Dar-Ren Leu
IPC分类号： G06F9/45 , G06F11/34 , G06F11/00
CPC分类号： G06F11/3466 , G06F8/4436
摘要： The present invention provides a method and an apparatus for analyzing the performance of a computer program inn a way that is accurate in light of prefetching caching operations. The method operates by inserting output sequences into a computer program. An output sequence is a sequence of instructions which cause the program to send an output through the data bus to an output terminal. A hardware analyzer records the output from the output terminal, and this output is used to calculate performance of the computer program. The present invention provides facilities to insert output sequences into executable code, thereby allowing performance analysis to take place without time consuming recompilation. The present invention requires only a small number connections from a hardware analyzer to output terminals connected to the processor data bus. This greatly simplifies the process of gathering data with a hardware analyzer. The present invention also provides for sending information to the output terminals in a format that indicates the progress of the program through subroutine and function calls.
摘要翻译：本发明提供一种以预取高速缓存操作为准的方式来分析计算机程序的性能的方法和装置。该方法通过将输出序列插入到计算机程序中来操作。输出序列是使程序通过数据总线向输出端发送输出的指令序列。硬件分析仪记录输出端子的输出，该输出用于计算计算机程序的性能。本发明提供了将输出序列插入到可执行代码中的设施，从而允许进行性能分析而不需要耗费时间的重新编译。本发明仅需要从硬件分析器到连接到处理器数据总线的输出端子的少量连接。这大大简化了使用硬件分析器收集数据的过程。本发明还提供了通过子程序和功能调用以指示程序进展的格式向输出终端发送信息。

45. 发明授权

US09497073B2 Distributed link aggregation group (LAG) for a layer 2 fabric 有权
标题翻译：第2层结构的分布式链路聚合组（LAG）
公开(公告)号：US09497073B2
公开(公告)日：2016-11-15
申请号：US13314455
申请日：2011-12-08
申请人： Dayavanti G. Kamath , Keshav Kamble , Dar-Ren Leu , Nilanjan Mukherjee , Vijoy A. Pandey
发明人： Dayavanti G. Kamath , Keshav Kamble , Dar-Ren Leu , Nilanjan Mukherjee , Vijoy A. Pandey
IPC分类号： H04L12/24 , H04L12/721 , H04L12/709 , H04L12/703
CPC分类号： H04L41/0654 , H04L45/245 , H04L45/28 , H04L45/66 , Y02D50/30
摘要： Each of first and second bridges of a data network having respective links to an external node implement a network bridge component that forwards traffic inside the data network and a virtual bridge component that forwards traffic outside of the data network. A virtual bridge is formed including the virtual bridge components of the first and second bridges and an interswitch link (ISL) between the virtual bridge components of the first and second bridges. Data frames are communicated with each of multiple external network nodes outside the data network via a respective one of multiple link aggregation groups all commonly supported by the virtual bridge.
摘要翻译：具有到外部节点的各个链接的数据网络的每个第一和第二桥接器实现转发数据网络内的业务的网桥组件，以及在数据网络之外转发业务的虚拟桥组件。形成虚拟桥，包括第一和第二桥的虚拟桥组件和第一和第二桥的虚拟桥组件之间的交叉连接（ISL）。数据帧通过虚拟桥通常支持的多个链路聚合组中的相应一个，与数据网络外部的多个外部网络节点中的每一个进行通信。

