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1. 发明申请

WO2008112691A3 SYSTEMS AND METHODS FOR PROVIDING DYNAMIC SPILLOVER OF VIRTUAL SERVERS BASED ON BANDWIDTH 审中-公开
公开(公告)号：WO2008112691A3
公开(公告)日：2008-09-18
申请号：PCT/US2008/056518
申请日：2008-03-11
申请人： CITRIX SYSTEMS, INC. , RAM, Maruthi , SUGANTHI, Josephine , VERZUNOV, Sergey , KAMATH, Sandeep
发明人： RAM, Maruthi , SUGANTHI, Josephine , VERZUNOV, Sergey , KAMATH, Sandeep
IPC分类号： H04L29/06 , G06F9/50
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.

2. 发明申请

WO2008017026A1 A METHOD AND APPLIANCE FOR USING A DYNAMIC RESPONSE TIME TO DETERMINE RESPONSIVENESS OF NETWORK SERVICES 审中-公开
标题翻译：使用动态响应时间确定网络服务响应的方法和设备
公开(公告)号：WO2008017026A1
公开(公告)日：2008-02-07
申请号：PCT/US2007/075068
申请日：2007-08-02
申请人： CITRIX SYSTEMS, INC. , RAJA, Murali , KONDAMURU, Ravi , SUGANTHI, Josephine , VERZUNOV, Sergey , KAMATH, Sandeep , SHETTY, Anil
发明人： RAJA, Murali , KONDAMURU, Ravi , SUGANTHI, Josephine , VERZUNOV, Sergey , KAMATH, Sandeep , SHETTY, Anil
IPC分类号： H04L12/24 , H04L12/26
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。

3. 发明申请

WO2009146311A1 SYSTEMS AND METHODS FOR LOAD BALANCING VIA A PLURALITY OF VIRTUAL SERVERS UPON FAILOVER USING METRICS FROM A BACKUP VIRTUAL SERVER 审中-公开
标题翻译：通过使用来自备用虚拟服务器的度量的故障发生的虚拟服务器的大量虚拟服务器的负载平衡的系统和方法
公开(公告)号：WO2009146311A1
公开(公告)日：2009-12-03
申请号：PCT/US2009/045247
申请日：2009-05-27
申请人： CITRIX SYSTEMS, INC. , KAMATH, Sandeep , SUGANTHI, Josephine , VERZUNOV, Sergey , RAJA, Murali , SHETTY, Anil
发明人： KAMATH, Sandeep , SUGANTHI, Josephine , VERZUNOV, Sergey , RAJA, Murali , SHETTY, Anil
IPC分类号： G06F9/50 , H04L29/08
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。

4. 发明申请

WO2008112698A3 SYSTEMS AND METHODS FOR PROVIDING GLOBAL SERVER LOAD BALANCING OF HETEROGENOUS DEVICES 审中-公开
公开(公告)号：WO2008112698A3
公开(公告)日：2008-09-18
申请号：PCT/US2008/056526
申请日：2008-03-11
申请人： CITRIX SYSTEMS, INC. , RAJA, Murali , SUGANTHI, Josephine , KAMATH, Sandeep , VERZUNOV, Sergey
发明人： RAJA, Murali , SUGANTHI, Josephine , KAMATH, Sandeep , VERZUNOV, Sergey
IPC分类号： H04L29/06 , H04L12/24
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.

