User's Manual

TrangoSystems,Inc. StrataLink24QuickStartGuide 13
Features
TheStrataLink24basicfeaturesarebrieflydescribedhere.Formoreinformationon
advancedfeaturesandafullcommandlineinterfacelisting,pleasereferencethe
individualApplicationNotesandFullUserManualavailableonlineat
www.trangosys.com
.
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TrafficCapacity
WithQAM1024modulationina60MHzchannel,thelinkcansupportcapacitiesupto
750Mbpsfullduplexor1.5GbpsMbpsaggregate,includingtheMultilayerHeader
compression.Headercompressionisalwaysactiveunlessdisabledbytheuser.
Norestrictionsareputonthechannelsizeormodulationlevelsthatcanbesetbythe
user,howeverthecapacityisrestrictedbasedonthelicensekeyinstalled.
Thebasemodelcomeswith200Mbpsfullduplexlicenseandthereareupgradekeys
availablethatcanopentheentire750Mbpscapacity:
SL‐Key‐300:
Description:Unlocksthroughputcapacityfrom200upto300MbpsFullDuplexpayload
(300Mbpseachdirection)–Coversonelink–(2licensekeysprovided)
SL‐Key‐400:
Description:Unlocksthroughputcapacityfrom200upto400MbpsFullDuplexpayload
(400Mbpseachdirection)–Coversonelink–(2licensekeysprovided)
SL‐Key‐MAX:
Description:UnlocksthroughputcapacityuptoMaximumcapacityFullDuplexpayload
(Approx.750Mbpseachdirection)–Coversonelink–(2licensekeysprovided)
MultilayerHeaderCompression
Whendynamicmultilayerheadercompressionisenabled,upto750Mbpscapacity
(IPv4)canbeachievedwithoutthedependencyontrafficpayload.Upto2048headers
arestoredinadatabaseandtheEthernetheaderisreplacedwitha2or4bytetag.The
tagisre‐mappedtothecorrectEthernetheaderonthefarendofthelink.Statisticsare
availabletoshowtheeffectivenessoftheHeaderCompressionEngines.Therearetwo
enginesusedforcompressingthestreams,oneprimarilyforL2portionoftheheader,
andanotherfortheL3‐L4portionsoftheheader.
Ahigherpercentageindicatesbettercompressioneffectiveness.Forasinglestreamof
IPV4withUDPthepercentagecanbeashighas60%.