文章首先介绍了组播会话管理的现状以及IP网络上最常用的会话管理协议族。
Firstly, the paper introduces the status quo of session management and its protocol stack which is commonly deployed on current IP network.
典型的例子包括记录关于请求和响应的数据、处理安全协议、管理会话属性，等等。
Typical examples include logging data about the request or response, processing security protocols, managing session attributes, and more.
我们还没有标准化用以集成监测和会话管理的跨浏览器的协议，因此现在的实现对于IE和Firefox都是非常特殊化的。
We have not yet standardized on a cross-browser protocol for the interaction monitoring and session management, so the implementations are very specific to Internet Explorer and Firefox.
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