公开(公告)号：US20110069613A1

公开(公告)日：2011-03-24

申请号：US12563536

申请日：2009-09-21

申请人： Steven B. Phillips ,  Douglas Gourlay ,  Omar Sultan ,  Dino Farinacci

发明人： Steven B. Phillips ,  Douglas Gourlay ,  Omar Sultan ,  Dino Farinacci

IPC分类号： H04L12/26

CPC分类号： H04L43/0876 ,  H04L43/16 ,  H04L67/1002 ,  H04L67/1029

摘要： Systems and methods for automatically controlling efficient operation of a plurality of network appliances operatively linked and networked to balance network traffic load across a plurality of network appliances that are selectively enabled. The system facilitating performance of the method includes at least a plurality of network appliances operatively connected to a switch and controlled by a network access control module. During system operation, at any given moment in time, the plurality network appliances operate in one of two modes, fully operational or stand-by. The network appliances of the plurality that are fully operational and thereby consuming full operational power depends upon the network traffic load at any given moment in time. The network appliances functioning in a stand-by mode consume low power levels which are sufficient to allow a network appliance in stand-by mode to receive a command signal directing it to switch from stand-by to full operational mode.

摘要翻译： 用于自动控制多个网络设备的有效操作的系统和方法，所述多个网络设备可操作地链接并联网以平衡跨选择性启用的多个网络设备的网络业务负载。 促进该方法的性能的系统包括可操作地连接到交换机并由网络访问控制模块控制的至少多个网络设备。 在系统操作期间，在任何给定时刻，多个网络设备以完全可操作或待机的两种模式之一运行。 完全可操作并因此消耗完全操作功率的多个网络设备取决于在任何给定时刻的网络流量负载。 功能处于待机模式的网络设备消耗低功率水平，足以允许网络设备处于待机模式，以接收指示其从待机模式切换到完全运行模式的命令信号。

公开(公告)号：US07251681B1

公开(公告)日：2007-07-31

申请号：US11015843

申请日：2004-12-17

申请人： Douglas Gourlay

发明人： Douglas Gourlay

IPC分类号： G06F15/167

CPC分类号： H04L67/327 ,  H04L67/2852 ,  H04L67/288 ,  Y10S707/99953 ,  Y10S707/99956

摘要： Layer 7 switching may be accomplished using one or more caches placed throughout a computer network. Changes to a file on a server may be detected and propagated throughout the network. At the switch or router level, once notification of changes to a file is received, the content may be retrieved from the server and placed in a connected cache. A routing table entry may be created for the content and also placed in the cache. The routing table entry may contain an original location field identifying the original location of the content, a distance field indicating a distance from the cache to the server, and a field indicating a version number of the content. Additional fields may also be contained within the routing table entry. When a user requests a specific file, rather than forward the request directly to the server containing the original file, the request may be handled by the router closest to the user which has a connected cache containing the content. This allows a user's request to be handled much more quickly and efficiently than prior art solutions.

摘要翻译： 可以使用放置在整个计算机网络中的一个或多个高速缓存来实现层7切换。 可能在整个网络中检测并传播对服务器上文件的更改。 在交换机或路由器级别，一旦接收到对文件的更改的通知，可以从服务器检索内容并将其放置在连接的高速缓存中。 可以为内容创建路由表条目，并将其放置在高速缓存中。 路由表条目可以包含标识内容的原始位置的原始位置字段，指示从缓存到服务器的距离的距离字段以及指示内容的版本号的字段。 附加字段也可以包含在路由表条目中。 当用户请求特定文件而不是将请求直接转发到包含原始文件的服务器时，该请求可以由最接近具有连接的缓存包含该内容的用户的路由器处理。 这允许用户的请求比现有技术的解决方案更快速和有效地处理。

