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1. 发明授权

US08812904B2 Systems and methods for load balancing via a plurality of virtual servers upon failover using metrics from a backup virtual server 有权
标题翻译：使用来自备份虚拟服务器的指标进行故障转移时，通过多个虚拟服务器进行负载平衡的系统和方法
公开(公告)号：US08812904B2
公开(公告)日：2014-08-19
申请号：US13302880
申请日：2011-11-22
申请人： Sandeep Kamath , Josephine Suganthi , Sergey Verzunov , Murali Raja , Anil Shetty
发明人： Sandeep Kamath , Josephine Suganthi , Sergey Verzunov , Murali Raja , Anil Shetty
IPC分类号： G06F11/00
CPC分类号： G06F9/505 , H04L67/1002 , H04L67/1008 , H04L67/101 , H04L67/1012 , H04L67/1029 , H04L67/1034
摘要： The present invention provides methods and systems for performing load balancing via a plurality of virtual servers upon a failover using metrics from a backup virtual server. The methods and systems described herein provide systems and methods for an appliance detecting that a first virtual server of a plurality of virtual servers having one or more backup virtual servers load balanced by an appliance is not available, identifying at least a first backup virtual server of a one or more backup virtual servers of the first virtual server is available, maintaining a status of the first virtual server as available in response to the identification, obtaining one or more metrics from the first backup virtual server of a one or more backup virtual servers, and determining the load across the plurality of virtual servers using the metrics obtained from the first backup virtual server associated with the first virtual server.
摘要翻译：本发明提供了使用来自备份虚拟服务器的度量的故障转移时通过多个虚拟服务器执行负载平衡的方法和系统。本文所述的方法和系统提供用于设备的系统和方法，该系统和方法检测具有由设备负载平衡的一个或多个备份虚拟服务器的多个虚拟服务器的第一虚拟服务器不可用，至少识别至少第一备份虚拟服务器第一虚拟服务器的一个或多个备份虚拟服务器可用，响应于该标识将第一虚拟服务器的状态维持为可用，从一个或多个备份虚拟服务器的第一备份虚拟服务器获取一个或多个度量以及使用从与所述第一虚拟服务器相关联的所述第一备份虚拟服务器获得的度量来确定所述多个虚拟服务器之间的负载。

2. 发明授权

US08484656B2 Systems and methods for providing global server load balancing of heterogeneous devices 有权
标题翻译：提供异构设备的全局服务器负载平衡的系统和方法
公开(公告)号：US08484656B2
公开(公告)日：2013-07-09
申请号：US11685163
申请日：2007-03-12
申请人： Murali Raja , Josephine Suganthi , Sandeep Kamath , Sergey Verzunov
发明人： Murali Raja , Josephine Suganthi , Sandeep Kamath , Sergey Verzunov
IPC分类号： G06F9/46 , G06F15/173
CPC分类号： H04L67/1008 , H04L41/0213 , H04L41/046 , H04L41/0896 , H04L43/0817 , H04L43/0864 , H04L43/16 , H04L67/1002 , H04L67/1012 , H04L67/1029
摘要： The present invention provides improvements to load balancing by providing a load balancing solution that distributes a load among a plurality of heterogenous devices, such as different types of local load balancers, using metrics collected from the different devices. The load balancing appliance collects metrics from heterogenous devices using a network management protocol and communication model, such as a Simple Network Management Protocol (SNMP). These heterogenous device metrics are available on the load balancing appliance with appliance determined metrics and metrics obtained by the appliance from homogenous devices using a metric exchange protocol. Via a configuration interface of the appliance, a user can select one or more of these different metrics for global load balancing. As such, the load balancing appliance described herein obtains a multitude of metrics from the different devices under management. Additionally, the load balancing appliance described herein provides great flexibility in allowing the user to configure the global load balancer based on the user's understanding of these multitudes of metrics and to take into account the different characteristics and behaviors of the heterogenous devices.
摘要翻译：本发明通过提供使用从不同设备收集的度量在多个异构设备（例如不同类型的本地负载平衡器）中分配负载的负载平衡解决方案来提供对负载平衡的改进。负载平衡设备使用网络管理协议和通信模型（如简单网络管理协议（SNMP））从异构设备收集指标。这些异构设备指标在负载平衡设备上可用，具有设备确定的设备使用度量交换协议从均匀设备获取的度量和度量。通过设备的配置界面，用户可以选择这些不同度量中的一个或多个来进行全局负载平衡。因此，本文描述的负载平衡装置从管理的不同设备获得多个度量。此外，这里描述的负载平衡装置提供了很大的灵活性，允许用户基于用户对这些多个度量的理解来配置全局负载平衡器，并且考虑到异质设备的不同特性和行为。

