Hi, Dear all, 

I am working on a wireless network using Athores 9531 chipset. 

I found a strange thing, the dot11xxxCount increase dramatically. 
I looked for the definition of these counter, as following. 
struct ieee80211_low_level_stats {      
    unsigned int dot11ACKFailureCount;  
    unsigned int dot11RTSFailureCount;  
    unsigned int dot11FCSErrorCount;    
    unsigned int dot11RTSSuccessCount; 
};

I guess the meaning of these counters, but I am not sure. 
What does it mean when ACK failure and FCS error happened,
even only 2 nodes point-to-point transmision?

It's normal thing for 802.11n? 

Thanks for any comments in advance. 

Yours
Ligang

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