Delivering Carrier Ethernet SDN

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

Delivering Carrier Ethernet SDN

Network Virtualization & SDN world Mirko Voltolini VP Technology and Architecture

@mvoltoli

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Agenda

About Colt

NFV use cases

WAN SDN

Summary

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Colt – The Information Delivery Platform

•  46,000km EU Fibre network / 37,000 transatlantic

•  23 countries / 41 metros / 192 connected cities

•  20 Colt owned data centres / 19,800 connected buildings

•  500+ NNIs / customers in 79 countries

•  MEF / ONF / NFV Member

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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/NFVwill be the glue that binds the elements together

Key elements of Colt’s IT & Networking

Strategy

Investment programme

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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

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DC Fabric & Network




WAN SDN

Live Feb’14

L3 CPE router virtualisation (pre-NFV, PE based) •  virtualisation of the L3 CPE functionality (Internet access / IPVPN)

NFV: PoC and deployment in 2014 •  vL3CPE / vDC Appliances (FW/LB) / vControl Plane (BGP RR)

Network Functions

Virtualisation(NFV)

Live Nov’12

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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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Pre-NFV vL3CPE: lessons learnt

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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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M-MSP

vL3CPE – the NFV chapter

Customer

MSP / L2 CPE

Gen 4 DC

VNF VNF

Compute Storage


VNF

VNF

VNF


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•  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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vBGP Route Reflector – Definition

Customer

MSP / L2 CPE

M-MSP

Gen 4 DC

Compute Storage



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



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

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DC Fabric & Network




Live Feb’14

L3 CPE router virtualisation (PE based): NLI Project •  virtualisation of the L3 CPE functionality (Internet access / IPVPN)

NFV: Formal Evaluation & 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): •  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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Building on top of Colt Modular MSP

Colt MSP

HN PEModular MSP

10G ring

1G ring Colt MSP

HNPEModular 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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Carrier Ethernet SDN automation

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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 (research mode) 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 & configuration –  Alternative to manage OF agent at the SDN controller plus other classic protocols (SNMP, etc) –  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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Carrier Ethernet SDN

Customer

Colt Data Centre

Colt Node L2/L3 Packet

DWDM Optical

Colt Node

Customer

Colt Data Centre

DC Fabric DC Fabric

INTERNET L3

L2

L1

L2 L3

L1

VM

VM

VM

VM

Customer

DC/WAN Network SDN Controller

Colt Orchestrator / Business Application

Cloud Controller DC Fabric L2/L3 Optical

DC/WAN Network SDN Controller Compute Storage

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Carrier Ethernet SDN

Customer

Colt Data Centre


DWDM Optical

Colt Node

Customer

Colt Data Centre

DC Fabric DC Fabric

INTERNET L3

L2

L1

L2 L3

L1

VM

VM

VM

VM

Customer

DC/WAN Network SDN Controller




Virtualized Carrier Ethernet Network

DC-DC Carrier Ethernet Circuit Per-Hop OpenFlow Provisioned

Enterprise-DC Carrier Ethernet Circuit Per-Hop OpenFlow Provisioned

Enterprise-Enterprise Carrier Ethernet VPN Per-Hop OpenFlow Provisioned

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Optical Network SDN

Customer

Colt Data Centre


DWDM Optical

Colt Node

Customer

Colt Data Centre

DC Fabric DC Fabric

INTERNET L3

L2

L1

L2 L3

L1

VM

VM

VM

VM

Customer

DC/WAN NetworkSDN Controller




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Optical Network SDN

Customer

Colt Data Centre


DWDM Optical

Colt Node

Customer

Colt Data Centre

DC Fabric DC Fabric

INTERNET L3

L2

L1

L2 L3

L1

VM

VM

VM

VM

Customer

DC/WAN NetworkSDN Controller




Virtualized Optical Network

DC-DC Optical Circuit GMPLS provisioned Enterprise-DC Optical Circuit

GMPLS provisioned

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Cross domain WAN SDN Overlay

L2/L3 OTS

L2/L3 OTS

L2/L3 OTS

L2/L3 OTS

WDM OTS

WDM OTS

WDM

WDM

L2

L2

L2

L2 Implicit

Provisioning (GMPLS)

NMS Provisioning

Explicit Provisioning

L2/L3 Packet

Optical Legacy Ethernet

SDN Controller

Legacy Ethernet NMS

Topology Export (JSON/XMPP): •  Node, link, resource •  MPLS/BGP/GMPLS, etc

Provisioning (OpenFlow) -  Set up circuit from X to Y with BW X

Business Orchestrator

NMS integration (API)

Set up circuit from A to B With 1Gbps Bw

A B

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Summary

•  SDN and NFV technologies are maturing - many 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:

–  vL3CPE / vLB / vFW / vRR PoC and deployment (2014) – WAN SDN: L1 Optical / L2-L3 Packet / Inter-DC

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

Thank you

www.colt.net @mvoltoli