On Thursday, June 5, 2003, at 03:18 PM, David Young wrote:
On Thu, Jun 05, 2003 at 12:42:13AM -0400, S Woodside wrote:In 802.11, a transmitter has to receive acknowledgement of the last packet it sent in about 10 microseconds, or else it will retransmit it. An 802.11 radio is typically set to retransmit about 5 times before it gives up.
What does this do to the packets that really do need retransmission?
Packets needing retransmission are lost. You will still see a net throughput gain after zeroing the retry count if, previously, your radio made one or more needless retransmissions every time.
I guess then that TCP will take care of the lost packets. Thanks for the info.
simon
My understanding was that the radios (cisco, etc) that can handle this situation do it by lengthening the waiting period, instead.
They do.
Dave
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