1 Chapter 9 Local Area Networks - Software and Support Systems.
THE PROGRAMMABLE CLOUD NETWORK€¦ · networks, operations support systems (OSS) and business...
Transcript of THE PROGRAMMABLE CLOUD NETWORK€¦ · networks, operations support systems (OSS) and business...
THE PROGRAMMABLE CLOUD NETWORK A PRIMER ON SDN AND NFVSTRATEGIC WHITE PAPER
The evolution to Network Functions Virtualization (NFV) and Software
Defined Networking (SDN) is starting and will continue over time due to
the financial and operational benefits that result. Alcatel-Lucent is at the
forefront of the transformation to SDN and NFV, contributing to industry
groups and developing solutions that have the potential to create a revolution
in programmable cloud networking. This paper explores the key concepts
behind SDN and NFV, the state of the industry today, and the unique approach
Alcatel-Lucent is taking in each area to enable the programmable cloud network.
TABLE OF CONTENTS
INTRODUCTION / 1
SDN: WHAT IS IT? / 1
THE STATE OF THE INDUSTRY / 2
THE REALITY OF SDN / 3
ALCATEL-LUCENT AND SDN / 4
NFV: WHAT IS IT? / 5
NFV: SEPARATING THE REALITY FROM THE HYPE / 6
WHO IS INTERESTED IN NFV? / 7
WHAT IS NEXT FOR NFV? / 7
THE PROGRAMMABLE CLOUD NETWORK / 8
CONCLUSION / 9
ABBREVIATIONS / 10
CONTACTS / 10
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INTRODUCTIONNetwork Functions Virtualization (NFV) and Software Defined Networking (SDN) are considered by many to be the two forces that will shape the future of telecommunications networks:
• NFVinvolvesportingnetworkortelecommunicationsapplicationsthattodaytypicallyrunondedicatedandspecializedhardwareplatformstoavirtualizedcloudinfrastructure.
• SDNinvolvesincreasingthenetwork’sabilitytodynamicallyadapttotheneedsofapplicationsandservices;thatis,tomakethenetworkmoreprogrammable.
The two concepts are closely linked because the programmability of SDN will greatly enhance the performance and flexibility of NFV applications by allowing dynamic place-mentofresourcesandperformingthechoreographednetworkingtoconnectthem.
TheevolutiontoNFVandSDNisstartingandwillcontinueovertimebasedontherelativeeconomicbenefitsthatresultandtheabilitytotransformtoday’sprovisionednetworks,operationssupportsystems(OSS)andbusinesssupportsystems(BSS)intodynamicallyadaptivenetworksandsystems.
Alcatel-LucentisplayingaleadingroleintheevolutiontoSDNandNFV.Weareactivecontributorsinleadingindustryfora,includingtheOpenNetworkingFoundation(ONF),OpenStackandtheInternetEngineeringTaskForce(IETF)forSDN.WearealsoattheforefrontofNFV,havingbeenappointedasaboardmemberoftheEuropeanTelecommunicationsStandardsInstitute(ETSI)NFVIndustrySpecificationGroup(ISG)inrecognitionofourpioneeringvirtualtelco(vTelco)vision.
Inaddition,weareactivelydevelopingdifferentiatedsolutionssuchastheCloudBand™solutionportfolio,whichincludestheCloudBandManagementSystemandCloudBandNode,anoveldatacenterSDNsolutiondevelopedbyourventure,NuageNetworks,andacompanionWANSDNsolution.Combined,theseassetshavethepotentialtocreatearevolutionaroundprogrammablecloudnetworking.
BeforeweexploretheAlcatel-Lucentapproachtotheprogrammablecloudnetwork,itisworthwhiletotakeacloserlookatSDN,NFVandthecurrentstateofthesetechnologiesintheindustrytoday.
