When the network access server (NAS) sends attribute 77 in accounting "start" and "stop" records, you can measure;across the platform;the connect rates. That is, attribute 77 allows you to record "transmit" speed (the speed at which the NAS modem sends information) and "receive" speed (the speed at which the NAS receives information). These modem speeds for user sessions allow you to determine whether user modem connections renegotiate to lower speeds shortly into a session. If the transmit and receive speeds are different from each other, attribute 77 will report both speeds, which allows you to establish the modem connection speeds each customer gets from his or her session.
