[Ns-bugs] [Bug 555] DCF immediate access bug

[code@nsnam.ece.gatech.edu]

http://www.nsnam.org/bugzilla/show_bug.cgi?id=555





--- Comment #11 from TimoB <timo.bingmann at student.kit.edu>  2009-06-24 06:08:15 EDT ---
> So, if I understand you well, you are saying that, in this case, we bogusly
> generate a collision, right ?

The bug is that there should be _no_ collision indicated.

Without the patch this situation signals a collision if backoff == 0 for the
second packet.

The bad condition is: IsBusy() and backoff == 0. Occurs because the first
packet obviously is in TX and if the second gets backoff == 0, a collision is
raised. And that is wrong.


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