Radwin 5000 HPMP - Chapter 10: Smart Bandwidth Management; What Is Smart Bandwidth Management

RADWIN5000HPMPUserManual Release3.5.70 10‐1
Chapter10:
SmartBandwidth
Management
WhatisSmartBandwidthManagement
SmartBandwidthManagement(SBM)enablesbusylinkstoutilizeunusedtimeslotresources
fromre lativelyidlelinks.ItappliestofixedandnomadicHSUs.Itoffers‐
• Peakratesofover100%ofassuredstaticallocationforbusylinks
• Enhancedoverallsectorutilization
• Dynamicbandwidthallocationtomaximizeserviceproviderthroughputandadhereto
customerSLAs
Toachievebestsectorperformance,eachHSUisallocatedseparateuplinkanddownlinktime
slots.
Downlinktr afficisfullyunderHBScontrol,sothatitcanallocateanyunuseddownlinktime
slotswhetherallocatedornottoabusylink.Thebusylinkmayoperateatanextremely
high
peakrates,1000%utilizationnotbeinguncommon.
Uplinktrafficisunpredictable.Again,inthecaseofabusylinkwithotherlinksrelativelyidle,
theHBSwillallocateextrauplinktimeslotstothebusylinkfromfreepoolonly.Ifallofthe
uplinktimeslotsareallocated,then
SBMwillnotoperateintheuplinkdirection.
Theallocationofuplinkanddownlinktimeslotsbecome sanetworkpolicyissue.For
example,ifalltheHSUsprovideregularinternetservice,itmightbeadvisabletogiveeach
oneminimumtimeslotsinbothdirections(subjecttothe63timeslotmaximumineach
direction)andallowtraffictodynamicallydetermine timeslotutilization.Alternatively,ifthe
HSUsareusedforbackhaul,theminimumnumber oftimeslotsineitherdirectionshouldbe
allocatedtomeetdefinedservicerequirements(suchasaSLAs).
TheRADWINManagerprovidesfacilitiestoconfigureseparateuplinkanddownlinktime
slots.Itfurthermonitorsperformance,providingtabularandgraphicutilizationstatistics.