5. 发明申请

WO2010068441A1 SYSTEMS AND METHODS FOR GSLB BASED ON SSL VPN USERS 审中-公开
标题翻译：基于SSL VPN用户的GSLB系统与方法
公开(公告)号：WO2010068441A1
公开(公告)日：2010-06-17
申请号：PCT/US2009/065726
申请日：2009-11-24
申请人： CITRIX SYSTEMS, INC. , SUGANTHI, Josephine , RAJA, Murali , KAMATH, Sandeep
发明人： SUGANTHI, Josephine , RAJA, Murali , KAMATH, Sandeep
IPC分类号： H04L29/08
CPC分类号： H04L67/1002 , H04L12/4641 , H04L63/0227 , H04L63/0272 , H04L63/1433 , H04L63/166 , H04L67/1008
摘要： The present invention provides a system and a method for global server load balancing of a plurality of sites based on a number of Secure Socket Layer Virtual Private Network (SSL VPN) users. The SSL VPN users may access servers at each of the plurality of sites. A global server load balancing virtual server (GSLB) may receive a request to access a server. The GSLB virtual server may load balance a plurality of sites wherein each of the plurality of sites may further comprising a load balancing virtual server load balancing users accessing the server accessing servers via an SSL VPN session. GSLB may receive from a first load balancing virtual server at a first site, a first number of current SSL VPN users accessing servers from the first site via SSL VPN sessions. The GSLB may also receive from a second load balancing virtual server at a second site, a second number of current SSL VPN users of the users accessing servers from the second site via SSL VPN sessions. GSLB may determine to forward the request to one of the first load balancing virtual server of the first site or the second load balancing virtual server of the second site by load balancing SSL VPN users across the plurality of sites based on the first number of current SSL VPN users and the second number of current SSL VPN users.
摘要翻译：本发明提供了一种基于多个安全套接层虚拟专用网（SSL VPN）用户的多个站点的全局服务器负载平衡的系统和方法。 SSL VPN用户可以访问多个站点中的每个站点上的服务器。全局服务器负载平衡虚拟服务器（GSLB）可能会收到访问服务器的请求。 GSLB虚拟服务器可以负载平衡多个站点，其中多个站点中的每个站点还可以包括负载平衡虚拟服务器负载平衡通过SSL VPN会话访问服务器访问服务器的用户的负载。 GSLB可以从第一站点的第一个负载平衡虚拟服务器接收，第一个当前SSL VPN用户通过SSL VPN会话从第一个站点访问服务器。 GSLB还可以从第二站点的第二负载平衡虚拟服务器接收第二数量的用户通过SSL VPN会话从第二站点访问服务器的当前SSL VPN用户。 GSLB可以基于当前SSL的第一数量来负责平衡多个站点中的SSL VPN用户来将请求转发到第一站点的第一负载平衡虚拟服务器或第二站点的第二负载平衡虚拟服务器之一 VPN用户和第二个当前SSL VPN用户数。

6. 发明申请

WO2008017012A3 SYSTEMS AND METHODS FOR HIERARCHICAL GLOBAL LOAD BALANCING 审中-公开
公开(公告)号：WO2008017012A3
公开(公告)日：2008-02-07
申请号：PCT/US2007/075037
申请日：2007-08-02
申请人： CITRIX SYSTEMS, INC. , SHETTY, Anil , SUGANTHI, Josephine , KAMATH, Sandeep
发明人： SHETTY, Anil , SUGANTHI, Josephine , KAMATH, Sandeep
IPC分类号： H04L29/08
摘要： Systems and methods are disclosed for providing a hierarchy of appliances to more efficiently access resources across a plurality of branch offices. A method comprises the steps of : establishing, by a first aggregator appliance (400A), connections with a first plurality of branch office appliances (200A,..., 200N); establishing, by a second aggregator appliance (400B), connections with a second plurality of branch office appliances (200A',..., 200N' ), the first plurality of branch office appliances not having information identifying the second plurality of branch office appliances; receiving, by the first aggregator appliance (400A), from a first branch office appliance (200A) a request from a client for access to a resource; identifying, by the first aggregator appliance (400A) via the second aggregator appliance (400B), a second branch office appliance (200A') from the second plurality of branch office appliances (200A',..., 200N' ) to service the request; transmitting, by the first aggregator appliance (400A), to the first branch office appliance (200A) information identifying the second branch office appliance (200A'); and establishing, by the first branch office appliance (200A), a connection with the second branch office appliance (200A'). Corresponding systems are also described.

7. 发明申请

WO2011079137A2 SYSTEMS AND METHODS FOR OBJECT RATE LIMITING IN A MULTI-CORE SYSTEM 审中-公开
标题翻译：用于多核系统中对象速率限制的系统和方法
公开(公告)号：WO2011079137A2
公开(公告)日：2011-06-30
申请号：PCT/US2010/061614
申请日：2010-12-21
申请人： CITRIX SYSTEMS, INC. , RAJA, Murali , KAMATH, Sandeep
发明人： RAJA, Murali , KAMATH, Sandeep
IPC分类号： H04L12/28 , H04L12/56
CPC分类号： H04L43/0894 , H04L67/1002 , H04L67/325 , H04L69/12
摘要： The present invention is directed towards systems and methods for managing a rate of request for an object transmitted between a server and one or more clients via a multi-core intermediary device. A first core of the intermediary device can receive a request for an object and assume ownership of the object. The first core can store the object in shared memory along with a rate-related counter for the object and generate a hash to the object and counter. Other cores can obtain the hash from the first core and access the object and counter in shared memory. Policy engines and throttlers in operation on each core can control the rate of access to the stored object.
摘要翻译：本发明涉及用于管理通过多核中间设备在服务器与一个或多个客户端之间传输的对象的请求速率的系统和方法。中间设备的第一个核心可以接收对象的请求，并承担对象的所有权。第一个核心可以将对象与对象的速率相关的计数器一起存储在共享存储器中，并生成对象和计数器的散列。其他内核可以从第一个内核获取哈希值，并在共享内存中访问对象和计数器。在每个核心上运行的策略引擎和节流器可以控制对存储对象的访问速率。

