how is a session identified

[Wouter Boers]

Hello,

I have a question reguarding the session. What is this session based on? How
is a client browser uniquely identified by tomcat to map that session to its
own context.

I'm looking for the data that is required to identify the client browser and
the identification process. I would love to have some pointers to the specs
and sources implementing the specs.

Wouter