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    • 6. 发明授权
    • Dynamic, seamless switching of a network session from one connection route to another
    • 网络会话从一个连接路由到另一个连接路由的动态,无缝切换
    • US06766373B1
    • 2004-07-20
    • US09584068
    • 2000-05-31
    • Bruce A. BeadleMichael Wayne BrownRandolph Michael ForlenzaDouglas Scott RothertMiguel Sang
    • Bruce A. BeadleMichael Wayne BrownRandolph Michael ForlenzaDouglas Scott RothertMiguel Sang
    • G06F1300
    • H04L45/00H04L69/40
    • A system for providing continuous connection between a client and a network during a session. The system comprises of a connection utility, which monitors a network session for an occurrence of a pre-defined event and/or condition. The system is particularly advantageous in scenarios where a session's connection is lost and the session has to be reconnected to the network. The system also finds applicability with several other types of events/conditions, including a connection break, a slow or congested connection or a change in the type of data being transmitted. When any one of the pre-defined events/conditions occur, the session is automatically routed from the present connection route to another connection route, and is completed on the other connection route. In order to complete the re-routing of the sessions, session information is cached on the client and the server. The session data is tagged with the original session ID. On the server, a special Client Key is stored for later retrieval, and on the client a special Server Key is stored. During the reconnect, the server uses its previously stored session data associated with the client key and previous session ID to regain a new session connection. The client uses its previously stored session data to regain its side of the connection and to pass the proper request over the wire to the server. This special “handshake” occurs at session reconnect time and allows the special session re-connection to occur. The re-routing of the session is completed with no noticeable loss in connection or session information. Thus, a substantially seamless switching of the session from the first connection route to the second connection route is implemented.
    • 一种用于在会话期间在客户端和网络之间提供连续连接的系统。 该系统包括连接实用程序,其监视网络会话以发生预定义的事件和/或条件。 该系统在会话的连接丢失并且会话必须重新连接到网络的情况下特别有利。 该系统还发现适用于其他几种类型的事件/条件,包括连接中断,慢速或拥塞连接或正在发送的数据类型的变化。 当发生任何一个预先定义的事件/条件时,会话将从当前连接路由自动路由到另一个连接路由,并在另一个连接路由上完成。 为了完成会话的重新路由,会话信息被缓存在客户端和服务器上。 会话数据被标记为原始会话ID。 在服务器上,存储一个特殊的客户端密钥供以后检索,客户端上存储一个特殊的服务器密钥。 在重新连接期间,服务器使用其先前存储的与客户机密钥和先前会话ID相关联的会话数据来重新获得新的会话连接。 客户端使用其先前存储的会话数据来重新获得连接的一面,并通过线将适当的请求传递到服务器。 这种特殊的“握手”发生在会话重新连接时,并允许特殊会话重新连接发生。 完成会话的重新路由,连接或会话信息没有明显的丢失。 因此,实现了从第一连接路由到第二连接路由的会话的基本无缝切换。
    • 10. 发明授权
    • Extending functionality of network I/O APIS by using call-back mechanisms
    • 通过使用回调机制来扩展网络I / O APIS的功能
    • US06718362B1
    • 2004-04-06
    • US09584067
    • 2000-05-31
    • Bruce A. BeadleMichael Wayne BrownRandolph Michael ForlenzaDouglas Scott RothertMiguel Sang
    • Bruce A. BeadleMichael Wayne BrownRandolph Michael ForlenzaDouglas Scott RothertMiguel Sang
    • G06F1300
    • H04L63/1408G06F9/4486G06F2209/542H04L63/166
    • A method, system, and program that efficiently augments and enhances the functions of a network library with new functional elements. The method, system and program provide an extension utility, which contains a number of extended library services, such as security, Reliability, Availability, Serviceability, RAS, load balancing, snooping, and logging. The extended library services also include a general network monitoring function, by which a network connection is monitored, and the conditions reported back to the client. Also provided is a control utility, which places hooks related to one or more extended library services in the library processing code of the network protocol stack. The control utility-places the hooks within a call sequence based on a priority determination. Thus, hooks are placed within the call response sequence relative to the time the standard library services are to be performed. During response to a network call or other network process, the hooks operate to call back to and implement the particular extended library service(s). The corresponding extended library service is thus effectively added to the standard library services.
    • 一种方法,系统和程序,可以有效地增强和增强具有新功能元素的网络库的功能。 该方法,系统和程序提供了一个扩展实用程序,其中包含许多扩展库服务,如安全性,可靠性,可用性,可维护性,RAS,负载平衡,侦听和日志记录。 扩展库服务还包括通用网络监控功能,通过该功能监视网络连接,并将条件报告回客户端。 还提供了控制实用程序,它将与一个或多个扩展库服务相关联的钩子放置在网络协议栈的库处理代码中。 控制实用程序 - 根据优先级确定将挂钩置于呼叫序列中。 因此,挂钩相对于执行标准库服务的时间被放置在呼叫响应序列内。 在响应于网络呼叫或其他网络进程时,钩子操作以回呼并实现特定的扩展库服务。 因此,相应的扩展库服务被有效地添加到标准库服务中。