[squid-users] retrieve amount of traffic by username

[FredB]

My answer was only for this point 

> Would be necessary for me to do so for including some traffic based limitations for each user 

I don't known radius with Squid but I guess you have an acl like this
acl radius-auth proxy_auth REQUIRED ?? (or something close)

In this case I guess you can easily mixed this acl with delay_pool http://wiki.squid-cache.org/Features/DelayPools

Here, I have bandwidth limitation for each account also based on time (not limitation at night)