Nomadix AG 5000, User Manual, Page: 238 / 286

AG 5000
234 Quick Reference Guide
Selected Detailed Descriptions
Acct-Session-ID
The Acct-Session-ID is created when the RADIUS authentication request is built. It is
transmitted in both the Access-Request and the Accounting-Request.
Session Timeout
There is currently no default session timeout that you can set in the AG 5000 Web
Management Interface (WMI). If the Radius server does not send a Session-Timeout,
the AG 5000 will set the subscriber expiration time to 0, which means access forever.
Log-Off-URL
Allows for the placement of a log off URL (for example, 1.1.1.1) on an external portal
page.
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 AG 5000 will use the default one to
disconnect subscribers. “0” means forever.
Timeout Detection
If a subscriber is sending traffic through the AG 5000, the AG 5000 will immediately
detect a Session-Timeout. However in the case of an Idle-Timeout or an inactive
subscriber Session-Timeout, the AG 5000 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 AG 5000 parses the attribute Acct-Interim-Interval in an Access-Accept. If this
attribute is present the AG 5000 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 AG 5000 will not send Interim messages more
frequently than every 2 minutes.
Called-Station-ID
This is the Media Access Control (MAC) address of the AG 5000.
ag5000_userguide.book Page 234 Friday, March 4, 2005 3:05 PM