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1. 发明申请

WO2012097015A2 VIRTUAL APPLICATION DELIVERY CHASSIS SYSTEM 审中-公开
标题翻译：虚拟应用交付条件系统
公开(公告)号：WO2012097015A2
公开(公告)日：2012-07-19
申请号：PCT/US2012/020847
申请日：2012-01-10
申请人： A10 NETWORKS INC. , RAJKUMAR, Jalan , OSHIBA, Dennis
发明人： RAJKUMAR, Jalan , OSHIBA, Dennis
IPC分类号： G06F9/06 , G06F9/44
CPC分类号： H04L67/1008 , G06F9/45558 , G06F9/5061 , G06F11/1469 , G06F11/2025 , G06F11/3466 , G06F2009/45595 , H04L41/0668 , H04L49/70 , H04L67/101 , H04L67/1031 , H04L67/1034 , H04L67/1095 , H04L67/322 , H04L67/325
摘要： A method for electing a master blade in a virtual application distribution chassis (VADC), includes: sending by each blade a VADC message to each of the other blades; determining by each blade that the VADC message was not received from the master blade within a predetermined period of time; in response, sending a master claim message including a blade priority by each blade to the other blades; determining by each blade whether any of the blade priorities obtained from the received master claim messages is higher than the blade priority of the receiving blade; in response to determining that none of the blade priorities obtained is higher, setting a status of a given receiving blade to a new master blade; and sending by the given receiving blade a second VADC message to the other blades indicating the status of the new master blade of the given receiving blade.
摘要翻译：一种用于在虚拟应用分发机架（VADC）中选择主刀片的方法，包括：由每个刀片发送VADC消息给每个其他刀片; 在预定时间段内由每个刀片确定VADC消息未被从主刀片接收; 作为响应，将包括由每个刀片的刀片优先级的主要声明消息发送到其他刀片; 由每个刀片确定从所接收的主机声明消息获得的任何刀片优先级是否高于接收刀片的刀片优先级; 响应于确定没有获得的叶片优先级更高，将给定接收叶片的状态设置为新的主叶片; 并且由给定接收刀片发送第二VADC消息给另一个刀片，指示给定接收刀片的新主刀片的状态。

2. 发明申请

WO2012075237A3 SYSTEM AND METHOD TO DISTRIBUTE APPLICATION TRAFFIC TO SERVERS BASED ON DYNAMIC SERVICE RESPONSE TIME 审中-公开
公开(公告)号：WO2012075237A3
公开(公告)日：2012-06-07
申请号：PCT/US2011/062811
申请日：2011-12-01
申请人： A10 NETWORKS INC. , RAJKUMAR, Jalan , SZETO, Ronald Wei Lun , XU, Feilong
发明人： RAJKUMAR, Jalan , SZETO, Ronald Wei Lun , XU, Feilong
IPC分类号： H04L29/06 , G06F15/16
摘要： A service gateway processes a service request received from a host by: relaying the service request from the service gateway to a server over a service session between the service gateway and the server; determining a service request time for the service session; receiving by the service gateway a service response from the server; determining by the service gateway a service response time; calculating by the service gateway a service processing time for the service request from the service request time and the service response time; comparing the service processing time with an expected service processing time; and updating a server busy indicator for the server in response to the comparing. If the service processing time exceeds the expected service processing time, the server busy indicator is updated to indicate that the server is busy. Otherwise, the server busy indicator is updated to indicate that the server is not busy.

3. 发明申请

WO2012075237A2 SYSTEM AND METHOD TO DISTRIBUTE APPLICATION TRAFFIC TO SERVERS BASED ON DYNAMIC SERVICE RESPONSE TIME 审中-公开
标题翻译：基于动态服务响应时间分配服务器的应用交通系统和方法
公开(公告)号：WO2012075237A2
公开(公告)日：2012-06-07
申请号：PCT/US2011062811
申请日：2011-12-01
申请人： A10 NETWORKS INC , RAJKUMAR JALAN , SZETO RONALD WEI LUN , XU FEILONG
发明人： RAJKUMAR JALAN , SZETO RONALD WEI LUN , XU FEILONG
IPC分类号： H04L29/06 , G06F15/16
CPC分类号： H04L67/1008 , G06F9/505 , H04L41/082 , H04L41/5038 , H04L41/5096 , H04L43/0817 , H04L43/16 , H04L47/2475 , H04L67/14 , H04L67/28 , H04L67/322
摘要： A service gateway processes a service request received from a host by: relaying the service request from the service gateway to a server over a service session between the service gateway and the server; determining a service request time for the service session; receiving by the service gateway a service response from the server; determining by the service gateway a service response time; calculating by the service gateway a service processing time for the service request from the service request time and the service response time; comparing the service processing time with an expected service processing time; and updating a server busy indicator for the server in response to the comparing. If the service processing time exceeds the expected service processing time, the server busy indicator is updated to indicate that the server is busy. Otherwise, the server busy indicator is updated to indicate that the server is not busy.
摘要翻译：服务网关通过以下方式处理从主机接收的服务请求：通过服务网关和服务器之间的服务会话将服务请求从服务网关中继到服务器; 确定所述服务会话的服务请求时间; 由服务网关接收来自服务器的服务响应; 由服务网关确定服务响应时间; 由服务网关根据服务请求时间和服务响应时间计算服务请求的服务处理时间; 将服务处理时间与期望的服务处理时间进行比较; 以及响应于比较而更新服务器的服务器繁忙指示符。如果服务处理时间超过预期的服务处理时间，则更新服务器忙指示符以指示服务器正忙。否则，将更新服务器忙指示符以指示服务器不忙。

