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• What is Cloud ?
Telco Cloud
Why Cloud is necessary ?
• Demystifying Cloud :-
• NFV • SDN
• Hypervisor Vs Container
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NFV : Network function Virtualization also known as virtual network function (VNF)
HSS
OCS
MME
PCRF
DNS CGNAT
enB
SGw GGSN
DPI
PGw
Internet
Traditional LTE Network
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NFV : Network function Virtualization Switch
Internet Routers PGw
HLR/HSS
MME
OCS
PCRF
DNS
CGNAT
Specialized Appliances / Purpose Build Combination of Capacity & Functionality
Traditional LTE Network
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NFV : Network function Virtualization Virtual Network
Features of NFV
Purpose Build hardware to Generic Hardware
Generic Hardware
App running on Software V M V M
NFV - Softwarization - Virtualization - Orchestration
V M V M
V M V M
V M V M
V M V M
V M V M
DNS MME PGw HLR / HSS OCS PCRF Firewall
COTS HARDWARE Common hardware for all Apps Commercial off-the-shelf
Internet
Separation of Network Function & Capacity
Easy Capacity Scale Up / Down VM are Building Blocks
NFV Architecture
NFV Layers
Governing Specs
VM
VM
VM VM
VM
VM VM October 2012 White Paper • • • • • • • • • • • •
AT&T USA BT CenturyLink China Mobile Colt Deutsche Telekom KDDI Orange Telecom Italia Telefonica Telstra Verizon
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NFV : Network function Virtualization
Internet
Cloud LTE Network
SMSC
MME
HLR
Router
MSC
CRAN
PCRF
Virtual Machines
Switch
Virtual Machines
Components of NFV
PGw
Each Application running on One or Multiple VMs
Generic Hardware Virtual Machines
vSMSC
vMSC
vHLR
vSGSN
vGGSN
NFV Management & Orchestration
OSS / BSS
NFV Layers
NFVI
Os-Ma
(Network Function Virtualization Infrastructure) Orchestration Se-Ma
VNF ( Virtual Network Function) EM1
EM2
EM3
VNF2 vMSC
VNF Manager
NFVI Compute
Virtual Memory
(Virtualized Infrastructure Manager)
Virtual Network
Virtualization Layer Memory
• Management / Control for NFVI • Also manages Reports & events
NF-Vi
VIM Virtualized Infrastructure Manager
Network
Blades of HP / DELL Hardware TelecomTutorial.info www.TelecomTutorial.info
Or-Vi
VIM
VNF3 vHLR
Vi-Vnfm Virtual Compute
• Hypervisor : Responsible for abstracting physical resources into virtual resources
Or-Vnfm
Ve-Vnfm VNF1 vSMSC
• Manage Physical part in NFVI
Service , VNF & Infra description
NFV Architecture
NFV Management & Orchestration
OSS / BSS
VNF
• A VNF is the basic block in NFV Architecture , Example :• vIMS • vMME • vMSC • vSwitch • vRouter
Os-Ma Orchestration Se-Ma Service , VNF & Infra description
VNF ( Virtual Network Function) EM1
Or-Vnfm EM3
EM2
Ve-Vnfm VNF1 vSMSC
VNF2 vMSC
VM VM
VM
Virtual Compute
Virtual Memory
NFVI
VNF3 vHLR
Memory
Vi-Vnfm
Virtual Network
NF-Vi
Network
•
EM (Element Management) FCAPS of
Application such as Link down , KPI Degradation etc.
VM VM VM
Virtualization Layer
Compute
Or-Vi VNF Manager
NFV Layers
VIM Virtualized Infrastructure Manager
VNF Manager • Life cycle VNFs : • setting up/ • Maintaining • Tearing down • FCAPS of Virtualization and VNF
NFV Architecture TelecomTutorial.info www.TelecomTutorial.info
NFV Management & Orchestration
OSS / BSS
FCAPS Layers
Os-Ma Orchestration
EM • Telecom Virtualized Nodes , Ex : vMSCs
Se-Ma Service , VNF & Infra description
VNF ( Virtual Network Function) EM1
Or-Vnfm EM3
EM2
Ve-Vnfm VNF1 vSMSC
VNF2 vMSC
VM VM
VM
Virtual Compute
Virtual Memory
NFVI
Memory
VNF Manager
VNF3 vHLR
VM VM VM
Vi-Vnfm
Virtual Network
NF-Vi
Virtualization Layer
Compute
Or-Vi
VIM Virtualized Infrastructure Manager
VNF Manager • VNFs
VIM • NFVI ,VMs • Hardware
Network
NFV Architecture TelecomTutorial.info www.TelecomTutorial.info
NFV Management & Orchestration
OSS / BSS
NFV Layers
Os-Ma
Orchestration
NFV Orchestrator (NFVO)
Se-Ma Service , VNF & Infra description
VNF ( Virtual Network Function)
• Key to Automation of SDN & NFV
Or-Vnfm
• Performs :EM1
EM2
EM3 Ve-Vnfm
VNF1
VNF2
Or-Vi VNF Manager
VNF3
• Resource orchestration • Network service orchestration • Global resource management of
Vi-Vnfm Virtual Compute
NFVI
Virtual Memory
Compute
Memory
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• Allocating and scaling resources
Virtual Network
NF-Vi
Virtualization Layer Network
NFVI resources via VNFM & VIM
VIM Virtualized Infrastructure Manager
• Single Orchestrator for NFV service
NFV Architecture
TelecomTutorial.info ETSI Specs
https://docbox.etsi.org/ISG/NFV/Open/Publications_pdf/Specs-Reports
ETSI Specs NFV
NFV TelecomTutorial.info www.TelecomTutorial.info
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Why SDN ?
New Service or Node Virtual Compute Few Seconds
Network Reachability Few Days • • • • • •
IP Allocation Policy Opening Routing changes Bandwidth Allocation End to End Reachability Service testing
VIKAS SHOKEEN
• What is Cloud ? Why Cloud ? • Demystifying Cloud :• NFV • SDN • Hypervisor Vs Container
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Telco Cloud