D-Link DWC-1000 User Manual page 82

Wireless Controller
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
o n . W it h W M M en abled, Qo S s et tin gs o n t h e DW C-1000 wireles s co n t ro ller
co n t ro l d o wn s t ream t raffic flo win g fro m t h e acces s p o in t t o clien t s t at io n
(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 ).
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 t at io n -t o -A P:
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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
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To d is ab le W M M ext en s io n s , click Di s abl ed.
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To en ab le W M M ext en s io n s , click Enabl ed
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
q u eu e.
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
d elay . M o s t t rad it io n al IP d at a is s en t t o t h is q u eu e.
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).
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User Manual