SDN and Connect

Application of SDN to management

of communications networks

Willie Donnelly

Service & Infrastructure Network Interaction

• New Generation Networks• New Generation Networks will need independent virtual service networks that interact

with the ever increasing and heterogeneous infrastructure networks (e.g. wireless networks, optical networks, sensor networks, nanoscale networks)

• Service Networks interlinks infrastructure networks to end users

Service Managementlayer

Infrastructure layer

Media Content Service

Multimedia multi-channel server

Web server Content Management Server

DynamicRouting

Sensors PGPG

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Schools Government

Hospitals

Personalised Space

Cell

Nucleus

Cell

Nucleus

Cell

Nucleus

Cell

Nucleus

Cloud Challenges

Enterprise

Federation

Data Replication and Integrity

Service Configuration and Replication

Service scalability and replication

Client Aware

Identity ManagementTrust

Privacy

4

Services

• Open, virtualized, and programmable networks

• More sophisticated range of abstractions, end-to-end

• Multi-stakeholder service environment

• Decentralised trust management

• Example areas:

– streaming media services

– M2M services

5

Networks

• Heterogeneous substrate to be shared by multiple

virtual operators offering specialised services

• Scalable and distributed virtualisation techniques

• Joint optimizations between services, the network

and the devices/nodes

• Network monitoring techniques and post-

deployment tools

Key research themes for Connect

smart sensorsmicroelectronic circuits

RF design

energy harvesting strategies

antennas

thermal strategiesoptical technologies

PHY layer signal processingsoftware/cognitive radio platforms

optical architecturesoptical/wireless interface

cognitive networkingvirtualization techniques

wireless/mobile architectures

network optimizationnetwork performance monitoring

mobile servicescloud services

spectrum management

privacy/security servicesservice platforms

Audio-visual media processingM2M/D2D applications

cyberphysical systems

PHY layer monitoring

sensor networks

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Media Rich Applications

1

2

3

The Range of Expertise in the Centre

Responsive Things

Service-Aware NETWORKS

Network-Aware SERVICES

Connect Workpackages

Software-defined networking

• Challenge of providing end-to-end QoS across networks

• Need to consider service aware networks

– resource optimisation

– Income generation

• Ubiquitous wireless networks as access is the future

• Need to rethink the management of wireless access

• How to optimise a finite resource – build business model

– Traffic offload Vs Income generation

Wireless access as a services

Wireless Virtualisation

• The ongoing convergence of the cellular and WiFi

networks, and the use of much smaller cells, is likely to

be a key driver for wireless virtualisation.

• The need is for ubiquitous virtualization of both wireless

and fixed networks.

• Need to create a flexible pool of resources belonging to

a diverse range of players and hardware technologies

service-aware networks / network-aware services.

Service Adaptation: Harnessing a Programmable Network Substrate

• Creation of a programmable network substrate

– allows services directly configure network resources, data-plane functionality

and distributed management processes

– a need to assess what abstractions of the network state provide the best trade-

off between flexibility and implementation complexity for a range of service

class

• developing a suite of network metrics that are sufficiently detailed to

allow services assess the most appropriate adaptation actions to take

given the current network state.

– the use of techniques such as Header Space Analysis to identify potential

alternative routes between network endpoints and collect measurements such

as effective bandwidth and available bandwidth to inform adaptation decisions

Service Adaptation: Harnessing a Programmable Network Substrate

• develop a suite of network configuration primitives that

services can use to effect changes in network behaviour

– Need allow significant configurability while ensuring reusability

of primitives

– network abstractions focus on ensuring service Quality of

Experience

• delegating the detailed tasks of managing resources on

an end-to-end basis to the underlying network substrate.

Programmable Network Substrate

• Focus on the development of service platforms

focused on specific domains

• How can SDN and Virtualisation be applied to the

emerging Internet of Thinks (IOT) environment

• Connect believes that IOT is integral part of the

communications network.

• Need to understand how best to manage the

integration of IOT service platforms to Internet

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Internet of Things

• 50B connected devices by 2020.

• Cost effective, optimised devices

• Energy harvesting/management

• Low cost service interface

• Multiple (propriety and non propriety)

communications protocols.

• Non Predictive traffic flows.

• Network needs to distinguish

between critical and no critical real-

time traffic.

• Resource discovery

• Resource discovery and optimisation

• Need to intelligently route traffic and use

underutilized network resources.

• Need to eliminate bottlenecks and induce

efficiencies to help the data generated by

IoT to be processed without placing a

larger strain on the network.  .

• Need to minimise the energy overhead of

data transmission.

• Need to consider security requirement for

IOT networks

• Ability to combine information from

multiple IOT sources .

SDN is a logical choice for managing IOT

environments

TSSG in CONNECT

SDN for traffic management in DCs

Resource orchestration in DCs

Monitoring of NFV deployments

Analytics for managementof enterprise applications

SDN for E2E service management

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Summary

Connect provides ideal environment

for industry – academic collaboration on SDN

Balanced between scientifically driving platform research (new scientific solutions)

and

application driven targeted projects (addressing technological bottlenecks)