SDN: WHAT IS IT?SDNisanetworkvisionwithmanydifferentdefinitions.TheONFpioneeredtheearlywork,buthasarelativelynarrowdefinitionofSDNwiththefollowingessentialcharacteristics:
• Separation of control and data planes so that hardware forwarding plane elements can be controlled by a control plane residing on a separate general-purpose compute-basedelement.
• A logically centralized control plane to allow simple switching elements to share a commoncontrolelementthatismoreintelligentandmorecomplexthanindividualisolatedcontrolelements.
• Network virtualization and slicingtoallowthenetworktoelasticallyscaleandadapt,andbesharedbymultipleentities,eachofwhichhasauniquenetworkview.
• Network application programming interfaces (APIs) to allow programming of networkresourcesbyapplicationsandservices.
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Figure 1. The ONF has defined a basic SDN architecture
TheONFdefinedanewprotocolcalledOpenFlowtoenabletheseparationandinterworkingofthecontrolanddataplanes.However,fewplayersintheindustryareadheringtotheONF’snarrowdefinitionofSDN.ThereisalsogeneralagreementthatSDNshouldbelessabout separation of the control and data planes and more about the programmability of networks.Itisacceptedthatsomeformofcentralizationofcontrolisappropriate,butopinionsdivergewidelyaboutthescopeofSDNandtheprotocolstobeused.
Therefore,inadditiontoONF,relatedstandardsarebeingdevelopedintheIETF,whichisworkingondatacenternetworkingandnetworkvirtualization,andintheOpenStackcom-munity,whichisdevelopingasetofAPIsthatarebecomingthede-factostandardforcloudresourcemanagementforcompute,storageanddatacenternetworkingmanagement.
Inthetelecomnetworkapplicationsandnetworkfunctionsvirtualizationspace,thedevelopmentofacommonindustryviewisledbythenewlyformedNFVIndustrySpecificationGroupinETSI.
THE STATE OF THE INDUSTRYTherearedisparateviewsintheindustryastothescopeofSDN.Thereisalsoalotofhype and misinformation in the industry and the media concerning whether SDN and NFVrepresentanevolutionorarevolution.
Alcatel-LucentandotherlargeequipmentvendorsseeSDNasanevolutionofthecurrentarchitectureandbelievethatthevaluepropositionofSDNcanoftenbeachievedthroughenhancementstoexistingprotocolsandsolutionstoachieverevolutionaryresults.New
Business Applications
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API API API
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Network device Network device
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entrants,includingventurecapital-backedstartups,tendtoadvocatearevolutioninthecurrentarchitecturedrivenbySDN,andaremorefocusedoncompletelynewsolutionsandprotocols.OperatorsarestilltryingtodecidehowbesttobenefitfromSDN.
Recenteventshavebroughtsignificantlyincreasedindustryattentionandcredibility toSDN.Forexample:
• Google’sannouncementoftheimplementationofitsdatacenternetworkbasedonSDNprinciplesingeneralandOpenFlowinparticular,followedbysimilarannouncementsbyNTT,NECandDell.
• VMware’sacquisitionofSDNpioneerNicirafor1.3billionUnitedStatesdollars,Brocade’sacquisitionofVyatta,Juniper’sacquisitionofContrailfor173millionUnitedStatesdollars,F5’sacquisitionofLineRate,andCisco’smultipleacquisitionsandinvestmentsinthisspace,includingCloupiafor125millionUnitedStatesdollars,Caridenfor141millionUnitedStatesdollars,andInsieme,aspin-outwitha750milliondollarbuy-backoption.
• LargeserviceproviderssuchasVerizon,DeutscheTelecomandAT&Tbeingvocal, ifnotspecific,abouttheirSDNintentions.
• EricssonandHuaweiprovidingdetailsabouttheirSDNimplementationsandroadmapsasafocalpointoftheirMobileWorldCongressannouncements.
Inthefollowingsections,weoutlinetheapproachthatAlcatel-LucentistakinginSDN,andtherationalebehindit.
