authorization of sub-sessions

["Nelson, David" <dnelson@enterasys.com>]

Posted on behalf of Kuntal Chowdhury:

>Hi all,
>
>During a recent 3GPP2-IETF co-ordination call the issue of 
>authorization of multiple auxiliary sub-sessions under a PPP 
>session came up. In 3GPP2 these sub sessions (termed auxiliary 
>service instance) are initiated to support applications that 
>need special treatments e.g. better than best effort QoS, 
>header compression etc. Today, these sub sessions are not 
>authorized using RADIUS messages (AR/AA). However, there are 
>special accounting needs for these sub sessions i.e. separate 
>accounting buckets are maintained for each of these sub 
>sessions in the NAS.
>
>The intent of posting this message here is to initiate some 
>discussion on sub sessions and possible RADIUS interaction. 
>
>What would be the proper way to deal with these sub sessions? 
>Do we need to define RADIUS procedures to handle auth and 
>accounting of these sub sessions? 
>Is there a possible link between the sub sessions and the need 
>for sub types? Does the current (agreed) charter for RADEXT 
>cover such a thing?
>
>-Kuntal
>

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