It would take careful network planning to keep stateful sessions or streams across APs.
Client IP info and routing are likely to change from AP to AP, right?


I was reading over "mobility support" in 802.11b the other day (the o'reilly book), but it was a little unclear about what is already implemented in the protocol and what was planned for the future. (either it was unclear - or I was confused - or both)


-rob



At 12:12 AM 9/10/2003 -0700, you wrote:


a question of handoff/handshake speeds...

what if you had two APs separated by a mile of road...
The two APs have yagi antennas pointed at each other,
They have a clear line of sight,
they are running on different channels.
No encryption.  No negative radio interference.

A person in a car with appropriate wifi gear is listening to a streaming
internet radio station at point A.
He leaves point A for point B at 65 mph.
As his card transitions from one AP to the next, will he experience a
distracting interruption in his internet radio stream?

I am hoping that most wifi cards have a mode where they will automatically
connect to the AP with the strongest signal.  I just wonder how fast a
handoff can be made.

All thoughts on the issue are welcome :-)

thanks
Chris White



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