公开(公告)号：US06920498B1

公开(公告)日：2005-07-19

申请号：US09652766

申请日：2000-08-31

申请人： Douglas Gourlay ,  James Aviani

发明人： Douglas Gourlay ,  James Aviani

IPC分类号： G06F15/16 ,  G06F15/173 ,  H04L29/06 ,  H04L29/08

CPC分类号： H04L67/1008 ,  H04L67/1002 ,  H04L67/101 ,  H04L67/1029 ,  H04L67/14

摘要： In order to direct content requests to an appropriate content serving site in a computer network, a phased learning approach is utilized to ensure that, as best as possible, the request is made to content serving site with the shortest delay. In a setup phase, an indirect path return geographic sever load balancer times sends transit time requests to all of the individual content serving sites so that the transit requests all arrive at the content serving sites at the same time. Therefore, when the requesting fixed location receives communications from the content serving sites, it can easily tell which content serving site has the least delay by an established race condition. The winner of the race may then be relayed to the indirect path return geographic server load balancer for later usage. In an execution mode, only the m fastest content serving sites and n other sites (used to test random and new sites) are sent a transit time request when a DNS request arrives from the requesting fixed location. The particular m fastest content serving sites and n other sites may be dynamically updated so as to ensure the most reliable directing of requests. This solution provides a very efficient and effective means by which to determining closest content serving sites while keeping load balancer-created traffic at a minimum.

摘要翻译： 为了将内容请求引导到计算机网络中的适当的内容服务站点，利用分阶段学习方法来确保尽可能以最短的延迟对内容服务站点进行请求。 在设置阶段，间接路径返回地理服务器负载均衡器时间将传输时间请求发送到所有个别内容服务站点，以便转接请求都同时到达内容服务站点。 因此，当请求固定位置从内容服务站点接收到通信时，可以容易地通过建立的竞争条件来告知服务站点的哪个内容具有最小的延迟。 然后可以将比赛的获胜者转发到间接路径返回地理服务器负载平衡器以供以后使用。 在执行模式中，当DNS请求从请求的固定位置到达时，仅发送最快的内容服务站点和n个其他站点（用于测试随机和新站点）的传输时间请求。 可以动态地更新特定的最快的内容服务站点和n个其他站点，以便确保请求的最可靠的指导。 该解决方案提供了一种非常有效和有效的手段，用于确定最接近内容的服务站点，同时将负载平衡器创建的流量保持在最低限度。

公开(公告)号：US20180012633A1

公开(公告)日：2018-01-11

申请号：US15693337

申请日：2017-08-31

申请人： Hugh W. Holbrook ,  Kenneth James Duda ,  Douglas Gourlay ,  Anshul Sadana

发明人： Hugh W. Holbrook ,  Kenneth James Duda ,  Douglas Gourlay ,  Anshul Sadana

IPC分类号： G11C5/06 ,  G11C11/4093 ,  H01L25/18 ,  G11C5/02 ,  G11C11/4076 ,  H01L25/065 ,  H01L27/108

CPC分类号： G11C5/063 ,  G11C5/02 ,  G11C11/4076 ,  G11C11/4093 ,  H01L25/0657 ,  H01L25/18 ,  H01L27/108 ,  H01L2225/06541 ,  H01L2924/0002 ,  H01L2924/14 ,  H01L2924/19043 ,  H01L2924/3011 ,  H04L43/04 ,  H04L43/062 ,  H04L47/10 ,  H04L47/30 ,  H04L47/32

摘要： A method and apparatus of a device that determines a cause and effect of congestion in this device is described. In an exemplary embodiment, the device measures a queue group occupancy of a queue group for a port in the device, where the queue group stores a plurality of packets to be communicated through that port. In addition, the device determines if the measurement indicates a potential congestion of the queue group, where the congestion prevents a packet from being communicated within a time period. If potential congestion exists on that queue group, the device further gathers information regarding packets to be transmitted through that port. For example, the device can gather statistics packets that are stored in the queue group and/or new enqueue packets.

公开(公告)号：US20050243826A1

公开(公告)日：2005-11-03

申请号：US10833377

申请日：2004-04-28

申请人： Michael Smith ,  Douglas Gourlay ,  Jeffrey Wang ,  Ali Golshan

发明人： Michael Smith ,  Douglas Gourlay ,  Jeffrey Wang ,  Ali Golshan

IPC分类号： H04L12/28

CPC分类号： H04L41/0813 ,  H04L12/08 ,  H04L12/2854 ,  H04L41/04 ,  H04L41/082 ,  H04L41/12 ,  H04L47/10

摘要： An adjunct network device includes several ports, an uplink interface, and an adjunct forwarding engine coupled to the ports and the uplink interface. A first port is configured to receive a packet, which includes a destination address. The adjunct forwarding engine is configured to send the packet to the uplink interface if the destination address is not associated with any of the ports. The packet is sent to one of the ports if the destination address is associated with the one of the ports.