THE REALITY OF SDNCloudserviceproviderstypicallyrundatacenterscomprisedofhundredsofswitches,thousandsofvirtualswitches(vSwitches),firewallsandloadbalancerstointerconnectthebladeserversandracks.Eachoftheseelementstypicallyrequiresprovisioningfromaseparatesystem,aswellasseparateoverlaynetworksandsystemstointerconnecttothestorageresourcesandtheWAN.Inthiscontext,theseparationofthecontrolanddataplanesanduseoftherelatedOpenFlowprotocoltocentralizeandunifycontrolofthisinfrastructureisattractiveandisaprimemotivationforSDNinthedatacenter.
However,thereisanadditionalissue:theneedtosimultaneouslysupportthousandsofcustomers,eachofwhichneedsitsownvirtualprivatenetwork(VPN)toconnectvirtualprocessingandstoragecomponents.EachVPNmustbeisolatedfromothertenants’resources,yetbeabletodynamicallyscaleandadapttothecustomer’schangingdemandsatdifferenttimesofthedayormonth,forexample.
Thisso-calledmulti-tenancyrequirementcannotbeadequatelymetwithtraditionaltechniques,suchasmanuallyprovisionedEthernetvirtualLANs(VLANs),duetothelimitedscalabilityofsuchsolutions.Conversely,Layer3-basedapproachesthatallocateprivatesubnetstoeachtenantallowbetterscaling,butdonotalloweasymigrationofprocessesduetotheattendantchangeinIPaddressthatwouldtypicallyoccur.
Consequently,newsolutionsarerequired.AmoreholisticapproachtodatacenterSDNcanprovidetherightfoundationalelements,specifically:
• Managementofcloudresourcestosupportend-to-endapplicationsneeds,includingcompute,storageandnetworkinadistributedandfullyautomatedenvironment.
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• Completeautomationofnetworkingconnectivity,bothinthedatacenterandtotheWANbydynamicallycreatingandreconfiguringvirtualprivateLayer2andLayer3networkswithwebscale.
• APIsthatenablecloudconsumerstoconstructandmanagetheirownvirtualnetworksofresourcesthroughtechnology-agnosticnetworkabstractions.
These foundational elements are the basis of the approach Alcatel-Lucent is taking for datacenterSDN,asdescribedinthefollowingsection.Inaddition,theroleofSDNoutsidedatacentersisbeingevaluatedtoallowmoredirectanddynamicpolicy-basedcontroloftheall-IPnetworkinfrastructure,includingtheoptical,accessandcustomerpremisesequipment(CPE)domains.
Theincreasedvirtualizationofthetelconetworkwillresultinamuchmoredynamicenvironmentwhereapplicationsandservicescanbeinstantiated,scaledandmovedonthefly.Increaseduseofanalyticswillenableoperatorstosurgicallyanddynamicallyoptimizethenetworkandallowenterprises,contentprovidersandenduserstorequestspecificnetworkservicesondemand.Asaconsequenceofthesetrends,theIPandtrans-portinfrastructuremustbeabletoadaptmuchmorerapidlytochangingconnectivityneedsthanitdoestoday.MeetingthatrequirementistheessenceofSDN.
ALCATEL-LUCENT AND SDNGiventhemanydifferentdefinitionsofSDNthatexist,itisfirstimportanttospecifywhatismeantbySDNinthecontextoftheAlcatel-Lucentvision.Alcatel-LucenthasdefinedSDNasfollows.
A software defined network (or function) is one that allows automatic and dynamic programming of network services by applications,allowingmodificationandcon-sumptionofnetworkresourcesondemand.Thisisenabledby:
• Abstraction of network functionstoprovidesimple,application-levelprogramming ofthenetworkcontrolplanes.
• Modification of the forwarding path of the network (through the abstracted control plane) by changing forwarding entries to optimize a) the network path or allocated capacity,orb)specificfloworpacketforwardingrules,includingmodifyingtheflowmarking,queuing,priority,bandwidthallocationandpolicing.
