The document discusses the ETSI NFV use cases as presented by Telecom Italia at the Open Networking Summit 2014, categorizing them into architectural and service-oriented use cases. It emphasizes the advantages of Network Functions Virtualization (NFV) such as scalability, continuous delivery, and service personalization, along with the challenges and benefits of transitioning to this technology. Additionally, it outlines various NFV architectures including IaaS, VNF as a Service, and VNF forwarding graphs.

3. GRUPPO TELECOM ITALIA
Spreading NFV through the Network:
the ETSI NFV use cases
Open Networking Summit 2014
04 March 2014
Andrea Pinnola – Telecom Italia
Technology Plan and Standard Coordination Team

4. 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

5. Open Networking Summit 2014
Spreading NFV through the Network: the ETSI NFV Use Cases
Note:FiguresfromETSIdocumentGSNFV001
Service Oriented Use Cases
Telecom Italia - All rights reserved
Core
Mobile
Access
Fixed
Access
Mobile
Edge
Fixed
Edge
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

6. Open Networking Summit 2014
Spreading NFV through the Network: the ETSI NFV Use Cases
Architectural UC: NFV Infrastructure as a Service
Telecom Italia - All rights reserved
NFV IaaS
EPBEPA
EPD
EPC
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

7. Open Networking Summit 2014
Spreading NFV through the Network: the ETSI NFV Use Cases
Architectural UC: VNF as a Service
Telecom Italia - All rights reserved
NFV IaaS
VNF
VNF aaS
EPBEPA
NFA NFB
Permit to access VNFs to perform some kind of service chaining with other
generic network functions
EP: End Point

8. Open Networking Summit 2014
Spreading NFV through the Network: the ETSI NFV Use Cases
Architectural UC: Virtual Network Platform as a Service
Telecom Italia - All rights reserved
The VNPaaS provides a larger scale service providing a virtual network rather than
a single virtual network function
Note:FigurefromETSIdocumentGSNFV001

9. Open Networking Summit 2014
Spreading NFV through the Network: the ETSI NFV Use Cases
Architectural UC: VNF Forwarding Graphs
Telecom Italia - All rights reserved
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
Note:FigurefromETSIdocumentGSNFV001

10. Open Networking Summit 2014
Spreading NFV through the Network: the ETSI NFV Use Cases
Benefits & Challenges: Major Release Change
Telecom Italia - All rights reserved
Today: shutting down nodes / modules and changing release (days/ hours)
OLD OLD NEW NEWOLD
Cha
nge
Cha
nge
NEW
Tomorrow: create new VNF, verify, divert traffic progressively (minutes) delete old
Traffic
OLD NEW
Traffic

11. Open Networking Summit 2014
Spreading NFV through the Network: the ETSI NFV Use Cases
Benefits & Challenges : Continuous Delivery
Telecom Italia - All rights reserved
Continuous Delivery:
• No need to wait for major release changes to introduce enhancements
• Enabling A/B Testing of Service Concepts & Service Personalisation
Enterprise
Customer A
Enterprise
Customer A
Enterprise
Customer B
Enterprise
Customer B

12. Open Networking Summit 2014
Spreading NFV through the Network: the ETSI NFV Use Cases
Benefits & Challenges: Scaling in and out
Telecom Italia - All rights reserved
Your NETWORK at 8:00
Your NETWORK at 20:00
Your NETWORK at 12:00
Automation is key

13. Open Networking Summit 2014
Spreading NFV through the Network: the ETSI NFV Use Cases
Reference to the Official ETSI NFV Public Page
Telecom Italia - All rights reserved
http://www.etsi.org/technologies-clusters/technologies/nfv

14. Open Networking Summit 2014
Spreading NFV through the Network: the ETSI NFV Use Cases
Telecom Italia - All rights reserved
THANK YOU
andrea.pinnola@telecomitalia.it