摘要翻译： 辅助网络设备包括多个端口，上行链路接口和耦合到端口和上行链路接口的辅助转发引擎。 第一端口被配置为接收包括目的地地址的分组。 如果目的地址不与任何端口相关联，则附加转发引擎被配置为将该分组发送到上行链路接口。 如果目的地址与其中一个端口相关联，则将数据包发送到其中一个端口。

公开(公告)号：US20140280846A1

公开(公告)日：2014-09-18

申请号：US14199813

申请日：2014-03-06

申请人： Douglas Gourlay ,  Andre Henri Joseph Pech

发明人： Douglas Gourlay ,  Andre Henri Joseph Pech

IPC分类号： H04L12/24

CPC分类号： H04L41/00 ,  H04L12/4641 ,  H04L41/04 ,  H04L41/0803 ,  H04L41/082 ,  H04L41/0853 ,  H04L41/0886 ,  H04L41/0893 ,  H04L61/103 ,  H04L61/1511 ,  H04L61/2015 ,  H04L63/0876 ,  H04L63/101 ,  H04L63/20 ,  Y02D30/30

摘要： A method and apparatus of a device that determines a network policy for an attached device based on one or more characteristics of the attached device is described. In one example, a network element detects a device on a port coupled to a link connecting the network element and the device. In response to the detecting of the device on the port, the network element further determines a device configuration signature from the device, where the device configuration signature based on a configuration of the device. The network element additionally determines a port-based network policy based on the device configuration signature. The network element applies the port-based network policy to the port, wherein the network element applies the port-based network policy to process network data communicated through the port.

摘要翻译： 描述了基于所附连设备的一个或多个特性来确定所附连设备的网络策略的设备的方法和设备。 在一个示例中，网络元件检测耦合到连接网络元件和设备的链路的端口上的设备。 响应于端口上的设备的检测，网元进一步确定来自设备的设备配置签名，其中基于设备的配置的设备配置签名。 网元还基于设备配置签名来确定基于端口的网络策略。 网元将基于端口的网络策略应用于端口，其中网元应用基于端口的网络策略来处理通过端口传送的网络数据。

公开(公告)号：US08315157B2

公开(公告)日：2012-11-20

申请号：US12167182

申请日：2008-07-02

申请人： Victor M. Moreno ,  Mark Berly ,  Douglas Gourlay ,  Tameen Khan

发明人： Victor M. Moreno ,  Mark Berly ,  Douglas Gourlay ,  Tameen Khan

IPC分类号： H04L12/28

CPC分类号： H04L41/082 ,  H04L41/12

摘要： In one embodiment, when a network element is to be removed from or inserted into a network a Graceful Operations Manager schedules graceful shut-down and/or start-up routines for different protocols and/or components on the network element in an optimal order based on dependencies between the different protocols and components. The Graceful Operations Manager communicates with the different components at different stages of their shut-down or start-up process and communicates information on the standby topology across components and/or protocols to enable the synchronization of the standby topology computation on all components and/or protocols that are affected by the removal or insertion.

摘要翻译： 在一个实施例中，当网络元件要从网络中移除或插入到网络中时，平稳运营管理器以最佳顺序为网络元件上的不同协议和/或组件调度正常关闭和/或启动例程 在不同协议和组件之间的依赖关系。 平稳运营经理在其关闭或启动过程的不同阶段与不同组件进行通信，并在组件和/或协议之间传递备用拓扑上的信息，以使所有组件上的备用拓扑计算和/或 受删除或插入影响的协议。

公开(公告)号：US07719992B1

公开(公告)日：2010-05-18

申请号：US10890593

申请日：2004-07-14

申请人： Douglas Gourlay ,  Omar Abuabara ,  Vinayak M. Kamat ,  Marco Foschiano

发明人： Douglas Gourlay ,  Omar Abuabara ,  Vinayak M. Kamat ,  Marco Foschiano

IPC分类号： G01R31/08 ,  G06F11/00 ,  G08C15/00 ,  H04J1/16 ,  H04J3/14 ,  H04L1/00 ,  H04L12/26 ,  H04L12/28 ,  G05B11/01 ,  G01R15/00 ,  G01C17/38

CPC分类号： H04L43/50 ,  H04L41/06 ,  H04L43/0817

摘要： A method for cable diagnostics in a network includes performing a test to determine initial state information for each of a plurality of lines coupled to a switch and storing the initial state information in a database. When a change in the state of a line is detected, the test is re-run to determine new state information of the line. The new state information is stored in the database and a message that identifies the change in state and a likely cause of the state change is issued to a network operator. It is emphasized that this abstract is provided to comply with the rules requiring an abstract that will allow a searcher or other reader to quickly ascertain the subject matter of the technical disclosure. It is submitted with the understanding that it will not be used to interpret or limit the scope or meaning of the claims.