4. 发明申请

WO2012097015A3 VIRTUAL APPLICATION DELIVERY CHASSIS SYSTEM 审中-公开
标题翻译：虚拟应用交付机箱系统
公开(公告)号：WO2012097015A3
公开(公告)日：2012-10-04
申请号：PCT/US2012020847
申请日：2012-01-10
申请人： A10 NETWORKS INC , RAJKUMAR JALAN , OSHIBA DENNIS
发明人： RAJKUMAR JALAN , OSHIBA DENNIS
IPC分类号： G06F9/06 , G06F9/44
CPC分类号： H04L67/1008 , G06F9/45558 , G06F9/5061 , G06F11/1469 , G06F11/2025 , G06F11/3466 , G06F2009/45595 , H04L41/0668 , H04L49/70 , H04L67/101 , H04L67/1031 , H04L67/1034 , H04L67/1095 , H04L67/322 , H04L67/325
摘要： A method for electing a master blade in a virtual application distribution chassis (VADC), includes: sending by each blade a VADC message to each of the other blades; determining by each blade that the VADC message was not received from the master blade within a predetermined period of time; in response, sending a master claim message including a blade priority by each blade to the other blades; determining by each blade whether any of the blade priorities obtained from the received master claim messages is higher than the blade priority of the receiving blade; in response to determining that none of the blade priorities obtained is higher, setting a status of a given receiving blade to a new master blade; and sending by the given receiving blade a second VADC message to the other blades indicating the status of the new master blade of the given receiving blade.
摘要翻译：一种用于选择虚拟应用分发机箱（VADC）中的主刀片的方法，包括：由每个刀片向每个其他刀片发送VADC消息; 由每个刀片确定在预定时间段内未从主刀片接收到VADC消息; 作为响应，将包括每个刀片的刀片优先级的主要索赔消息发送到其他刀片; 由每个刀片确定从接收到的主权利要求消息中获得的任何刀片优先级是否高于接收刀片的刀片优先级; 响应于确定没有获得的刀片优先级更高，将给定接收刀片的状态设置为新的主刀片; 以及由给定的接收刀片发送第二VADC消息到其他刀片，以指示给定接收刀片的新的主刀片的状态。

5. 发明授权

US09154577B2 Sychronization of configuration file of virtual application distribution chassis 有权
标题翻译：虚拟应用分发机箱配置文件的同步
公开(公告)号：US09154577B2
公开(公告)日：2015-10-06
申请号：US13154399
申请日：2011-06-06
申请人： Rajkumar Jalan , Dennis Oshiba
发明人： Rajkumar Jalan , Dennis Oshiba
IPC分类号： G06F15/177 , H04L29/08 , H04L29/06
CPC分类号： H04L41/084 , H04L29/06 , H04L41/0806 , H04L41/0816 , H04L67/34
摘要： Synchronization of configuration files of a virtual application distribution chassis, includes: processing a configuration command received by a master blade; updating a first configuration file with the configuration command and an updated tag by the master blade; sending a configuration message by the master blade to the slave blades informing of the updated configuration file, the configuration message comprising the updated tag; in response to receiving the configuration message by a given slave blade of the one or more slave blades, comparing the updated tag in the configuration message with a tag in a second configuration file stored at the given slave blade; and in response to determining that the updated tag in the configuration message is more recent than the tag in the second configuration file stored at the given slave blade, sending a request for the updated configuration file to the master blade by the given slave blade.
摘要翻译：虚拟应用分发机箱的配置文件同步包括：处理主刀片接收的配置命令; 使用配置命令更新第一配置文件和由主刀片更新的标签; 将所述主刀片的配置消息发送到所述从属刀片，通知所述更新的配置文件，所述配置消息包括所述更新的标签; 响应于由一个或多个从属刀片的给定从属刀片接收配置消息，将配置消息中的更新标签与存储在给定从属刀片上的第二配置文件中的标签进行比较; 并且响应于确定配置消息中的更新的标签比存储在给定从属刀片中的第二配置文件中的标签更新，由给定从属刀片向主刀片发送对更新的配置文件的请求。