3. 发明授权

US08275871B2 Systems and methods for providing dynamic spillover of virtual servers based on bandwidth 有权
标题翻译：基于带宽提供虚拟服务器的动态溢出的系统和方法
公开(公告)号：US08275871B2
公开(公告)日：2012-09-25
申请号：US12609184
申请日：2009-10-30
申请人： Maruthi Ram , Joesphine Suganthi , Sergey Verzunov , Sandeep Kamath
发明人： Maruthi Ram , Joesphine Suganthi , Sergey Verzunov , Sandeep Kamath
IPC分类号： G06F15/173
CPC分类号： G06F9/5083 , H04L29/08846 , H04L67/1002 , H04L67/1008 , H04L67/101 , H04L67/1012 , H04L67/1029 , H04L67/2814 , H04L67/2871 , H04L67/288 , H04L67/327
摘要： The present solution provides a spillover management technique for virtual servers of an appliance based on bandwidth. A network administrator may configure a bandwidth threshold for one or more virtual servers, such as virtual servers providing acceleration or load balancing for one or more services. The bandwidth threshold may be specified as a number of bytes transferred via the virtual server. The bandwidth threshold may also be specified as a round trip time or derivative thereof. A user may specify the bandwidth threshold via a configuration interface. Otherwise, the appliance may establish the bandwidth threshold. The appliance monitors the bandwidth used by a first virtual server. In response to detecting the bandwidth reaching or exceeding the bandwidth threshold, the appliance dynamically directs client requests to a second virtual server.
摘要翻译：本解决方案为基于带宽的设备的虚拟服务器提供了溢出管理技术。网络管理员可以为一个或多个虚拟服务器配置带宽阈值，例如为一个或多个服务提供加速或负载平衡的虚拟服务器。可以将带宽阈值指定为经由虚拟服务器传送的字节数。带宽阈值也可以被指定为往返时间或其导数。用户可以通过配置界面指定带宽阈值。否则，设备可以建立带宽阈值。设备监视第一个虚拟服务器使用的带宽。响应于检测带宽达到或超过带宽阈值，设备动态地将客户端请求指向第二虚拟服务器。

4. 发明授权

US08230055B2 Method and appliance for using a dynamic response time to determine responsiveness of network services 有权
标题翻译：使用动态响应时间来确定网络服务响应能力的方法和设备
公开(公告)号：US08230055B2
公开(公告)日：2012-07-24
申请号：US12753516
申请日：2010-04-02
申请人： Ravi Kondamuru , Josephine Suganthi , Murali Raja , Sandeep Kamath , Sergey Verzunov , Anil Shetty
发明人： Ravi Kondamuru , Josephine Suganthi , Murali Raja , Sandeep Kamath , Sergey Verzunov , Anil Shetty
IPC分类号： G06F11/00
CPC分类号： H04L41/5009 , H04L43/0852 , H04L43/16
摘要： In a method and appliance for determining responsiveness of a service via a particular protocol, a device intermediary to a plurality of clients and a plurality of services determines response times from each of a plurality of services to respond to requests via a first type of protocol of a plurality of protocols. The device calculates an average response time for the first type of protocol from each of the response times of the plurality of services. The device establishes a predetermined threshold for which a response time of a service for the first type of protocol may deviate from the average response time. The device identifies a service as available responsive to determining that a deviation of the response time of the service from the average response falls within the predetermined threshold.
摘要翻译：在用于通过特定协议确定服务的响应性的方法和设备中，多个客户机和多个服务的设备中介器确定来自多个服务中的每一个的响应时间，以经由第一类型的协议来响应请求多个协议。设备从多个服务的每个响应时间计算第一类型的协议的平均响应时间。设备建立预定的阈值，对于该预定阈值，用于第一类型协议的服务的响应时间可能偏离平均响应时间。响应于确定服务的响应时间与平均响应的偏差落在预定阈值内，设备将服务标识为可用。

