Re: [Aironet] Enquiries of AP3500

[Jim V. <jv...@bi...>]

>      *******************************************************************
>      Testing link to 004096126bab with 100 unicast packets of size 1024
>      FAIR(13% Retries)    Time(ms)     Strength(%)        Retries(%)    
>                                        In    Out          In    Out     
>      Sent = 100      Avg: 25           3      26          21     5     
>      Lost to Tgt = 0 Max: 220          10     38          19     1     
>      Lost to Src = 0 Min: 22           1      4
>      *******************************************************************
> 
>      1. Signal Strength In/Out refers to what ? And the % is based on what
> value ?


"Signal Strength" is determined from the AP's point of view.
"In" refers to a signal being received by the AP from the client.
"Out" refers to a signal being received by the client from the AP.

In this case - the AP has seen signal strengths ranging from 1% to 10% with
an average of 3% from the client.

The client is reporting that is has seen a signal strength ranging from 4% to
38% with an average of 26% from the AP.

>      2. Does this test provide any info about noise, SNR ?

I don't believe so - but I'll check.

>      3. How to do a test for frame error rate ?

Not exactly sure what you want here...

>      4. How to interprete the 'Retries' ?

"In" - this corresponds with the amount of retries the client has transmitted.
The first number is the total amount of retries - and the second number is
the highest retry count for any single packet is 19. The client transmitted
a total of 21 retries.  (it may have either retried one packet 19 times and two more
packets 1 time each, or it retried one packet 19 times and one other packet 2 times)

"Out" - this corresponds with the amount of retries FROM the AP to the client.
In this case there are a total of 5 retries - with the maximum amount per packet
of 1.  So - 5 packets each had 1 retry.

The "13%" retry measurement on the first line is calculated by dividing the total
amount of retries (26 = 5 + 21) by the total amount of packets sent (200).

The reason we use 200 instead of 100 is EACH side sent a total of 100 packets.
100 linktest packets result in 100 round trips so each side transmits 100 packets.

>      5. 1 frame = ? packets.

1 frame = 1 packet


Jim