6. 发明授权

US08572228B2 Connection rate limiting for server load balancing and transparent cache switching 有权
标题翻译：服务器负载平衡和透明缓存切换的连接速率限制
公开(公告)号：US08572228B2
公开(公告)日：2013-10-29
申请号：US12785423
申请日：2010-05-21
申请人： Ronald W. Szeto , David Chun Ying Cheung , Rajkumar Jalan
发明人： Ronald W. Szeto , David Chun Ying Cheung , Rajkumar Jalan
IPC分类号： G06F15/173
CPC分类号： H04L67/1002 , H04L63/0218 , H04L63/1458 , H04L67/1031 , H04L67/1036 , H04L67/2842
摘要： Each service in a computer network may have a connection rate limit. The number of new connections per time period may be limited by using a series of rules. In a specific embodiment of the present invention, a counter is increased each time a server is selected to handle a connection request. For each service, connections coming in are tracked. Therefore, the source of connection-request packets need not be examined. Only the destination service is important. This saves significant time in the examination of the incoming requests. Each service may have its own set of rules to best handle the new traffic for its particular situation. For server load balancing, a reset may be sent to the source address of the new connection request. For transparent cache switching, the connection request may be forwarded to the Internet.
摘要翻译：计算机网络中的每个服务可能具有连接速率限制。每个时间段的新连接数可以通过使用一系列规则来限制。在本发明的具体实施例中，每当选择服务器来处理连接请求时，增加计数器。对于每个服务，跟踪进入的连接。因此，不需要检查连接请求数据包的来源。只有目的地服务很重要。这样可以节省大量时间来检查传入的请求。每个服务可能有自己的一套规则，以便为特定情况最好地处理新的流量。对于服务器负载平衡，可以将重置发送到新连接请求的源地址。对于透明缓存切换，连接请求可以被转发到因特网。

7. 发明申请

US20130166762A1 Methods to Manage Services over a Service Gateway 有权
公开(公告)号：US20130166762A1
公开(公告)日：2013-06-27
申请号：US13337030
申请日：2011-12-23
申请人： Rajkumar JALAN , Feilong XU , Rishi SAMPAT
发明人： Rajkumar JALAN , Feilong XU , Rishi SAMPAT
IPC分类号： G06F15/16
CPC分类号： H04L69/22 , G06F9/505 , H04L43/0817 , H04L61/00 , H04L61/103 , H04L61/1541 , H04L61/2007 , H04L61/255 , H04L67/00 , H04L67/02 , H04L67/1008 , H04L67/28 , H04L67/2814
摘要： In activating a service, a service gateway retrieves a service table entry using a service or server address of the service entry, where the service table entry has an association with another service entry. An association to the service entry is added and a marker value is set to indicate associations with two service entries. After a time duration, the association with the other service entry is removed, and the marker value is changed accordingly. In deactivating a service entry, the service gateway calculates a hash value for the service or server address of the service entry. After matching the hash value to a hash value of another service entry, an association with the other service entry is added. A marker value is set to indicate associations with two service entries. After a time duration, the association with the service entry is removed, and the marker value is changed accordingly.

8. 发明申请

US20120120952A1 METHOD FOR PROVIDING SCALABLE MULTICAST SERVICE IN A VIRTUAL PRIVATE LAN SERVICE 有权
标题翻译：在虚拟私人网络服务中提供可扩展多播服务的方法
公开(公告)号：US20120120952A1
公开(公告)日：2012-05-17
申请号：US13278599
申请日：2011-10-21
申请人： Rajkumar Jalan , Louis Yun , Ivy Pei-Shan Hsu
发明人： Rajkumar Jalan , Louis Yun , Ivy Pei-Shan Hsu
IPC分类号： H04L12/56
CPC分类号： H04L12/4633 , H04L12/185 , H04L12/1886 , H04L12/4641 , H04L49/354 , H04L63/0272
摘要： Multicast capability in a virtual private LAN service (VPLS) is provided in a provider IP/MPLS infrastructure without headend replications by encapsulating a customer data packet to use an established multicast protocol, such as IP multicast. In one example, the customer data packet is encapsulated by an IP header having an IP multicast group address and an Ethernet header. In one implementation, a DNS type mechanism is provided to distribute the IP multicast addresses for VPLS use. Such IP multicast group address can be set aside from an administratively scoped address range. An efficient IP routing algorithm running on the provider's network provides an efficient distribution tree for routing IP-encapsulated customer packet for the VPLS.
摘要翻译：虚拟专用LAN服务（VPLS）中的组播能力通过封装客户数据包来使用已建立的多播协议（如IP多播），在提供商IP / MPLS架构中提供无前端复制功能。在一个示例中，客户数据分组由具有IP多播组地址和以太网报头的IP报头来封装。在一个实现中，提供DNS类型机制来分发用于VPLS使用的IP多播地址。这样的IP组播组地址可以从管理范围的地址范围来设置。在提供商网络上运行的高效IP路由算法为VPLS路由IP封装的客户数据包提供了一个有效的分配树。

