1. 2014 Colt Technology Services Group Limited. All rights
reserved. Unlocking the potential of NFV & SDN TM Forum Live,
4th June 2014 Nice Javier Benitez Network & Platform Strategy
and Architecture
2. 2 2 Agenda NFV & SDN Definition, Relationship &
Status About Colt Colt Plan: SDN/NFV Developments Summary thoughts
1 2 3 4
3. 3 3 NFV Definition BRAS Firewall DPI CDN Tester/QoE monitor
WAN Acceleration Message Router Radio/Fixed Access Network Nodes
Carrier Grade NAT Session Border Controller PE Router SGSN/ GGSN
Fragmented non-commodity hardware Physical install per appliance
per site Hardware development large barrier to entry for new
vendors, constraining innovation & competition Classical
Network Appliance Approach Network Functions fully defined in SW
(VNFs) VNFs provided by independent software vendors VNFs running
on standard high-volume (COTS) servers, storage and switches
Benefits: Opex & Capex savings, better time to market Network
Functions Virtualisation Approach VNF VNF VNF VNF Software
Functions Standard Servers & Switches
4. 4 4 NFV & SDN Relationship Network Functions
Virtualisation Approach VNF VNF VNF VNF Software Functions / COTS
Servers Standard Switches NFV SDN Software-Defined Network
Functions Standard high-volume servers, storage & switches In
theory could run on top of any network technology (even non-SDN)
Network requirements: real-time dynamic provisioning, seamless
control, openness Software-Defined Networking Separation of control
and data plane to accomplish: elasticity, on-demand,
programmability and scalability SDN ideal underlying network for
NFV Key SDN use cases: VNF Forwarding Graph (service chaining) and
NFVIaaSA B
5. 5 5 Benefits of OpenFlow-Based SDN in the Context of NFV
OpenFlow provides dynamic, automated, open and multivendor
networking connectivity OpenFlow configures in a standard (and
open) way both physical and virtual entities: key requirement for
NFV OpenFlow promotes decoupling of hardware and software, with
industry openness and standards to accelerate innovation which
correlate with NFV principles Server Hypervisor Server Hypervisor
Server Hypervisor A B Network Device Network Device Network Device
ONF Solution Brief:
https://www.opennetworking.org/solution-brief-openflow-enabled-sdn-and-network-functions-virtualization
6. 6 6 Openness and SDN 6 Infrastructure Layer Control Layer
Application Layer Business Applications API Network Services API
API Network Services Open Northbound API Control Layer
Componentization Standard SW Services Platform NFV Open Southbound
API SDN and Mgmt. Applications OSS/BSS ONF SDN Architecture Source:
BrightTalk Webinar: SDN & Openness, Marc Cohn, Apr 17,
2014
7. 7 7 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
8. 8 8 Plan: Colts 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 Feb14 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) Live Nov12 Network Functions Virtualisation (NFV)
9. 9 9 vL3CPE (Internet Access / IPVPN) - Definition Customer
MSP / L2 CPE M-MSP (L2/L3) Gen 4 DC Compute Storage Physical
Compute / Appliance IP/MPLS (Internet/IPVPN) Spine Leaf 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 (in software) Several locations being considered for the
vL3CPE VNF Current Location: L3 PE Main NFV target location: Colt
DC (NFV Platform / SDN Overlay) Optional location in some cities
(e.g. without DC): Colt Node Additional Optional location: L2 CPE
(distributed NFV) vCPEvCPE vCPE vCPE vCPE vCPE vCPE
10. 10 10 Plan: Colts 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 Feb14 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 Nov12 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
Nov13
11. 11 11 Summary - SDN/NFV, an Operator Perspective Reality
check: SDN/NFV maturing, but still early days: ONF / IETF / NFV /
OpenSource core work still in progress (long journey). Most
products today not commercially available, some proprietary
solutions DC SDN overlay solutions are real (Pilot completed,
vendor selected, live deployment Feb14 in Colt) But, too rapid
evolving technology, some proprietary Long term (3-5 year) key
challenges for Operators: How to manage installed base / legacy
technologies (network & OSS) How to avoid closed, vertically
integrated architectures again Critical need for network
visibility/analytics tools for real carrier adoption OpenSource vs
Standarization: Carriers typically not used to OpenSource? Business
transformation challenges cant be dismissed!
12. 2014 Colt Technology Services Group Limited. All rights
reserved. Thank you [email protected] www.colt.net