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Question of the Week

1 posts by 1 authors in: Forums > CWDP & CWAP - Enterprise Wi-Fi Design & Analysis
Last Post: May 15, 2006:

By Devinator May 15, 2006

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[/quote]
If the RTS/CTS threshold on the transmitting STA is 350B and the STA is trying to send an MSDU of 1050B, but the fragmentation threshold is set to 400B, what will happen?[/quote]

This is a freaky situation you've described here. :-) I didn't test it out in the lab to be sure, but I'd guess that the RTS/CTS threshold would only apply to the frame exchange ONCE, not per fragment.

RTS-SIFS-CTS-SIFS-FRAG1-SIFS-ACK-SIFS-FRAG2-SIFS-ACK-SIFS-FRAG3-SIFS-ACK

A good way to prove this would be with the NetGear WAG511 card which has settings for fragmentation and RTS/CTS thresholds. Of course you're not going to see the SIFS in the protocol analyzer.

Devinator

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