© 2014 Colt Technology Services Group Limited. All rights reserved.

Delivering SDN&NFV for the WAN

Ethernet World Congress, Nice 16 Sep 2014

Javier Benitez

Strategy & Architecture

2

2

Agenda

About Colt

NFV use cases

WAN SDN

Summary

1

2

3

4

3

3

Colt – The Information Delivery Platform

• Business customers

only !

• 47,000km EU Fibre

network / 37,000

transatlantic

• 23 countries / 42

metros / 192

connected cities

• 20 Colt owned data

centres / 20,000

connected buildings

• 500+ NNIs /

customers in 79

countries

• MEF / ONF / NFV

Member

4

4

Colt vision: IT & Network Integration

The integration of the network and IT platforms from

the service, technology, system and process point of

view to offer innovative services, reduce

provisioning time, automate end-to-end

orchestration and offer truly combined network and

compute services.

Network

automation,

virtualisation,

elasticity and

rapid innovation

Modular Carrier

Ethernet

Integrated

Networks

Next Gen Data

Centre Fabric

SDN/NFV

SDN/NFV

SDN/NFV

will be the

glue that

binds the

elements

together

Key

elements of

Colt’s IT &

Networking

Strategy

Investment programme

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5

Colt’s SDN/NFV Infrastructure Development

Network

Functions

Virtualisation

(NFV)

DC Fabric &

Network

virtualisation

(CCN)

DC Fabric

• OpenFlow DC Fabric evaluation (2012, not mature enough)

DC Network virtualisation & Architecture:

• SDN Overlay: L2-L4 DC Network Virtualisation & DC Architecture

WAN SDN

Live

Feb’14

6

6

Colt’s SDN/NFV Infrastructure Development

DC Fabric &

Network

virtualisation

(CCN)

DC Fabric

• OpenFlow DC Fabric evaluation (2012, not mature enough)

DC Network virtualisation & Architecture:

• SDN Overlay: L2-L4 DC Network Virtualisation & DC Architecture

WAN SDN

Live

Feb’14

L3 CPE router virtualisation (pre-NFV, PE based)

• virtualisation of the L3 CPE functionality (Internet access / IPVPN)

NFV: Formal Evaluation (RFI) & PoC in 2014

• vL3CPE / vDC Appliances (FW/LB) / vControl Plane (BGP RR)

Network

Functions

Virtualisation

(NFV)

Live

Nov’12

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7

vL3CPE (Internet Access / IPVPN) – Definition

Customer

MSP /

L2 CPE

M-MSP

Gen 4 DC

Compute

Storage Physical

Compute /

Appliance

IP/MPLS

(Internet/IPVPN)

Spine

Leaf

L3CPE

• Traditional Managed L3 services (Internet Access and IPVPN ) delivered with dedicated L3 CPE router

• vL3CPE means removing the L3 CPE router and delivering the functionality as Virtual network Functions

vCPE vCPE

vCPE

vCPE

vCPE

vCPE

vCPE

PRE-NFV

NFV

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8

Pre-NFV vL3CPE: lessons learnt

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9

Lessons learnt

vCPE is complex !!

QoS, NAT, security ??

Engineering

Our enterprise

customers

will not like it !!

Product

Management

I can’t configure this

service !! The process

doesn’t work.

Service

Delivery

I don’t know how

to troubleshoot

this service !!

Service

Operations

Our inventory

tool cannot represent

a virtual CPE …

IT

I can’t design

this service !!

Presales

Our customers

will want a

discount !! Sales

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10

M-MSP

vL3CPE – the NFV chapter

Customer

MSP /

L2 CPE

Gen 4 DC

VNF VNF

Compute

Storage Physical

Compute /

Appliance

VNF

VNF

VNF

IP/MPLS

(Internet/IPVPN)

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2

3

• L3CPE functionality virtualised – Main target location: Colt

DC (NFV Platform / SDN Overlay)

– Optional additional location: L2 CPE (distributed NFV)

• Network Segment 1: – MSP (Ethernet) from

customer to DC

• Network Segment 2 – DC Gen 4: SDN Overlay

– DC Gen 3: traditional Ethernet (Vlan)

– Includes Service Chaining

• Network Segment 3: – MSP (Ethernet) from DC

to L3 service instance on the PE

VNF

VNF

Spine

Leaf

Leaf

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11

vBGP Route Reflector – Definition

Customer

MSP /

L2 CPE

M-MSP

Gen 4 DC

Compute

Storage Physical

Compute /

Appliance

IP/MPLS

(Internet/IPVPN)

Spine

Leaf

Leaf

• Traditional BGP RR (Internet Access and IPVPN ) delivered with dedicated routers – Internet: embedded in IP

Core routers

– IPVPN: dedicated, centralised routers

• vBGP RR means removing the dedicated routers and delivering the functionality as Virtual network Functions

vRR vRR

BGP

RR

BGP

RR

iBGP

iBGP

iBGP

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vBGP Route Reflector – Setup

Customer

MSP /

L2 CPE

M-MSP

Gen 4 DC

Compute

Storage Physical

Compute /

Appliance

IP/MPLS

(Internet/IPVPN)

