cw wong wrote: > I understand that the scheduled TXOP is requested by an QSTA and granted > by the AP SME. > In this situation, if the AP SME is not aware of the AP requirement for > guaranteed downstream bandwidth, it may think it has sufficient capacity and > accept new TS request from QSTA. Once new TS is formed, the AP will protect > it by all means and the AP's internally generated traffic will be compromised. > Any comments?
CW, I think it is quite unlikely that the AP SME does not know the details of its downstream traffic. The admission control module has to know about all the scheduled traffic passing through the AP - both upstream and downstream. If it does not have this complete picture, it cannot make correct decisions about admitting new flows and cannot guarantee QoS to any traffic. If a situation occurs where a new downstream flow can potentially disrupt an established TS, the AP can handle it as it chooses. It could notify the QSTA that the TSPEC needs to be changed or it could throttle the new flow and keep the established TSPEC intact. Hope this helps. - Harshal ------------------------ Yahoo! Groups Sponsor --------------------~--> Most low income households are not online. Help bridge the digital divide today! http://us.click.yahoo.com/I258zB/QnQLAA/TtwFAA/5AhqlB/TM --------------------------------------------------------------------~-> http://www.wireless--lan.com/ http://www.wlanforum.com/ http://groups.yahoo.com/group/wirelesslan/ Yahoo! Groups Links <*> To visit your group on the web, go to: http://groups.yahoo.com/group/wirelesslan/ <*> To unsubscribe from this group, send an email to: [EMAIL PROTECTED] <*> Your use of Yahoo! Groups is subject to: http://docs.yahoo.com/info/terms/
