5g and the evolution of internet protocols...2017/04/06 · etsi summit 4 5g network infrastructure...
TRANSCRIPT
ETSI SUMMIT ON 5G NETWORK INFRASTRUCTURE
5GANDTHEEVOLUTIONOFINTERNETPROTOCOLSPresentedbyJariArkkoMember,InternetArchitectureBoard(IAB)&SeniorExpert,EricssonResearchSpeakingasanindividual;Photoandgraphiccredits:ETSI,Ericsson,O.Kolkman,&D.Thaler
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ETSI Summit 5G Network Infrastructure
OUTLINE
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• 5GhasanimpactontheInternet?OrInternetevolu;onhasanimpacton5G?
• Examplesofongoingevolu;onoftheInternet• Whatmakesforasuccessfulprotocol?• WorkingwithandintheIETF
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ETSI Summit 5G Network Infrastructure
ONGOINGEVOLUTIONSomeareasofacUveInternetevoluUon
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ETSI Summit 5G Network Infrastructure 4
• Webprotocolstack(HTTP2,QUIC)• Securityandprivacy(increasingTLSusage,IETFdevelopments)
• Real-;mecommunica;onsfrombrowsers(WebRTC)
• Management,orchestra;on,virtualisa;on,soTware-anddata-modeldrivennetworking(NVO,SFC,YANG,SDN)
• Latencyimprovements• InternetofThings• Runningcodeandopensource
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ONGOINGEVOLUTION
ETSI Summit 5G Network Infrastructure
OBSERVATIONSONTHEFASTPACEOFEVOLUTION
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• Why?Weneededallthosethings…andeverythingrunsonthewebtoday;butmarket&trafficconsolida;onalsoplayedarole
• Predic;on:BigshiTssofar,evenbiggerahead• Func;onalitymovestoapplica;ons&browsers,evenfasterchangeahead!What’snext?
• Atthesame;me,virtualiza;onandSDNaredrivinganotherquickchangeinnetworks
• 5Gneedstoembracethesechanges(andhas)
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ETSI Summit 5G Network Infrastructure
OTHERNOTABLETRENDS
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• SmartobjectsshiTingfromclosed,ver;calsolu;onstomoregeneralnetworkingsolu;ons(mobilenetworks&WLAN,Internet)• Newchallengesfoundonhigherlayers(security,
seman;cinteroperability)
• Lowlatencyasacross-cudngissueinmanydevelopments
• Opensourcedevelopment&workingmethods;effectonstandards?
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IEEE802.15.4
WiFi3GLTE
BTLE
IPv6
TCP/UDP
6LoWPAN
REST(CoAP,HTTP)
ResourceView/temp /light /switch
ETSI Summit 5G Network Infrastructure
WHATMAKESFORASUCCESSFULPROTOCOL?
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• Whythinkaboutthis?• Somanytechnologydevelopmentsnevergetwidelydeployed,orevenusedatall
• Yetsomearewildlysuccessful• RFC5218(Thaler&Aboba)• I’msureweallalsohavepersonalexperiences
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ETSI Summit 5G Network Infrastructure
THEADVICE
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Important initially • Very positive net value • Incremental
deployability • Availability of code,
specs
Less important initially • Technical design • Maintenance
Important for wild success • Extensibility • No hard scalability limits • Good enough security
ETSI Summit 5G Network Infrastructure
EXAMPLES
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• Wildsuccesses:IP,Web,…• HowaboutIPv6?Lessons?• Failures:many
• E.g.,whydidMobileIPfail?Marketsqueezedfromtwosides,linklayersstartedhiding(most)movements;appslearnedtonotcareaboutaddresschanges
• ManyQoSdesignsfailed.Lessons?
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Example: IP
Scale
Purpose
IPovereverything,everythingoverIP
ETSI Summit 5G Network Infrastructure
WORKINGINORWITHTHEIETF
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• Youarenotalone:lotofrelatedworkattheIETF:transportevolu;on,iden;fier-baseddesigns+more
• Simplicityofcleanslateisseduc;ve,buthistorically,changeisevolu;onary;deploymentandco-existencestrategiesareasimportantastheprotocoldesigns
• IETFwillhappilyworkwithothers;bringproblems!• Early!• Realworldissuesfromoperatorsmuchappreciated&debatedfrommul;pleangles
• Seealsohpps://datatracker.ieq.org/liaison/1502/
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ETSI Summit 5G Network Infrastructure
CONCLUSIONS
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• Takenoteofthechangingtrafficpaperns;5Gneedstomatchtomorrow’straffic
• Trendformoreencryp;onwillcon;nue,andwillaffectworkformanynetworkop;miza;ons
• Notepastfailureswithdesignsthatassumelarge-scalecoordina;on(e.g.,QoS)orflagdays
• Noteverythingwillfly.Dootherswanttoplay?• ProblemsappreciatedattheIETF,bringthem!Early!• Whatcanwealldotohelpmake5Ganinnova;onengineandspeedupevolu;oninthenetwork?
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