D-Link DWC-1000 User Manual - Page 82

Wireless Controller User Manual WMM Mode : W i-Fi M u lt iM ed ia (W M M ) is en abled b y d efault . W it h W MM en ab led , Qo S p rio rit izat io n an d co o rd in at io n o f wireles s med iu m acces s is on. W ith W MM enabled, QoS s ettings on the DW C-1000 wireles s controller control downs tream traffic flowing from the acces s point to client s tation (A P EDCA p aramet ers ) an d t h e u p stream t raffic flo win g fro m t h e s t at io n t o t h e access p o in t (s t at io n EDCA p aramet ers ). Dis ab lin g W M M d eact iv at es Qo S co n t ro l o f s t at io n EDCA p aramet ers o n u p s t ream t raffic flo win g fro m t h e s t atio n t o t h e access p oin t W it h W M M d is ab led , y o u can s t ill s et s o me p aramet ers o n t h e d o wn s t ream t raffic flo win g fro m t h e acces s p o in t t o t h e clien t s t at io n (A P EDCA p aramet ers ).  To d is ab le W M M ext en s io n s , click Di s abl ed.  To en ab le W M M ext en s io n s , click Enabl ed S tati on EDCA Parameters Queue : Qu eu es are d efin ed fo r d ifferen t t y p es o f d at a t ran s mit t ed fro m s tation-to-AP:  Data 0 (Voi ce): Hig h p rio rit y q u eu e, min imu m d elay . Time -s en s it iv e d at a s u ch as Vo IP an d s t reamin g med ia are au t o mat ically s en t t o t h is queue.  Data 1 (Vi deo): Hig h p rio rit y q u eu e, min imu m d elay . Time -s en s it iv e v id eo d at a is au t o mat ically s en t t o t h is q u eu e .  Data 2 (bes t effort): M ed iu m p rio rit y q u eu e, med iu m t h ro u g h p u t an d delay. Mos t traditional IP data is s ent to this queue.  Data 3 (B ack g round): Lo wes t p rio rit y q u eu e, h ig h t h ro u g h p u t . Bu lk d at a t h at req uires maximu m t h ro u gh put an d is n o t t ime -s en sitiv e is s en t t o t h is q u eu e (FTP d at a, fo r examp le). AIFS (Inter -Frame S pace): Th e A rb it rat io n In t er-Frame Sp acin g (A IFS) s p ecifies a wait t ime fo r d at a frames . Th e wait t ime is meas u red in s lo t s . Valid v alu es fo r A IFS are 1 t h ro u g h 255. cwMi n (Mi ni mum Contenti on Wi ndow): Th is p aramet er is u s ed b y t h e alg o rit h m t h at d et ermin es t h e in it ial ran d o m b acko ff wait t ime (win d o w) fo r d at a t ran smis sio n d u ring a p erio d o f co n tent ion fo r Th e v alu e s p ecified in t h e M in imu m Co n t en t io n W in do w is t h e u p p er limit (in millis eco n d s ) o f a ran g e fro m wh ich t h e in it ial ran d o m b acko ff wait t ime is d et ermin ed . Th e 80