Interim-Updates

[Irina]

Hello all,

We enabled Cisco NAS to send Interim-Updates to the radius server,  once an
hour.  Everything is great except for the following.

There are users that use a lot of bandwidth.  Seems, NAS wraps
Acct-Input-Octets and Acct-Output-Octets at 4 GB.  We have few users that
may have their bandwidth reset to 0 within hour.  When next Interim-Updates
is sent, we don't have a proper number.

Do I miss something in Radius configuration?

Or is something that has to be handled by NAS?

Any help is appreciated.  Thank you.
Irina