A CCESS GATEWAYQuick Reference Guide 271Subscriber Session DurationAcct-Session-Time is calculated the following way (for each transmitted/retransmitted Acct-Stop):Acct-Session-Time = time of last sent packet - subscriber login time.Another attribute, Acct-Delay-Time, will take into consideration the time spent inretransmissions.Interim Accounting UpdatesThe Access Gateway parses the attribute Acct-Interim-Interval in an Access-Accept. If thisattribute is present the Access Gateway tries every [Acct-Interim-Interval] seconds to send aRadius Accounting Interim message for the specific subscriber. If this attribute is not presentor equal to 0, no Interim message is sent.The precision is 2 minutes. The Access Gateway will not send Interim messages morefrequently than every 2 minutes.Called-Station-IDThis is the Media Access Control (MAC) address of the Access Gateway.Calling-Station-IDThis is the Media Access Control (MAC) address of the client's computer.New Attributes in Acct-RequestThe Access Gateway has to send the following attributes in an Accounting-Stop: Acct-Output-Packets: number of packets sent by subscriber. Acct-Input-Packets: number of packets received by subscriber.Upon a reboot, these 2 attributes are saved in currfile.dat the same way as for Acct-Input-Octets and Acct-Input-Octets.Nomadix Vendor Specific AttributesNomadix-Bw-UpThis attribute value (in Kbps) restricts the speed at which uploads are performed.If you plan to implement RADIUS, go to “Contact Information” on page 297 forNomadix Technical Support.