spreading nfv through the network: the etsi nfv use cases

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GRUPPO TELECOM ITALIA

Spreading NFV through the Network:the ETSI NFV use cases

Open Networking Summit 201404 March 2014

Andrea Pinnola – Telecom ItaliaTechnology Plan and Standard Coordination Team

Open Networking Summit 2014

Spreading NFV through the Network: the ETSI NFV Use Cases

Overview of NFV Use Cases

Telecom Italia - All rights reserved

Can be divided in two logical groups

‘Architectural Use Cases’

• Network Functions

Virtualisation IaaS

• Virtual Network Function ‘aaS’

• Virtual Network PaaS

• VNF Forwarding Graphs

‘Service Oriented Use Cases’

• Mobile core network and IMS

• Mobile base stations

• Home environment

• CDNs

• Fixed Access Network

Note: not in this grouping and order in the Use Case Document



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Service Oriented Use Cases


CoreMobile

Access

Fixed

Access

Mo

bil

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Ed

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Fix

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Ed

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Mobile core network and IMS Elastic, scalable, more resilient EPC

Specially suitable for a phased approach

CDNs Better adaptability to traffic surges

New collaborative service models

Home environment L2 visibility to the home

network

Smooth introduction of residential services

Mobile base stations• Evolved Cloud-RAN

• Enabler for SON

Fixed access network

Offload computational intensive optimization

Enable on-demand access services



Architectural UC: NFV Infrastructure as a Service


NFV IaaS

EPBEPA

EPDEPC

Should permit a Service Provider to fulfill, assure and bill for services delivered

to end users across NFVI’s that are independently administered

EP: End Point



Architectural UC: VNF as a Service


NFV IaaS

VNF

VNF aaS

EPBEPANFA NFB

Permit to access VNFs to perform some kind of service chaining with other

generic network functions

EP: End Point



Architectural UC: Virtual Network Platform as a Service


The VNPaaS provides a larger scale service providing a virtual network rather than

a single virtual network function

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Architectural UC: VNF Forwarding Graphs


Allows composition of VNFs into a Service: a "service chain" is the Network Function

forwarding graph that defines the sequence of NFs that packets traverse

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Benefits & Challenges: Major Release Change


Today: shutting down nodes / modules and changing release (days/ hours)

OLD OLD NEW NEWOLDCha

nge

Cha

ngeNEW

Tomorrow: create new VNF, verify, divert traffic progressively (minutes) delete old

Traffic

OLD NEW

Traffic



Benefits & Challenges : Continuous Delivery


Continuous Delivery:

• No need to wait for major release changes to introduce enhancements

• Enabling A/B Testing of Service Concepts & Service Personalisation

Enterprise

Customer AEnterprise

Customer A

Enterprise

Customer B

Enterprise

Customer B



Benefits & Challenges: Scaling in and out


Your NETWORK at 8:00



Automation is key



Reference to the Official ETSI NFV Public Page


http://www.etsi.org/technologies-clusters/technologies/nfv




THANK YOU

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