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Masters Thesis
Evaluation of VoMPLS compared to VoIP
Edward FjellsklStig Solberg
Faglrer: Ragnar Johnsen
Veileder: Per Eirik Heimdal
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Agenda
Introduksjon Hvorfor pakkesvitsjet tale?
(VoP -Voice over Packet)
VoIP MPLS / VoMPLS UMTS VoMPLS i UMTS Oppsummering
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MPLS er en godkjent teknologi-standard MPLS tillater at de fleste typer pakker blir videresendt
p lan 2 (iht. OSI-modellen) MPLS er en viktig utvikling innen Internet teknologier VoMPLS er en metode for transportere tale direkte
over MPLS uten frst innkapsle tale data i IP
MPLS Multiprotocol Label Switching
Introduksjon
Oppsummering
VoMPLS in UMTS
UMTS
MPLS/VoMPLS
VoIP
VoPIntroduksjon
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VoP Voice over Packet
Hvorfor VoP?
Vedlikeholde kun en nettverks-teknologi
Ressurs effektiviseringBilligere verdiskapende tjenesterInnsparing p telefonregningen
Oppsummering
VoMPLS in UMTS
UMTS
MPLS/VoMPLS
VoIPIntroduction
VoP
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IP UDP RTP Voice Payload
VoIP
Terminologien VoIP Hvorfor UDP? Hvorfor RTP?
Oppsmmering
VoMPLS in UMTS
UMTS
MPLS/VoMPLSIntroduction
VoP
VoIP
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VoIP cont.
Oppsmmering
VoMPLS in UMTS
UMTS
MPLS/VoMPLSIntroduction
VoP
VoIP
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MPLS / VoMPLS
Hvorfor MPLS?
MPLS-TE (Traffic Engineering)
VoMPLS.
Label TTLSExp
20 bits 3 bits 8 bits
1 bit
Payload
Oppsummering VoMPLS in UMTSUMTSIntroductionVoP VoIPMPLS/VoMPLS
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VoIPPSTN
ISDNVoATMVoFR
.
.others
VoIPPSTN
ISDNVoATMVoFR
.
.others
GW
GWGW
GW
Til
Fra
Til
FraMPLS nettverk
Eksempel TaleNettverk
Eksempel TaleNettverk
Ogs betegnet(ingress/egress)
LER (Label Edge Router)
BetegnetLSR
(Label Switching Router)
BetegnetLSP
(Label Switching Path)
Oppsummering VoMPLS in UMTSUMTSIntroductionVoP VoIPMPLS/VoMPLS
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Universal MobileTelecommunicationsSystem (3G)
Pakke-basert transmisjon
opptil 2Mbps Alltid koblet opp mot
Internett Nye tjenester
UMTS
Oppsummering VoMPLS i UMTSIntroductionVoP VoIPMPLS/VoMPLSUMTS
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ATM i UMTS kjerne-nettverk Overgang til IP/MPLS Evolusjon til ett IP aware
network
ATM utstyr kompatibelt medMPLS MPLS sttter CoS/QoS for
tjeneste differensiering
MPLS i UMTS
Oppsummering VoMPLS i UMTSIntroductionVoP VoIPMPLS/VoMPLSUMTS
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Et UMTS nettverk....
Oppsummering VoMPLS i UMTSIntroductionVoP VoIPMPLS/VoMPLSUMTS
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QoSDelay (forsinkelse)
Multiplexing
Payload til overhead forholdet
Header kompresjon
Interoperabilitet
Ytelse, tilgjengelighet and plitelighet
konomiske aspekter
Oppsummering - VoMPLS
IntroductionVoP VoIPMPLS/VoMPLSUMTSVoMPLS in UMTSOppsummering
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Oppsummering VoMPLS i UMTS
MPLS i kjerne-nettetVoIPoMPLS eller VoMPLS2 basis-muligheter
InnkapslingRe-mapping
Pre-definerte ellerdynamiske stier (LSPs)?
konomi og fordeler
IntroductionVoP VoIPMPLS/VoMPLSUMTSVoMPLS in UMTSOppsummering
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Sprsml....?
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