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1. 发明申请

US20060168334A1 Application layer message-based server failover management by a network element 有权
标题翻译：基于应用层消息的服务器故障转移管理由网元
公开(公告)号：US20060168334A1
公开(公告)日：2006-07-27
申请号：US11043857
申请日：2005-01-25
申请人： Sunil Potti , Alex Chan , Snehal Haridas , Hari Kathi , Pravin Singhal
发明人： Sunil Potti , Alex Chan , Snehal Haridas , Hari Kathi , Pravin Singhal
IPC分类号： G06F15/16 , G06F15/173
CPC分类号： H04L67/1008 , H04L67/02 , H04L67/1002 , H04L67/1017 , H04L67/1034 , H04L67/14 , H04L67/142 , H04L67/145 , H04L67/2814 , H04L69/40
摘要： A method is disclosed for application layer message-based network element management of server failures. According to one aspect, a network element such as a router intercepts session state information that is contained in a request from a client and locally stores the session state information. As a result, application servers to which the requests are directed do not need to store the session state information. If an application server fails, then the network element can use the session state information stored at the network element to continue the session with another application server, transparently to the client application that is involved in the session.
摘要翻译：公开了一种用于服务器故障的应用层基于消息的网络元件管理的方法。根据一方面，诸如路由器之类的网络元件拦截来自客户端的请求中包含的会话状态信息，并且本地存储会话状态信息。因此，请求所针对的应用服务器不需要存储会话状态信息。如果应用服务器发生故障，则网元可以使用网元上存储的会话状态信息，与会话中涉及的客户端应用程序透明地继续与其他应用服务器的会话。

2. 发明申请

US20060155862A1 Data traffic load balancing based on application layer messages 审中-公开
标题翻译：基于应用层消息的数据流量负载平衡
公开(公告)号：US20060155862A1
公开(公告)日：2006-07-13
申请号：US11031184
申请日：2005-01-06
申请人： Hari Kathi , Subramanian Srinivasan , Pravin Singhal
发明人： Hari Kathi , Subramanian Srinivasan , Pravin Singhal
IPC分类号： G06F15/16 , G06F15/173
CPC分类号： H04L45/583 , H04L45/38 , H04L67/1002 , H04L67/1008 , H04L67/1017 , H04L67/327
摘要： A method is disclosed for application layer message-based load balancing. According to one aspect, when a network element receives one or more data packets that collectively contain an application layer message, the network element determines a message classification to which the application layer message belongs. Using a load-balancing algorithm that is mapped to the message classification, the network element selects a server from among a plurality of servers, and sends the message toward that server. According to one “adaptive” load-balancing algorithm, the network element selects the server based on multiple servers' average historical response times and average outstanding request wait times. The network element continuously maintains these statistics for each server toward which the network element has sent requests. The network element tracks response times by recording how much time passes between the sending of a request to a server and the receiving of a corresponding response from that server.
摘要翻译：公开了一种基于应用层消息的负载均衡的方法。根据一个方面，当网络元件接收到一个或多个共同包含应用层消息的数据分组时，网络单元确定应用层消息所属的消息分类。使用映射到消息分类的负载平衡算法，网元从多个服务器中选择服务器，并向该服务器发送消息。根据一种“自适应”负载平衡算法，网元根据多个服务器的平均历史响应时间和平均未完成请求等待时间选择服务器。网元连续维护网元发送请求的每个服务器的这些统计信息。网络元件通过记录在发送请求到服务器和从该服务器接收相应的响应之间经过多少时间来跟踪响应时间。

3. 发明授权

US07698416B2 Application layer message-based server failover management by a network element 有权
标题翻译：基于应用层消息的服务器故障转移管理由网元
公开(公告)号：US07698416B2
公开(公告)日：2010-04-13
申请号：US11043857
申请日：2005-01-25
申请人： Sunil Potti , Alex Yiu-Man Chan , Snehal Haridas , Hari Kathi , Pravin Singhal
发明人： Sunil Potti , Alex Yiu-Man Chan , Snehal Haridas , Hari Kathi , Pravin Singhal
IPC分类号： G06F15/16
CPC分类号： H04L67/1008 , H04L67/02 , H04L67/1002 , H04L67/1017 , H04L67/1034 , H04L67/14 , H04L67/142 , H04L67/145 , H04L67/2814 , H04L69/40
摘要： A method is disclosed for application layer message-based network element management of server failures. According to one aspect, a network element such as a router intercepts session state information that is contained in a request from a client and locally stores the session state information. As a result, application servers to which the requests are directed do not need to store the session state information. If an application server fails, then the network element can use the session state information stored at the network element to continue the session with another application server, transparently to the client application that is involved in the session.
摘要翻译：公开了一种用于服务器故障的应用层基于消息的网络元件管理的方法。根据一方面，诸如路由器之类的网络元件拦截来自客户端的请求中包含的会话状态信息，并且本地存储会话状态信息。因此，请求所针对的应用服务器不需要存储会话状态信息。如果应用服务器发生故障，则网元可以使用网元上存储的会话状态信息，与会话中涉及的客户端应用程序透明地继续与其他应用服务器的会话。

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