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acct-stop w/o acct-start



Hello,

 

In various networks, acct-start is used to signal the successful start of the service.

So, even though the Access-Accept was sent by the AAA server, it does not mark the session as “started” until it also receives an acct-start from the NAS. Acct-start is sent by the NAS once the host completes the network entry procedure, including IP address configuration.

 

And if the network entry does not complete despite the NAS receiving an access-accept (e.g., host abandoning the procedure, or one of the steps failing), then the acct-start is not sent to the AAA server. AAA server can let the session timeout. But an explicit message from the NAS indicating failure would yield a better resource management on the AAA server side.

 

For such a case, is it OK to send an acct-stop without sending an acct-start after the access-accept?

Or, is there another/better way of using a RADIUS message for this purpose?

 

Thanks.

 

Alper