46. 发明授权

US09378073B2 Remote procedure call for a distributed system 有权
标题翻译：远程过程调用分布式系统
公开(公告)号：US09378073B2
公开(公告)日：2016-06-28
申请号：US13585587
申请日：2012-08-14
申请人： Sushma Anantharam , Nirapada Ghosh , Dayavanti Gopal Kamath , Keshav Govind Kamble , Dar-Ren Leu , Chandarani J. Mendon , Vijoy A. Pandey , Nandakumar Peethambaram
发明人： Sushma Anantharam , Nirapada Ghosh , Dayavanti Gopal Kamath , Keshav Govind Kamble , Dar-Ren Leu , Chandarani J. Mendon , Vijoy A. Pandey , Nandakumar Peethambaram
IPC分类号： G06F9/54 , H04L29/08 , H04L29/06 , H04L12/24
CPC分类号： G06F9/547 , H04L29/08099 , H04L41/0213 , H04L67/40
摘要： A distributed system includes first-tier entities, and a master entity in communication with each first-tier entity. The master entity provides a single access point through which an administrator can submit commands to manage all entities. The master entity maintains a table of virtual slots. Each virtual slot points to one of the first-tier entities, and each first-tier entity is pointed to by at least one virtual slot. The processor runs an RPC (remote procedure call) client to submit RPC requests to the first-tier entities, and determines a destination first-tier entity for a given RPC request in response to which virtual slot the administrator submits a command. The distributed system can include second-tier entities, each indirectly communicating with the master entity through a first-tier entity. The table has a virtual slot for each second-tier entity, which points to the first-tier entity acting as proxy for the second-tier entity.
摘要翻译：分布式系统包括第一层实体和与每个第一层实体通信的主实体。主实体提供单个接入点，通过该接入点管理员可以提交命令来管理所有实体。主实体维护一个虚拟插槽表。每个虚拟时隙指向第一层实体中的一个，并且至少一个虚拟时隙指向每个第一层实体。处理器运行RPC（远程过程调用）客户端，以向第一层实体提交RPC请求，并根据管理员提交命令的哪个虚拟时隙来确定给定RPC请求的目标第一层实体。分布式系统可以包括第二层实体，每个实体通过第一层实体间接地与主实体进行通信。该表具有用于每个第二层实体的虚拟插槽，其指向作为第二层实体的代理的第一层实体。

47. 发明授权

US09038053B2 Non-disruptive software updates for servers processing network traffic 有权
标题翻译：用于处理网络流量的服务器的无中断软件更新
公开(公告)号：US09038053B2
公开(公告)日：2015-05-19
申请号：US13594966
申请日：2012-08-27
申请人： Bhalachandra G. Banavalikar , Chidambaram Bhagavathiperumal , Keshav Govind Kamble , Dar-Ren Leu , James Maples
发明人： Bhalachandra G. Banavalikar , Chidambaram Bhagavathiperumal , Keshav Govind Kamble , Dar-Ren Leu , James Maples
IPC分类号： G06F9/44 , G06F9/445 , G06F11/36
CPC分类号： G06F8/656 , G06F9/4401 , G06F9/4406 , G06F11/3668
摘要： Updating software on first and second network controller entities (NCEs), without disrupting traffic processing, comprises resetting the second NCE after it receives a proposed software version from the first NCE. The second NCE runs the proposed software version in a standby role. While the second NCE runs the proposed software version in the standby role, databases of the NCEs stay synchronized. Resetting the first NCE induces the second NCE to assume the master role, and the first NCE to assume the standby role. The second NCE in the master role tests the proposed software version for a predetermined period. If validation succeeds, the second NCE instructs the first NCE to reboot and run the proposed software version in the standby role. Otherwise, the second NCE reverts to running the current software version in the standby role; and the first NCE, running the current software version, reverts to the master role.
摘要翻译：在不中断流量处理的情况下，在第一和第二网络控制器实体（NCE）上更新软件包括在从第一NCE接收到所提出的软件版本之后重置第二个NCE。第二个NCE在备用角色中运行提议的软件版本。而第二个NCE在备用角色中运行提出的软件版本，NCE的数据库保持同步。重置第一个NCE会引发第二个NCE承担主角色，第一个NCE承担备用角色。主要角色的第二个NCE在预定时间内测试所提出的软件版本。如果验证成功，则第二个NCE指示第一个NCE重新启动并运行备用角色中提出的软件版本。否则，第二个NCE将恢复在备用角色中运行当前软件版本; 并且运行当前软件版本的第一个NCE恢复到主控角色。

