Enter NFVRG

An Intro to NFV and its Research Problems

Diego R. LopezTelefonica I+DJuly 2014

Network functions are fully defined by SW, minimising dependence on HW constraints

DPIBRAS

GGSN/SGSN

Firewall

CG-NAT

PE Router

VIRTUAL NETWORK FUNCTIONS

COMMON HW(Servers & Switches)

FUNCTION

CAPACITY

The NFV Concept

(Much) More than an Implementation Technique

• Not simply bringing network functions to (current) clouds or an extension to SDN

• The kind of workloads that NFV implies is completely different to the ones considered in the current cloud practice Evidence suggests the need of applying techniques related to high-

performance computing, like NUMA

• The network has a shape VNFs need to be place and managed according to a global network

view And seamlessly across different (kinds of) datacenters

• NFV deal with networks at two layers The supporting infrastructure already present in the current clouds, The upper network service layer provided by composing VNFs The relationship between NFV and SDN at both layers needs to be

explored

• NFV implies a redefinition of the roles involved in network service provisioning

The New Roles - XaaS for Network Services

IaaS NaaS NaaS SaaS

NFVIaaS

Hosting Service ProviderVNF

VNF

VNF

VNF

VNF

VNF

VNF

VNF

VNF

VNF Tenants

NSP

VNF VNF

VNF

VNF

VNF

VNF Forwarding GraphAdminUser

AdminUser

VNFaaS

User

PaaSPaaS

VNPaaS

NFVIProvider

Counting a Few

• Design patterns Componentization Infrastructure and service function description and programming System wide optimization of compute, storage, network and energy efficiency Infrastructure and service abstractions enabled by virtualization Transition strategies and support for heterogeneous infrastructures

• Orchestration Service chaining automation Autonomous orchestration Big data in the loop Seize the opportunity to simplify systems and processes

• Interstitial security threats Topologies Trusted boot Several identity layers and accounting

• Virtualized network economics and business modeling

What Comes Next

• Gain critical mass to consolidate the NFVRG proposal We hope this meeting will be a solid step towards it

• Define the expected output(s) of the group Beyond becoming a forum for exchanging experiences on applied

research connected to NFV open issues A (set of) document(s) describing the IRTF view(s) and/or contributions to

NFV

• Engage with the NFV community at large Bi-directional relationship with the NFV ISG

at ETSI• Seek for alignment with their

research agenda NFV-related groups in IETF Academia . . .

• Have fun and be goode