摘要翻译： 用于网络中的电缆诊断的方法包括执行测试以确定耦合到交换机的多条线路中的每一条线路的初始状态信息，并将初始状态信息存储在数据库中。 当检测到线路状态的变化时，重新测试该测试以确定线路的新状态信息。 新的状态信息被存储在数据库中，并且向网络运营商发出标识状态改变和状态改变的可能原因的消息。 要强调的是，该摘要被提供以符合要求抽象的规则，允许搜索者或其他读者快速确定技术公开内容的主题。 提交它的理解是，它不会用于解释或限制权利要求的范围或含义。

公开(公告)号：US20100002577A1

公开(公告)日：2010-01-07

申请号：US12167182

申请日：2008-07-02

申请人： VICTOR M. MORENO ,  MARK BERLY ,  Douglas Gourlay ,  TAMEEN KHAN

发明人： VICTOR M. MORENO ,  MARK BERLY ,  Douglas Gourlay ,  TAMEEN KHAN

IPC分类号： G06F11/00 ,  H04L12/28

CPC分类号： H04L41/082 ,  H04L41/12

摘要： In one embodiment, when a network element is to be removed from or inserted into a network a Graceful Operations Manager schedules graceful shut-down and/or start-up routines for different protocols and/or components on the network element in an optimal order based on dependencies between the different protocols and components. The Graceful Operations Manager communicates with the different components at different stages of their shut-down or start-up process and communicates information on the standby topology across components and/or protocols to enable the synchronization of the standby topology computation on all components and/or protocols that are affected by the removal or insertion.

摘要翻译： 在一个实施例中，当网络元件要从网络中移除或插入到网络中时，平稳运营管理器以最佳顺序为网络元件上的不同协议和/或组件调度正常关闭和/或启动例程 在不同协议和组件之间的依赖关系。 平稳运营经理在其关闭或启动过程的不同阶段与不同组件进行通信，并在组件和/或协议之间传递备用拓扑上的信息，以使所有组件上的备用拓扑计算和/或 受删除或插入影响的协议。

公开(公告)号：US07349969B2

公开(公告)日：2008-03-25

申请号：US11096838

申请日：2005-03-31

申请人： Douglas Gourlay ,  James Aviani

发明人： Douglas Gourlay ,  James Aviani

IPC分类号： G06F15/16 ,  G06F15/173 ,  G06Q30/00

CPC分类号： H04L67/1008 ,  H04L67/1002 ,  H04L67/101 ,  H04L67/1029 ,  H04L67/14

摘要： In order to direct content requests to an appropriate content serving site in a computer network, a phased learning approach is utilized to ensure that, as best as possible, the request is made to content serving site with the shortest delay. In a setup phase, an indirect path return geographic sever load balancer times queries to all of the individual content serving sites so that the queries all arrive at the content serving sites at the same time. Therefore, when the requesting fixed location receives communications from the content serving sites, it can easily tell which content serving site has the least delay by an established race condition. The winner of the race may then be relayed to the indirect path return geographic server load balancer for later usage. In an execution mode, only the m fastest content serving sites and n other sites (used to test random and new sites) are queried when a DNS request arrives from the requesting fixed location. The particular m fastest content serving sites and n other sites may be dynamically updated so as to ensure the most reliable directing of requests. This solution provides a very efficient and effective means by which to determine closest content serving sites while keeping load balancer-created traffic at a minimum.

摘要翻译： 为了将内容请求引导到计算机网络中的适当的内容服务站点，利用分阶段学习方法来确保尽可能以最短的延迟对内容服务站点进行请求。 在设置阶段，间接路径返回地理服务器负载平衡器对所有个别内容服务站点进行查询，以便查询都同时到达内容服务站点。 因此，当请求固定位置从内容服务站点接收到通信时，可以容易地通过建立的竞争条件来告知服务站点的哪个内容具有最小的延迟。 然后可以将比赛的获胜者转发到间接路径返回地理服务器负载平衡器以供以后使用。 在执行模式下，当DNS请求从请求的固定位置到达时，仅查询最快的内容服务站点和n个其他站点（用于测试随机和新站点）。 可以动态地更新特定的最快的内容服务站点和n个其他站点，以便确保请求的最可靠的指导。 该解决方案提供了一种非常有效和有效的手段，用于确定最接近的内容服务站点，同时将负载平衡器创建的流量保持在最低限度。