48. 发明授权

US08908682B2 Switch discovery protocol for a distributed fabric system 有权
标题翻译：分布式架构系统的交换机发现协议
公开(公告)号：US08908682B2
公开(公告)日：2014-12-09
申请号：US13364947
申请日：2012-02-02
申请人： Nirapada Ghosh , Keshav Govind Kamble , Dar-Ren Leu , Vijoy A. Pandey
发明人： Nirapada Ghosh , Keshav Govind Kamble , Dar-Ren Leu , Vijoy A. Pandey
IPC分类号： H04L12/50
CPC分类号： H04L43/0811 , H04L41/0663 , H04L43/103 , H04L43/16 , H04L49/356
摘要： A distributed fabric system comprises a plurality of independent network elements interconnected by inter-switch links and assigned to a same group. Each network element includes one or more switching chips, a processor, and memory storing program code that is executed by the processor. The program code of each network element includes a switch discovery protocol (SDP) module. The SDP module of each network element, when executed, periodically multicasts SDP data units (SDPDUs) using one of a plurality of transmission rates. The plurality of transmission rates includes a fast transmission rate and a slow transmission rate. The transmission rate used by the SDP module of each network element is the fast transmission rate until the SDP module of that network element determines a criterion is met, in response to which the transmission rate used by the SDP module of that network element changes to the slow transmission rate.
摘要翻译：分布式结构系统包括通过交换机间链路互连并分配给相同组的多个独立网络元件。每个网络元件包括由处理器执行的一个或多个切换芯片，处理器和存储程序代码的存储器。每个网元的程序代码包括交换机发现协议（SDP）模块。每个网元的SDP模块在执行时，使用多个传输速率之一周期性地组播SDP数据单元（SDPDU）。多个传输速率包括快速传输速率和慢速传输速率。每个网元的SDP模块使用的传输速率是直到该网元的SDP模块确定满足标准的快速传输速率，响应于该网元的SDP模块使用的传输速率改变为传输速度慢

49. 发明申请

US20140059529A1 NON-DISRUPTIVE SOFTWARE UPDATES FOR SERVERS PROCESSING NETWORK TRAFFIC 有权
公开(公告)号：US20140059529A1
公开(公告)日：2014-02-27
申请号：US13594966
申请日：2012-08-27
申请人： Bhalachandra G. Banavalikar , Chidambaram Bhagavathiperumal , Keshav Govind Kamble , Dar-Ren Leu , James Maples
发明人： Bhalachandra G. Banavalikar , Chidambaram Bhagavathiperumal , Keshav Govind Kamble , Dar-Ren Leu , James Maples
IPC分类号： G06F9/44
CPC分类号： G06F8/656 , G06F9/4401 , G06F9/4406 , G06F11/3668
摘要： Updating software on first and second network controller entities (NCEs), without disrupting traffic processing, comprises resetting the second NCE after it receives a proposed software version from the first NCE. The second NCE runs the proposed software version in a standby role. While the second NCE runs the proposed software version in the standby role, databases of the NCEs stay synchronized. Resetting the first NCE induces the second NCE to assume the master role, and the first NCE to assume the standby role. The second NCE in the master role tests the proposed software version for a predetermined period. If validation succeeds, the second NCE instructs the first NCE to reboot and run the proposed software version in the standby role. Otherwise, the second NCE reverts to running the current software version in the standby role; and the first NCE, running the current software version, reverts to the master role.

50. 发明申请

US20140052771A1 REMOTE PROCEDURE CALL FOR A DISTRIBUTED SYSTEM 有权
公开(公告)号：US20140052771A1
公开(公告)日：2014-02-20
申请号：US13585587
申请日：2012-08-14
申请人： Sushma Anantharam , Nirapada Ghosh , Dayavanti Gopal Kamath , Keshav Govind Kamble , Dar-Ren Leu , Chandarani J. Mendon , Vijoy A. Pandey , Nandakumar Peethambaram
发明人： Sushma Anantharam , Nirapada Ghosh , Dayavanti Gopal Kamath , Keshav Govind Kamble , Dar-Ren Leu , Chandarani J. Mendon , Vijoy A. Pandey , Nandakumar Peethambaram
IPC分类号： G06F15/16
CPC分类号： G06F9/547 , H04L29/08099 , H04L41/0213 , H04L67/40
摘要： A distributed system includes first-tier entities, and a master entity in communication with each first-tier entity. The master entity provides a single access point through which an administrator can submit commands to manage all entities. The master entity maintains a table of virtual slots. Each virtual slot points to one of the first-tier entities, and each first-tier entity is pointed to by at least one virtual slot. The processor runs an RPC (remote procedure call) client to submit RPC requests to the first-tier entities, and determines a destination first-tier entity for a given RPC request in response to which virtual slot the administrator submits a command. The distributed system can include second-tier entities, each indirectly communicating with the master entity through a first-tier entity. The table has a virtual slot for each second-tier entity, which points to the first-tier entity acting as proxy for the second-tier entity.

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