Alcatel-LucentbelievesthataprimaryvalueofSDNwillcomefromautomatingthedatacenternetworkandtheassociatedWANdeliverynetworkwiththefollowingattributes:
• Supportoftruemulti-tenantdatacenternetworkswithinter-tenantandinter-processsecurity.
• SeamlessanddynamiclinkingofthedatacentervirtualLANsandIPsubnetswithVPNsintheWAN.
• Full,webscalevirtualmachine(VM)mobilitywithinandacrossdatacenters.
• Enablementofthirdpartiestorequestnetworkresourcesandaffectnetworkbehavior.
• Theabilitytocontinuouslyoptimizecloudnetworkdeploymentsbymonitoringnetwork,compute and storage utilization and applying sophisticated multidimensional analytics andpoliciestoprovidetherequisiteservicelevelagreements(SLAs).
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Tothisend,wehavelaunchedauniquesetofSDNproductsfordatacenternetworking,ledbyourventure,NuageNetworks1.Inaddition,weareinvestingintheCloudBandCloudManagementSystem,whichprovidesanopen,analytics-drivensolutionforcomputeandstorageresourceoptimization.Inshort,CloudBandenablesthecreationofafullydistributedcloud,includingseamlessapplicationon-boardingandlifecyclemanagement,andthecreationofcloudandnetworkspecificationpoliciesthatallowtheNuageNetworkssolutiontoprovidetherequirednetworkautomation.Italsooffersefficient,automatedandeasy-to-deploycloudnodesthatallowforplug-and-playcreationofdistributedcloudenvironments.
Outsidethedatacenterenvironment,wearecurrentlyinvestigatingsolutionsforusecasesthatrequirerapidadaptationofthenetwork.Theideaistosupportdynamicnetworkslicingthatwillallowoperatorstoresellnetworkcapacitytodifferentservicesandserviceproviders,includingwebservicesproviders,enterpriseservicesproviders,strategicindustriesandconsumers.Thiswillbethesubjectofaforthcomingwhitepaper.
WenowconsiderfurtherthetopicofNFV,whichbuildsonthesesolutionelementstocreateamoreefficientandscalablesetoftelecommunicationsapplicationsandservices.
NFV: WHAT IS IT?NetworkFunctionsVirtualizationaimstoimprovethescalability,adaptabilityandeconomicsofnetworkapplicationsbyusingstandardITvirtualizationtechnologyto consolidatethemanydifferentnetworkequipmenthardwareplatformsthatareoptimizedforasingleapplicationontoindustry-standardhigh-volumeservers,switchesandstorage.
Usingcloudorchestrationplatforms,thesevirtualizedapplicationscanthenbeinstantiatedin,ormovedto,variouslocationsinthenetworkasrequiredbydynamicallychangingdemand,withoutincurringthetimeorcostrequiredtoinstallnewdedicatedequipment.Inaddition,NFVfostersinnovationbyallowingunprovenservicestobedeployedquicklyusingafastfailmodel,incurringverylittlefinancialrisk,whileprovidingopportunitiesfornewsourcesofrevenue.
AsforSDN,itisusefultodefinewhatcomprisesavirtualnetworkfunctionasforeseenbyAlcatel-Lucent.
A virtual network function is a software instance of a network function that leverages standard IT virtualization technology to run on a general-purpose computing, storage and network infrastructure,ratherthanonverticallyintegratedhardwareandsoftwareplatformsdedicatedtoparticularfunctions.Thegoalisto:
• Enable improved economics through consolidation of functions and automated operations.
• Support the flexibility and agility necessary to adapt to dynamically changing usage demandsandrapidlyevolvingdeploymentneeds.
• Optimize performance by distributing functions to locations in the network that candelivertherequiredqualityofservice(QoS)intermsoflatency,bandwidth andotherrequirements.
