ACCESS GATEWAY
Quick Reference Guide 321
MaxGigawordsTotal
Number of total gigabytes, to support volume-based billing for total of upstream and
downstream traffic. Note that MaxGigawordsTotal is an integer value; use with
MaxBytesTotal if you need volume granularity of more than 4 gigabytes.
Idle Timeout
The WMI allows the setting of a default timeout. If the Radius server does not send an Idle-
Timeout in the Radius Access-Accept, the Access Gateway will use the default one to
disconnect subscribers. “0” means forever.
Timeout Detection
If a subscriber is sending traffic through the Access Gateway, the Access Gateway will
immediately detect a Session-Timeout. However in the case of an Idle-Timeout or an inactive
subscriber Session-Timeout, the Access Gateway detects it via a clean-up function that is
currently called every 2 minutes. Thus the current precision for sending the Acct-Stop is about
2 minutes.
Subscriber Session Duration
Acct-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 in
retransmissions.
Interim Accounting Updates
The Access Gateway parses the attribute Acct-Interim-Interval in an Access-Accept. If this
attribute is present the Access Gateway tries every [Acct-Interim-Interval] seconds to send a
Radius Accounting Interim message for the specific subscriber. If this attribute is not present
or equal to 0, no Interim message is sent.
The precision is 2 minutes. The Access Gateway will not send Interim messages more
frequently than every 2 minutes.
Called-Station-ID
This is the Media Access Control (MAC) address of the Access Gateway.
Calling-Station-ID
This is the Media Access Control (MAC) address of the client's computer.
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