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7.  Client-Server Model

CMost networking applications are written assuming one side is the client, and the other the server.

We can categorize servers into two classes: iterative or concurrent.

Iterative Server

1.

Wait for a client request arrive.

2.

Process the client request.

3.

Send the response back.

4.

Go back to 1.

Problem: What is, when step 2 takes a while?

Concurrent Server

1.

Wait for a client request arrive.

2.

Start a new server to handle this request. The new server handles the clients request. When complete, this new server terminates.

1.

Go back to 1.

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Last modified: 08/May/98 (11:53)