1Seehttp://www.nuagenetworks.net/press-releases/nuage-networks-introduces-2nd-generation-sdn-solution-for-datacenter-networks-accelerating-the-move-to-business-cloud-services/
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TheNFVapproachhasthepotentialtoprovidesignificantbenefitsfornetworkoperatorsandtheircustomers.Benefitsinclude:
• Reducedcapitalandoperatingexpenditures(CAPEXandOPEX)foroperatorsthroughreducedequipmentcosts,spaceandpowerconsumption.
• Reducedtime-to-markettodeploynewnetworkservicesandcriticalsecurityupgrades.
• Theabilitytoflexiblyscaleup,scaledownorevolveservices.
• Theabilitytotrialanddeployinnovativenewserviceswithlowerrisk,andthereforewithsuperiorreturnoninvestment(ROI).
• Theabilitytocustomizenetworkfunctionstomeettheuniqueneedsofspecificcustomers.
NFV: SEPARATING THE REALITY FROM THE HYPEThenatureofthegainassociatedwithNFVistwodimensional,asdepictedbythetwoaxesinFigure2.Ononehand,therearetheperformancegainsassociatedwiththeincreasedautomation,sharingandelasticityofcloud-basedsolutions,whichwetermdynamiccontrolgain;ontheotherhandthereareCAPEXandOPEXsavings,whichwetermcostgain.
Figure 2. Virtualizing different network functions brings different benefits
Source: Alcatel-Lucent internal analysis
AsshowninFigure2,inamajorityofcases,serviceproviderswillbenefitfromthevirtual-izationofnetworkfunctions,evensomefunctionsthatperformreal-timepacketprocessingandwhosecurrentimplementationusesdedicatedhardwaredevicessuchasapplication-specificstandardproducts(ASSPs)andapplication-specificintegratedcircuits(ASICs).Importantly,implementingthesamefunctionsongeneral-purposeprocessors(GPP)mayincreaseCAPEXduetothehighernumberofserverbladesthatwouldberequired.However,theincreaseinCAPEXmaybeoffsetbyOPEXsavingsandautomationgains.
Thereare,however,notableexceptions.Ouranalysisshowsitisunlikelythatvirtualiza-tionofhigh-performanceroutersorEthernetswitcheswillbecosteffectivebecausethedataplaneprocessingfunctionalityofGPPsistypicallyonlyontheorderof1to2Gb/spercore.Thisspeedpalesincomparisontothenetworkprocessorunit(NPU)orASIC-basedpacketprocessingthroughputof400to640Gb/savailabletoday.
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Elements andNetwork Manages
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Inaddition,anynetworkingequipmentthatisdefinedbyauniquephysicallayertech-nology—non-Ethernetphysicallayertechnology(PHY)suchasdigitalsubscriberline(DSL),passiveopticalnetwork(PON),radiofrequency(RF)radioaccessnetwork(RAN)andcoherentoptical—whichtypicallybenefitfromdigitalsignalprocessing(DSP)componentsarenotstrongcandidatesforvirtualizationastypicalGPPsdonotperformthesefunctionsaswellasaDSP.
Severalothernetworkfunctionsareinagreyzone.Forexample,virtualizationofprod-ucts,suchasmobilegateways,thatareprimarilyfocusedonpacketforwardingcouldresultincostsavingsincertaindeploymentscenarios,forexamplewhentheamountoftrafficisrelativelysmall,butnotrealizeanysavingsforhigherthroughputapplicationswithlargeamountsofvideotraffic.Inthelattercase,virtualizationcouldonlybejustifiedbydynamiccontrolgainbenefitssuchastheabilitytoroll-outnewservicesfaster,ortoelasticallyscalethemtomeetchangingdemandpatterns.
