D-Link DWL-3600AP User Manual

ConfiguringQualityofService
D-Link UnifiedAccessPointAdministrator’sGuide
November2011 Page105
UnifiedAccessPointAdministrator’sGuide
Station EDCA Parameters
Queue Queuesaredefinedfordifferenttypesofdatatransmittedfromstation‐to‐AP:
• Data0(Voice)—Highestpriorityqueue,minimumdelay.Time‐sensitivedata
suchasVoIPandstreamingmediaareautomaticallysenttothisqueue.
• Data1(Video)—Highestpriorityqueue,minimumdelay.Time‐sensitivevideo
datais
automaticallysenttothisqueue.
• Data2(besteffort)—Mediumpriorityqueue,mediumthroughputanddelay.
MosttraditionalIPdataissenttothisqueue.
• Data3(Background)—Lowestpriorityqueue,highthroughput.Bulkdatathat
requiresmaximumthroughputandisnottime‐sensitiveissenttothisqueue

(FTPdata,forexample).
AIFS
(Inter‐FrameSpace)
TheArbitrationInter‐FrameSpacing(AIFS)specifiesawaittimefordataframes.
Thewaittimeismeasuredinslots.ValidvaluesforAIFSare1through255.
cwMin
(MinimumContention
Window)
Thisparameterisusedbythealgorithmthatdeterminestheinitialrandom
backoff
waittime(window)forretryofadatatransmissionduringaperiodofcontentionfor
UnifiedAccessPointresources.ThevaluespecifiedhereintheMinimumContention
Windowistheupperlimit(inmilliseconds)ofarangefromwhichtheinitialrandom
backoffwaittimewillbedetermined.Thefirst
randomnumbergeneratedwillbea
numberbetween0andthenumberspecifiedhere.Ifthefirstrandombackoffwait
timeexpiresbeforethedataframeissent ,aretrycounterisincrementedandthe
randombackoffvalue(window)isdoubled.Doublingwillcontinueunti lthesizeof
therandom
backoffvaluereachesthenumberdefinedintheMaximumContention
Window.
cwMax
(MaximumContention
Window)
ThevaluespecifiedhereintheMaximumContentionWindowistheupperlimit(in
milliseconds)forthedoublingoftherandombackoffvalue.Thisdoublingcontinues
untileitherthedataframeissentortheMaximum
ContentionWindowsizeis
reached.
OncetheMaximumContentionWindowsizeisreached,retrieswillcontinueuntila
maximumnumberofretriesallowedisreached.
TXOPLimit TheTXOPLimitisastationEDCAparameterandonlyappliestotrafficflowingfrom
theclientstationtotheAP.TheTransmissionOpportunity(TXOP)
isanintervalof
time,inmilliseconds,whenaWMEclientstationhastherighttoinitiate
transmissionsontothewirelessmedium(WM)towardstheUnifiedAccessPoint.
TheTXOPLimitmaximumvalueis65535.
Other QoS Settings
NoAcknowledgement SelectOntospecifythattheAPshouldnotacknowledgeframeswithQosNoAckas
theserviceclassvalue.
APSD SelectOntoenableAutomaticPowerSaveDelivery(APSD),whichisapower
managementmethod.APSDisrecommendedifVoIPphonesaccessthenetwork
throughtheAP.
Note:Afte ryouconfiguretheQoSsettings,youmustclickApplytoapplythechangesandtosavethe
settings.ChangingsomesettingsmightcausetheAPtostopandrestartsystemprocesses.Ifthis
happens,wirelessclientswilltemporarilyloseconnectivity.WerecommendthatyouchangeAP
settingswhenWLAN
trafficislow.
Table40:QoSSettings(Cont.)
Field Description

D-Link DWL-3600AP Specifications

General

Frequency band	2.4 GHz
Cabling technology	10/100/1000Base-T(X)
Networking standards	IEEE 802.11g, IEEE 802.11n, IEEE 802.3, IEEE 802.3ab, IEEE 802.3af, IEEE 802.3u
Ethernet LAN data rates	10, 100, 1000 Mbit/s
Maximum data transfer rate	300 Mbit/s
Quality of Service (QoS) support	Yes
Data transfer rate	1 Gbit/s
Wireless technology	802.11 b/g/n
Antennas quantity	2
Antenna gain level (max)	4.7 dBi
Internal	No
Certification	FCC, CE
LED indicators	LAN, Power, WLAN
Interface	RJ-45
WAN connection	Ethernet (RJ-45)
Security algorithms	128-bit WEP, 64-bit WEP, SSID, WPA, WPA2
Storage temperature (T-T)	-20 - 65 °C
Operating temperature (T-T)	0 - 40 °C
Storage relative humidity (H-H)	5 - 95 %
Operating relative humidity (H-H)	10 - 90 %
Power supply	8 W
Input current	2.5 A
AC input voltage	5 V

Weight and Dimensions

Weight	635 g
Dimensions (WxDxH)	203 x 203 x 48 mm