Browser to IIS Request

Question

Friends,

I have a question here, normally as a dotnet developer we know how the process flows inside the web server(IIS) with the complete asp.net page life cycle with different events with handlers, modules etc.

My question is from the browser when we enter a url and hit the enter button what are the process happens? How the url is used to identify the server...

Can any one suggest some good flow on this or any nice article to get a complete flow???