WHO IS INTERESTED IN NFV?Sevenoftheworld’sleadingtelecomsnetworkoperatorshavecreatedanewgrouptopro-motevirtualizationofnetworkfunctions.AT&T,BT,DeutscheTelekom,Orange/FranceTelecom,TelecomItalia,TelefonicaandVerizonhavesincebeenjoinedby70othernetworkoperators,telecomequipmentvendors,ITvendorsandtechnologyproviderstocreatetheETSIIndustrySpecificationGroup(ISG)forNetworkFunctionsVirtualization(NFV)andleadthetelecommunicationsindustryonthistransformationjourney.
Alcatel-LucentandCiscoaretheonlyvendorswhoareontheNFVmanagementteamhelpingtodrivethevision,strategyandimplementation,togetherwiththefoundingoperators.WewereawardedourleadershippositionintheNFVISGduetoourpioneer-ingworkoverthelasttwoyearsontheconceptofthevirtualtelco(vTelco)andthesubsequentdevelopmentoftheenablingCloudBandplatform.WehaverecentlybeenaskedtochairtheSecurityDefinitionandArchitectureGroupoftheETSIISGaswell— afurtherreflectionofourleadershipinthisdomain.
WHAT IS NEXT FOR NFV?Alcatel-Lucent’scurrentfocusintheserviceproviderspaceistobuildstrongstrategicrelationshipswiththeNFVoperatorsandtohelpthemrealizethisfuture.Acombinedcompute,storageandnetworkconnectivitycloudmanagementandorchestrationplat-formisnecessaryineveryNFVimplementation.
Asaresult,ourCloudBandsolutionhasallowedustodevelopstrongrelationshipswithmanyTier1operatorsgloballyandweareworkingwiththemtodeployproofsofconcept,livetrials,andtocreateNFVlabsastheybegintheirNFVjourney.Eachoperatorisintheprocessofidentifyingthefirstapplicationsorfunctionstovirtualizeandweareactivelyhelpingquantifythebenefitsineachcasetoensuretherightchoicesaremadetoachievetheirspecificgoals.
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THE PROGRAMMABLE CLOUD NETWORKTheAlcatel-Lucentvisionforthefutureoftelecommunicationsnetworksisbasedonthreepillarsthatcombinetoformtheprogrammablecloudnetwork,anevolutionoftheHighLeverageNetwork(HLN)visionthatreflectsthenewcloudnetworkreality:
1.Acollectionofvirtualizednetworkelementsimplementedongeneral-purposecomputeplatformsandrunningoverahighlyefficientandreliableIPandtransportinfrastructure.
2.Anend-to-endcloudmanagementsystemproviding:
a. Automation,orchestrationandoptimizationofcomputeandstorageresourceswithpre-integratedcloudnodes.
b. Serviceon-boardingusingaPlatformasaService(PaaS)layerforNFVandothercloudapplications.
c. Carrier-gradereliability,securityandanalyticsforfullSLAsupport.
d. Integrationwithournetworkconnectivitysolution(NuageNetworks)foroptimaluseofcompute,storageandnetworkresources.
3.Apolicy-drivenSDNsolutiontoenabledynamicprogrammingoftheunderlyingnetworking infrastructure for automated data center networking with seamless WANinterworkingandacrossthetelconetworkatlargethroughseamlessnetworkchoreography.
TheessentialarchitectureisshowninFigure3.ThekeycomponentsofthisvisionaretheCloudBandCloudManagementSystemandNuageNetworks’SDN-basednetworkingsolu-tion.Theresultingsolutionhasthepotentialtocreatearevolutionincloudnetworkingbyprovidinganopen,massivelyscalable,multi-tenantplatformcombiningcomputeandstorageorchestrationwithseamlessnetworkservicechoreographyforauniquelyflexibleandefficientcloudinfrastructure.Thissolutioniscomplementedbythevirtualizationroadmapforourportfolio(availableuponrequest).OurIPmultimediasubsystem(IMS)andMotivesolutionsareamongthefirstofourproductstobeofferedinafullyvirtualizedform.
