total data transfer size

[wlan at mac.com]

> It might signify that you're using AcctOutputOctets only, instead  
> of combining them with AcctOutputGigawords.
>

Indeed. Integers in RADIUS are unsigned 32bit. This leaves room for  
integers between 0 and 4,294,967,295. I believe there was also an  
issue in earlier chillispot versions where internally the octets were  
counted on signed integers, reducing the max (positive) value by  
half. CoovaChilli now uses an unsigned 64bit value of which the upper  
32bits are put in giga attributes (if needed).

> Which brings me to another question: Why on earth does Coova  
> reverse InputOctets and OutputOctets when compared with Chillispot?
>

Regrettable, yes. But, not without reason. It's just at the time the  
motivation was  compatibility with commercial hotspot gear we were  
using. You can always go back with the option 'swapoctets'. See:

http://coova.org/wiki/index.php/CoovaChilli/RADIUS

David
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