5. 发明授权

US08116207B2 Systems and methods for weighted monitoring of network services 有权
标题翻译：网络服务加权监控系统与方法
公开(公告)号：US08116207B2
公开(公告)日：2012-02-14
申请号：US11466026
申请日：2006-08-21
申请人： Arcady Schekochikhin , Sandeep Kamath , Anil Shetty , Sergey Verzunov
发明人： Arcady Schekochikhin , Sandeep Kamath , Anil Shetty , Sergey Verzunov
IPC分类号： H04L12/26 , G06F15/173
CPC分类号： H04L43/0817 , H04L43/16 , H04L67/1002 , H04L67/1008 , H04L67/101 , H04L67/1012 , H04L67/1029
摘要： A method for determining service availability using a plurality of weighted monitoring agents includes: establishing, by an appliance, a plurality of agents, the plurality of agents monitoring a service executing on a server, and each agent having an assigned weight; computing, by the appliance, a sum of the assigned weights of the agents reporting the service as currently operational; determining, by the appliance, the sum falls below a given threshold; and transmitting, by the appliance, an indication that the service is unusable. Corresponding systems are also described.
摘要翻译：使用多个加权监视代理来确定服务可用性的方法包括：由设备建立多个代理，所述多个代理监视在服务器上执行的服务，以及每个具有分配权重的代理; 由设备计算报告服务当前可操作的代理的分配权重的总和; 由设备确定总和低于给定阈值; 并且由所述设备发送所述服务不可用的指示。还描述了相应的系统。

6. 发明授权

US07720954B2 Method and appliance for using a dynamic response time to determine responsiveness of network services 有权
标题翻译：使用动态响应时间来确定网络服务响应能力的方法和设备
公开(公告)号：US07720954B2
公开(公告)日：2010-05-18
申请号：US11462344
申请日：2006-08-03
申请人： Murali Raja , Ravi Kondamuru , Josephine Suganthi , Sergey Verzunov , Sandeep Kamath , Anil Shetty
发明人： Murali Raja , Ravi Kondamuru , Josephine Suganthi , Sergey Verzunov , Sandeep Kamath , Anil Shetty
IPC分类号： G06F11/00
CPC分类号： H04L41/5009 , H04L43/0852 , H04L43/16
摘要： In a method and appliance for using a dynamic response time to determine responsiveness of one or more network services on a server, a monitor determines a response time for each of one or more network services. The monitor establishes an average response time based on the determined response time for each of the one or more network services. The monitor associates with the established average response time a predetermined threshold for which the response time of the one or more network services may deviate from the average response time and maintain an indication of responsiveness. The monitor monitors the response time of the one or more network services to one or more requests. The monitor determines that the response time of the one or more network services deviates from the average response time by the predetermined threshold. The monitor indicates that the one or more network services are unavailable.
摘要翻译：在用于使用动态响应时间来确定服务器上的一个或多个网络服务的响应性的方法和装置中，监视器确定一个或多个网络服务中的每一个的响应时间。监视器基于针对每个一个或多个网络服务的确定的响应时间建立平均响应时间。监视器将建立的平均响应时间与预定阈值相关联，预定阈值，一个或多个网络服务的响应时间可以偏离平均响应时间并保持响应性的指示。监视器监视一个或多个网络服务对一个或多个请求的响应时间。监视器确定一个或多个网络服务的响应时间偏离平均响应时间预定阈值。监视器指示一个或多个网络服务不可用。