Figure 3. Alcatel-Lucent combines SDN, cloud orchestration and NFV
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CONCLUSIONSDNandNFVhavethepotentialtoprofoundlytransformourindustryinthecomingyears,andAlcatel-Lucentisattheforefrontofdrivingthischangebybringingthedatacenterouttothenetworkandthenetworkintothedatacenter.
Theuniquenessofourapproachcanbesummarizedasfollows:weviewthecloudasawidelydistributedmultivendorinfrastructureconsistingofdatacentersofallsizeslocatedthroughoutthenetwork,withdynamicallyoptimizedVMplacementandotherresourceallocation,basedonthenetworkstatusandthespecificneedsoftheapplicationanditsusers.
Efficientnetworkmanagementiscriticaltothisdistributedcloudenvironment.Alloftheothersolutionsonthemarketuseanorchestration-basedapproachforcompute,storageandnetworking.Consequently,theyuseatraditionalconfiguration-basedapproachtothecriticalnetworkingportionofserviceconfiguration.
Incontrast,Alcatel-Lucenthasdecoupledthenetworkingportionandhasimplementedapolicy-baseddistributedservicerouting-typeapproachtodatacenternetworking.Inourarchitecture,computeorstorageresourcesareinstantiatedbythecloudmanagementsystem,whichresultsinautomatictriggeringofarequesttoacentralizedpolicyserverfornetworkingservices.ThesenetworkingservicesarethenautomaticallychoreographedbyassociatingtheflowwithneworexistingLayer2andLayer3+forwardinglabelsandrulesthatallowthedatacenternetworktoconnecttotheWANroutingandVPNinfrastructure.ThisapproachresultsinseamlessconnectivityfromtheVMallthewaytotheenduser.
Alcatel-LucentrecognizesthattorealizethebenefitsofNFV,anopen,multivendorcloudplatformthatunderstandsthespecificneedsofvirtualizednetworkfunctionsisrequired.Withthisplatform,serviceproviderscanautomatedistributedcloudmanagement.Theycanalsoautomatethefulllifecycleofnetworkfunctions,interfacingwithanSDNcomponenttoaddressthenetworkingneedsofthesefunctions.
WithAlcatel-Lucentastheirpartner,networkoperatorscandeployacomprehensivesolutioncomprisedofaleadingcloudmanagementsolutionforNFVandanovelauto-matedapproachtoSDN.
www.alcatel-lucent.com Alcatel, Lucent, Alcatel-Lucent and the Alcatel-Lucent logo are trademarks of Alcatel-Lucent. All other trademarks are the property of their respective owners. The information presented is subject to change without notice. Alcatel-Lucent assumes no responsibility for inaccuracies contained herein. Copyright © 2013 Alcatel-Lucent. All rights reserved. NP2013051357EN (June)
ABBREVIATIONSAPI application programming interface
ASIC application-specific integrated circuit
ASSP Application-specific standard product
BSS business support system
CAPEX capital expenditure
CPE customer premises equipment
DSP digital signal processor
ETSI European Telecommunications
Standards Institute
GPP General-purpose processors
HLN High Leverage Network
IETF Internet Engineering Task Force
IMS IP multimedia subsystem
ISG Industry Specification Group
NFV Network Functions Virtualization
NPU network processor unit
ONF Open Networking Foundation
OPEX operating expenditure
OSS operations support system
PaaS Platform as a Service
PHY physical layer
PON passive optical network
QoS quality of service
RAN radio access network
RF radio frequency
ROI return on investment
SDN Software Defined Networking
SLA service level agreement
VLAN virtual LAN
VM virtual machine
VPN virtual private network
vSwitch virtual switch
vTelco virtual telco
CONTACTSFor further information please contact:MarcusWeldon,[email protected]
MarkClougherty,[email protected]
PeterBusschbachCoreNetworksCTOPartnerPeter.Busschbach@alcatel-lucent.com
DavidAmzallag,[email protected]