8. 发明申请

WO2011079198A3 SYSTEMS AND METHODS FOR MIXED MODE OF IPV6 AND IPV4 DNS OF GLOBAL SERVER LOAD BALANCING 审中-公开
公开(公告)号：WO2011079198A3
公开(公告)日：2011-06-30
申请号：PCT/US2010/061794
申请日：2010-12-22
申请人： CITRIX SYSTEMS, INC. , MUTNURU, Rishi , KAMATH, Sandeep
发明人： MUTNURU, Rishi , KAMATH, Sandeep
IPC分类号： H04L12/24 , G06F15/16
摘要： Systems and methods for providing one or more GSLB vServers to support both IPv4 and IPv6. The IPv6 support can be provided by permitting both A and AAAA domain name resolution. In other embodiments, the IPv6 support can be provided by modifying data structures to support IPv6 addresses.

9. 发明申请

WO2010068436A1 SYSTEMS AND METHODS FOR OBJECT RATE LIMITING 审中-公开
标题翻译：用于对象速率限制的系统和方法
公开(公告)号：WO2010068436A1
公开(公告)日：2010-06-17
申请号：PCT/US2009/065711
申请日：2009-11-24
申请人： CITRIX SYSTEMS, INC. , KAMATH, Sandeep , KHEMANI, Prakash
发明人： KAMATH, Sandeep , KHEMANI, Prakash
IPC分类号： H04L29/06 , H04L12/26 , H04L12/56
CPC分类号： H04L63/102 , H04L47/32 , H04L63/1408 , H04L63/1458
摘要： The present application is generally directed to systems and method for throttling a rate of requests between a client (102) and a server (106) using user specified inputs. A rate of requests for an object may be throttled by an intermediary (200) which receives requests transmitted between a client (102) and a server (106) and via the intermediary (200). The intermediary (200) may receive a request from a client (102) for an object of a server (106). The intermediary (200) may identify a policy (420) specifying a mode of throttling for the request, the policy (420) specifying a mode of throttling, a rate threshold and a period of time for the rate threshold. The rate throttler (405) of the intermediary (200) may determine whether the request exceeds the rate threshold for the period of time based on the mode of throttling of the policy (420) and allow or block the request responsive to the determination.
摘要翻译：本申请一般涉及使用用户指定的输入来限制客户端（102）和服务器（106）之间的请求速率的系统和方法。可以由接收在客户端（102）和服务器（106）之间经由中介（200）发送的请求的中介（200）来限制对象的请求速率。中间件（200）可以从客户机（102）接收针对服务器（106）的对象的请求。中介（200）可以识别指定用于请求的节流模式的策略（420），指定节流模式的策略（420），速率阈值和速率阈值的时间段。中介（200）的速率调节器（405）可以基于策略的限制模式（420）来确定该请求是否超过该时间段的速率阈值，并且响应于该确定允许或阻止该请求。

10. 发明申请

WO2014186225A1 SYSTEMS AND METHODS FOR DEPLOYING A SPOTTED VIRTUAL SERVER IN A CLUSTER SYSTEM 审中-公开
标题翻译：在集群系统中部署点播虚拟服务器的系统和方法
公开(公告)号：WO2014186225A1
公开(公告)日：2014-11-20
申请号：PCT/US2014/037495
申请日：2014-05-09
申请人： CITRIX SYSTEMS, INC.
发明人： KAMATH, Sandeep , ARUMUGAM, Mahesh , ITTA, Vishnu
IPC分类号： G06F9/50 , G06F9/48 , H04L29/08
CPC分类号： G06F9/5027 , G06F9/5077 , G06F9/5088 , H04L67/1008
摘要： The present invention is directed towards systems and methods deploying a virtual server on a subset of devices in a cluster of devices. A first device of a cluster of devices intermediary between at least one client and at least one server, may identify a first virtual server to establish on one or more devices of the cluster. The first device may associate, to the identified virtual server, a group comprising a subset of devices in the cluster of devices The cluster may establish the first virtual server on each device in the group responsive to associating the group to the first virtual server,. Each virtual server on each device of the group may be assigned a same internet protocol address.
摘要翻译：本发明涉及在设备集群中的设备子集上部署虚拟服务器的系统和方法。在至少一个客户端和至少一个服务器之间中介的设备集群的第一设备可以识别在集群的一个或多个设备上建立的第一虚拟服务器。第一设备可以将与包括设备集群中的设备子集的组相关联的群组可以响应于将该组与第一虚拟服务器相关联而在群组中的每个设备上建立第一虚拟服务器。组中每个设备上的每个虚拟服务器可以被分配相同的因特网协议地址。

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