7. 发明申请

US20080225718A1 Systems and Methods for Providing Global Server Load Balancing of Heterogeneous Devices 有权
标题翻译：为异构设备提供全球服务器负载平衡的系统和方法
公开(公告)号：US20080225718A1
公开(公告)日：2008-09-18
申请号：US11685163
申请日：2007-03-12
申请人： Murali Raja , Josephine Suganthi , Sandeep Kamath , Sergey Verzunov
发明人： Murali Raja , Josephine Suganthi , Sandeep Kamath , Sergey Verzunov
IPC分类号： H04J3/14
CPC分类号： H04L67/1008 , H04L41/0213 , H04L41/046 , H04L41/0896 , H04L43/0817 , H04L43/0864 , H04L43/16 , H04L67/1002 , H04L67/1012 , H04L67/1029
摘要： The present invention provides improvements to load balancing by providing a load balancing solution that distributes a load among a plurality of heterogenous devices, such as different types of local load balancers, using metrics collected from the different devices. The load balancing appliance collects metrics from heterogenous devices using a network management protocol and communication model, such as a Simple Network Management Protocol (SNMP). These heterogenous device metrics are available on the load balancing appliance with appliance determined metrics and metrics obtained by the appliance from homogenous devices using a metric exchange protocol. Via a configuration interface of the appliance, a user can select one or more of these different metrics for global load balancing. As such, the load balancing appliance described herein obtains a multitude of metrics from the different devices under management. Additionally, the load balancing appliance described herein provides great flexibility in allowing the user to configure the global load balancer based on the user's understanding of these multitudes of metrics and to take into account the different characteristics and behaviors of the heterogenous devices.
摘要翻译：本发明通过提供使用从不同设备收集的度量在多个异构设备（例如不同类型的本地负载平衡器）中分配负载的负载平衡解决方案来提供对负载平衡的改进。负载平衡设备使用网络管理协议和通信模型（如简单网络管理协议（SNMP））从异构设备收集指标。这些异构设备指标在负载平衡设备上可用，具有设备确定的设备使用度量交换协议从均匀设备获取的度量和度量。通过设备的配置界面，用户可以选择这些不同度量中的一个或多个来进行全局负载平衡。因此，本文描述的负载平衡装置从管理的不同设备获得多个度量。此外，这里描述的负载平衡装置提供了很大的灵活性，允许用户基于用户对这些多个度量的理解来配置全局负载平衡器，并且考虑到异质设备的不同特性和行为。

8. 发明授权

US08493858B2 Systems and methods for providing dynamic connection spillover among virtual servers 有权
标题翻译：在虚拟服务器之间提供动态连接溢出的系统和方法
公开(公告)号：US08493858B2
公开(公告)日：2013-07-23
申请号：US11466238
申请日：2006-08-22
申请人： Sandeep Kamath , Josephine Suganthi , Sergey Verzunov , Anil Shetty
发明人： Sandeep Kamath , Josephine Suganthi , Sergey Verzunov , Anil Shetty
IPC分类号： G01R31/08 , G06F15/173 , G06F15/16
CPC分类号： H04L43/16 , H04L67/1002 , H04L67/1008 , H04L67/101 , H04L67/1012 , H04L67/1029 , H04L67/1031
摘要： A method for an appliance to switch handling of transport layer connection requests from a first virtual server of the appliance managing a first plurality of services to a second virtual server of the appliance managing a second plurality of services upon exceeding, by the first virtual server, a maximum connection threshold determined dynamically from a status of the first plurality of services. The method includes the steps of: establishing, on an appliance, a first virtual server which directs transport layer connection requests from a plurality of clients to a first plurality of services; establishing, via the appliance, a predetermined threshold identifying a maximum active transport layer connection capacity for the first virtual server, the predetermined threshold comprising a sum of a predetermined connection capacity for each of the plurality of services; monitoring, by the appliance, a status for each of the plurality of services; determining, by the appliance, the status of a service of the plurality of services indicates the service is not available; and adjusting, by the appliance in response to the determination, the predetermined threshold to comprise the sum of the predetermined connection capacity for each of the plurality of services having a status of available. Corresponding systems are also described.
摘要翻译：一种用于在由第一虚拟服务器超过第一虚拟服务器的情况下，设备将来自管理第一多个服务的设备的第一虚拟服务器的处理切换到设备的第二虚拟服务器的管理方法，从所述第一多个服务的状态动态地确定的最大连接阈值。该方法包括以下步骤：在设备上建立将来自多个客户端的传输层连接请求引导到第一多个服务的第一虚拟服务器; 通过所述设备建立标识所述第一虚拟服务器的最大活动传输层连接容量的预定阈值，所述预定阈值包括所述多个服务中的每一个的预定连接容量之和; 由所述设备监视所述多个服务中的每一个的状态; 由所述设备确定所述多个服务的服务的状态指示所述服务不可用; 以及响应于所述确定，由所述设备调整所述预定阈值以包括具有可用状态的所述多个服务中的每一个的预定连接容量之和。还描述了相应的系统。

