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280 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 HSG Web
Management Interface (WMI). If the Radius server does not send a Session-Timeout,
the HSG 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 HSG will use the default one to
disconnect subscribers. “0” means forever.
Timeout Detection
If a subscriber is sending traffic through the HSG, the HSG will immediately detect a
Session-Timeout. However in the case of an Idle-Timeout or an inactive subscriber
Session-Timeout, the HSG 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.
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