9. 发明申请

US20120008635A1 SYSTEM AND METHOD FOR PROVIDING NETWORK ROUTE REDUNDANCY ACROSS LAYER 2 DEVICES 有权
标题翻译：用于提供网络路由冗余的系统和方法通过层2设备
公开(公告)号：US20120008635A1
公开(公告)日：2012-01-12
申请号：US13185885
申请日：2011-07-19
申请人： Andrew Tai-Chin Kuo , Ivy Pei-Shan Hsu , Jordi Moncada-Elias , Rajkumar Jalan , Gurudeep Kamat
发明人： Andrew Tai-Chin Kuo , Ivy Pei-Shan Hsu , Jordi Moncada-Elias , Rajkumar Jalan , Gurudeep Kamat
IPC分类号： H04L12/56
CPC分类号： H04L49/552 , H04L43/0876 , H04L45/00 , H04L45/18 , H04L45/32 , H04L45/48 , H04L45/586 , H04L69/40
摘要： Systems and methods are described for providing network route redundancy through Layer 2 devices, such as a loop free Layer 2 network having a plurality of switching devices. A virtual switch is coupled to the loop free Layer 2 network, the virtual switch having two or more switches configured to transition between master and backup modes to provide redundant support for the loop free Layer 2 network, the switches communicating their status through use of a plurality of redundancy control packets. The system also includes means for allowing the redundancy control packets to be flooded through the Layer 2 network. The means may include time-to-live data attached to the redundancy control packet which is decremented only when the packets are transferred through devices which are configured to recognize the protocol used in redundancy control packets.
摘要翻译：描述了通过第2层设备提供网络路由冗余的系统和方法，例如具有多个交换设备的无环路的二层网络。虚拟交换机耦合到无环路的二层网络，虚拟交换机具有两个或多个交换机，配置为在主模式和备用模式之间转换，为无环路的二层网络提供冗余支持，交换机通过使用多个冗余控制分组。该系统还包括允许冗余控制分组通过第2层网络淹没的装置。该装置可以包括附加到冗余控制分组的生存时间数据，只有当分组通过被配置为识别在冗余控制分组中使用的协议的设备传送时，该冗余控制分组才递减。

10. 发明授权

US08024441B2 Global server load balancing 有权
标题翻译：全局服务器负载均衡
公开(公告)号：US08024441B2
公开(公告)日：2011-09-20
申请号：US11707697
申请日：2007-02-16
申请人： Sunanda Lakshmi Kommula , Ivy Pei-Shan Hsu , Rajkumar Jalan , David Chun Ying Cheung
发明人： Sunanda Lakshmi Kommula , Ivy Pei-Shan Hsu , Rajkumar Jalan , David Chun Ying Cheung
IPC分类号： G06F15/173
CPC分类号： H04L67/1002 , H04L67/1008 , H04L67/1012 , H04L67/1021
摘要： A global server load-balancing (GSLB) switch serves as a proxy to an authoritative DNS and communicates with numerous site switches that are coupled to host servers serving specific applications. The GSLB switch receives from site switches operational information regarding host servers within the site switches neighborhood. When a client program requests a resolution of a host name, the GSLB switch, acting as a proxy of an authoritative DNS, returns one or more ordered IP addresses for the host name. The IP addresses are ordered using metrics that include the information collected from the site switches. In one instance, the GSLB switch places the address that is deemed “best” at the top of the list.
摘要翻译：全局服务器负载平衡（GSLB）交换机用作授权DNS的代理，并与多个站点交换机进行通信，这些站点交换机与服务于特定应用程序的主机服务器相连。 GSLB交换机从站点交换机接收关于站点交换机附近的主机服务器的操作信息。当客户端程序请求解析主机名时，作为权威DNS的代理的GSLB交换机返回主机名的一个或多个有序IP地址。 IP地址使用包含从站点交换机收集的信息的度量来排序。在一个实例中，GSLB开关将地址视为“最佳”位于列表的顶部。

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