Spine

Leaf

Leaf

vRR vRR

• BGP RR functionality virtualised – Target location: Colt DC (NFV

Platform / SDN Overlay)

• Network Segment 1 – MSP (Ethernet) from PE/P to

DC

• Network Segment 2 – DC Gen 4: SDN Overlay

– DC Gen 3: traditional Ethernet (Vlan)

– Includes Service Chaining

• BGP Sessions – iBGP sessions both to create

full-mesh as well as to RR clients

• Design

– All Address families in scope: Internet/IPVPN/Multicast/IPv4/IPv6

– Centralised designed (LON/FRA/PAR) both for Internet and IPVPN

iBGP

iBGP

iBGP

1

2

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13

Colt’s SDN/NFV Infrastructure Development

DC Fabric &

Network

virtualisation

(CCN)

DC Fabric

• OpenFlow DC Fabric evaluation (2012, not mature enough)

DC Network virtualisation & Architecture:

• SDN Overlay: L2-L4 DC Network Virtualisation & DC Architecture

Live

Feb’14

L3 CPE router virtualisation (PE based): NLI Project

• virtualisation of the L3 CPE functionality (Internet access / IPVPN)

NFV: Formal Evaluation (RFI) & PoC in 2014

• vL3CPE / vDC Appliances (FW/LB) / vControl Plane (BGP RR)

Network

Functions

Virtualisation

(NFV)

Live

Nov’12

WAN SDN Network (Optical/Ethernet/IP): PoC/Field Trial 2014

• Modular MSP (Integrated L2/L3 WAN Network)

• End to end WAN network abstraction & full automation in a multi-

vendor, multi-layer environment

• Flexible connectivity, i.e., ability to dynamically / on-demand change the

connectivity attributes of the service (BW, QoS profile, etc).

WAN SDN

Live

Nov’13

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14

Building on top of Colt Modular MSP

Colt

MSP

HN PE

Modular MSP

10G ring

1G ringColt

MSP

HNPE

Modular MSP

10G ring

1G ringColt

LDN

Cyan

Customer Customer

Customer Colt OSS/BSS

Phase 1 (Live) : London, Frankfurt, Paris, Amsterdam, Brussels, Madrid, Barcelona,

Hamburg, Berlin, Munich, Dusseldorf

Colt WAN SDN

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SDN Controller

End to end automation

Customer L2/L3 Packet

DWDM Optical

DC Fabric

INTERNET

L2 VM

VM

Colt Orchestrator (Automatic Provisioning Tool)

Virtual L3

CPE

Cloudstack vCD CMS

Colt Data Centre

REST REST

Colt Node

Other NMS (activation, monitoring, reporting, etc)

JBPM

Colt Portal

CLI and vendor specific interfaces

Cyan Blueplanet

(multivendor)

Colt Order

Mgmt System

work in progress

Colt Service

Delivery

Colt

Customers

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WAN SDN: what’s next ?

• DC Network virtualized, but WAN remains static

• Next step (PoC/Field Trial) to bring SDN to the WAN (L1/L2/L3) : WAN virtualisation – Flexible connectivity

– Dynamic / On-demand connectivity attributes (BW, QoS profile)

– WAN Network abstraction (multi-vendor, multi-layer)

– In-life service-type change

• Both DC and non-DC WAN scenarios: – Cloud Inter-DC (data & storage)

– Enterprise to DC (Public / Private Cloud)

– Enterprise to Enterprise Optical & Carrier Ethernet VPN

• WAN SDN overlay solutions seem current realistic approach (several models): – OpenFlow (with transport extensions if needed) agents in WAN network devices: standard API

for configuration & monitoring

– Alternative: classic protocols (SNMP, etc) plus OF agent at the SDN controller

– Existing transport control planes available (RSVP-TE, GMPLS, etc) for overlay solutions

– A mixed set of models (Overlay/Hybrid/OSS-based) to be analysed

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Bandwidth Quality of Service

Eth/IPVPN Portal

API

Service Console and

Dashboard (SCAD)

Optical/EPN/IP/DC fabric

SDN controller

WAN as a Service

New connections/

Bandwidth/QoS change/

In-life hybrid networking

Customer Use Cases (1)

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Virtualised Appliances and

App Store

Elastic bandwidth for

infrequent applications

API

(orchestrator)

EPN/IP/SDN

Customer Use Cases (2)

EPN/IP/SDN

Virtual appliance App Store

VM

VM

VM

VM

Cloud services

SDN controller

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Summary

• SDN and NFV technologies are maturing - few products are GA (but typically 1.x)

• Consider the business transformation challenges !!

• We have delivered

– Data Centre SDN overlay

– Modular MSP with SDN automation

– Pre-NFV vL3CPE

• Coming next:

– NFV RFI & PoC (2014): vL3CPE / vLB / vFW / vRR

– WAN SDN PoC/Field Trial (2014): L1 Optical / L2-L3 Packet / Inter-DC

© 2014 Colt Technology Services Group Limited. All rights reserved.

Thank you

www.colt.net

javier.benitez@colt.net