On 17.02.2014 14:20, Felix Fietkau wrote:
On 2014-02-17 10:46, kirill wrote:
Most of the stations us 2.4 GHz frequency band now. So the environment
is rather noisy. It leads to a packet loss rate increase.
I've changed my Fragmentation Threshold to 400 and RTS/CTS Threshold to
40. After a weeks of testing I have 0% packet loss. This values probably
are not optimal, but it solves the problem.
Just out of curiosity: What hardware, what OpenWrt version, and what
kind of client devices (802.11n capable or not) are you using?
Router is TP_LINK TL_WR1043ND running ATTITUDE ADJUSTMENT (12.09, r36088)
Laptop has Intel 4965agn card
I think that most users will benefit from changing default settings.
I strongly disagree. Just one data point of an environment with
significant packet loss is no reason to strongly reduce throughput in
the default settings for everybody else.
I did some testing:
Copy ~2GB file from NFS storage (ordinary PC connected via gigabit Ethernet)
With new values: 9.1 MB/s
Old values (both reset 2400 > Ethernet MTU): 9.1 MB/s
And I see no throughput reduce. May be my test case is wrong. It would
be nice to see yours.
BTW, How many stations around you use 2.4 GHz frequency?
My point is:
1. Most 2.4 Ghz band users are in noisy environment
2. Packet loss slows down many applications (youtube is probably the
most common one) significantly
3. I have a solution that works for me. May be it will help others. May
be there is a better one
- Felix
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