9. 发明授权

US08141164B2 Systems and methods for dynamic decentralized load balancing across multiple sites 有权
标题翻译：跨多个站点进行动态分散负载平衡的系统和方法
公开(公告)号：US08141164B2
公开(公告)日：2012-03-20
申请号：US11466019
申请日：2006-08-21
申请人： Sandeep Kamath , Murali Raja , Josephine Suganthi , Anil Shetty , Sergey Verzunov
发明人： Sandeep Kamath , Murali Raja , Josephine Suganthi , Anil Shetty , Sergey Verzunov
IPC分类号： H04L29/06
CPC分类号： H04L43/08 , H04L43/0805 , H04L47/10 , H04L67/1002 , H04L67/1008 , H04L67/1012 , H04L67/1029
摘要： A method for enabling decentralized dynamic load balancing among a plurality of appliances providing access to a plurality of sites, each site comprising a local area network and at least one server includes: determining, by a first appliance, a first number of services currently available for access via a local area network connected to the first appliance; receiving, by the first appliance from a second appliance, a communication indicating a second number of services currently available for access via a local area network connected to the second appliance; receiving, by the first appliance, a plurality of requests to connect to a service; determining, by the first appliance, a weight to be assigned to the second appliance, wherein the determination is responsive to the second number; and forwarding, by the first appliance to the second appliance, a subset of the plurality of requests, wherein the number of requests comprising the subset is determined in response to the determined weight. Corresponding systems are also described.
摘要翻译：一种用于在提供对多个站点的访问的多个设备之间实现分散式动态负载平衡的方法，每个站点包括局域网和至少一个服务器包括：由第一设备确定当前可用于通过连接到第一设备的局域网访问; 由第一设备从第二设备接收指示当前可用于经由连接到第二设备的局域网访问的第二数量的服务的通信; 由所述第一设备接收多个连接到服务的请求; 由所述第一设备确定要分配给所述第二设备的重量，其中所述确定响应于所述第二数量; 以及由所述第一设备向所述第二设备转发所述多个请求的子集，其中响应于所确定的权重来确定包括所述子集的请求的数量。还描述了相应的系统。

10. 发明申请

US20080049786A1 Systems and Methods for Providing Dynamic Spillover of Virtual Servers Based on Bandwidth 有权
标题翻译：基于带宽提供虚拟服务器动态溢出的系统和方法
公开(公告)号：US20080049786A1
公开(公告)日：2008-02-28
申请号：US11685186
申请日：2007-03-12
申请人： Maruthi Ram , Josephine Suganthi , Sergey Verzunov , Sandeep Kamath
发明人： Maruthi Ram , Josephine Suganthi , Sergey Verzunov , Sandeep Kamath
IPC分类号： H04J3/16
CPC分类号： G06F9/5083 , H04L29/08846 , H04L67/1002 , H04L67/1008 , H04L67/101 , H04L67/1012 , H04L67/1029 , H04L67/2814 , H04L67/2871 , H04L67/288 , H04L67/327
摘要： The present solution provides a spillover management technique for virtual servers of an appliance based on bandwidth. A network administrator may configure a bandwidth threshold for one or more virtual servers, such as virtual servers providing acceleration or load balancing for one or more services. The bandwidth threshold may be specified as a number of bytes transferred via the virtual server. The bandwidth threshold may also be specified as a round trip time or derivative thereof. A user may specify the bandwidth threshold via a configuration interface. Otherwise, the appliance may establish the bandwidth threshold. The appliance monitors the bandwidth used by a first virtual server. In response to detecting the bandwidth reaching or exceeding the bandwidth threshold, the appliance dynamically directs client requests to a second virtual server.
摘要翻译：本解决方案为基于带宽的设备的虚拟服务器提供了溢出管理技术。网络管理员可以为一个或多个虚拟服务器配置带宽阈值，例如为一个或多个服务提供加速或负载平衡的虚拟服务器。可以将带宽阈值指定为经由虚拟服务器传送的字节数。带宽阈值也可以被指定为往返时间或其导数。用户可以通过配置界面指定带宽阈值。否则，设备可以建立带宽阈值。设备监视第一个虚拟服务器使用的带宽。响应于检测带宽达到或超过带宽阈值，设备动态地将客户端请求指向第二虚拟服务器。

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