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。

公开(公告)号：US20080046558A1

公开(公告)日：2008-02-21

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： G06F15/173

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。

公开(公告)号：US20120072588A1

公开(公告)日：2012-03-22

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： G06F15/173

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。

公开(公告)号：US08065559B2

公开(公告)日：2011-11-22

申请号：US12128978

申请日：2008-05-29

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。

公开(公告)号：US07926116B2

公开(公告)日：2011-04-12

申请号：US12608753

申请日：2009-10-29

申请人： Sandeep Kamath ,  Josephine Suganthi ,  Anil Shetty ,  Sergey Verzunov ,  Murali Raja

发明人： Sandeep Kamath ,  Josephine Suganthi ,  Anil Shetty ,  Sergey Verzunov ,  Murali Raja

IPC分类号： H04L29/00

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。

公开(公告)号：US20090300407A1

公开(公告)日：2009-12-03

申请号：US12128978

申请日：2008-05-29

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： G06F11/20

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。

公开(公告)号：US20100036951A1

公开(公告)日：2010-02-11

申请号：US12608753

申请日：2009-10-29

申请人： Sandeep Kamath ,  Josephine Suganthi ,  Anil Shetty ,  Sergey Verzunov ,  Murali Raja

发明人： Sandeep Kamath ,  Josephine Suganthi ,  Anil Shetty ,  Sergey Verzunov ,  Murali Raja

IPC分类号： G06F15/16

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。

公开(公告)号：US20080043622A1

公开(公告)日：2008-02-21

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： H04J1/16 ,  G06F15/173

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。

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。

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。