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1 | Infinera Confidential & Proprietary
Evolution of Core Transport Architecture Chris Liou – Infinera
JRA1 T1/T2 Workshop - Copenhagen
November 20 2012
2 | Infinera Confidential & Proprietary
The Parties acknowledge and agree that the information set forth herein (the “Future Information”) is provided to the recipient for informational purposes only and that any dates accompanying Future Information is provided as target dates only. The Future Information is intended to outline our general product direction and it should not be relied on in making a purchasing decision. Additionally, the Future Information is not a commitment, promise or legal obligation to deliver any material, code or functionality. The development, release and timing of any features and functionality described for our products remains at Infinera’s sole discretion.
There shall be no remedy or recourse by recipient against Infinera if Infinera fails to deliver such Future Information in accordance with the target dates or at all. The Parties acknowledge and agree that any purchase of Infinera equipment by the recipient of the information is not at any time coupled with or conditioned upon Infinera’s delivery of Future Information and that there is no intention to require Infinera to provide Future Information. The recipient acknowledges and agrees that, with regard to any equipment purchased from Infinera by Recipient, the lack of Future Information does not adversely affect the recipient’s ability to benefit from such equipment in a manner consistent with its intended use. The Parties further acknowledge and agree that to the extent Future Information is developed in the future by Infinera and made available to recipient, any purchase thereof by recipient would be subject to separate negotiation as to any terms and conditions. No such terms and conditions have been agreed to date.
Infinera Futures Disclaimer
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Increasing capacity growth leads to super-channels • Bandwidth services ≠ Wavelength rates
• Decoupling services from wavelengths necessary to maximize flexibility
CapEx pressures forcing platform convergence • Simpler networks, fewer silos
Bandwidth services often unpredictable • Flows increasing in size
Cost/switched-Gb for Transport still << IP • Conventional IP/Optical approach yields sub-optimal utilization
• Ample opportunity to re-architect network using switched transport
True control plane interoperability remains elusive
What is Happening in the Core? Dynamics & Observations
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Need to Re-architect the Network
IP/MPLS
Data Center
Service Provider Network
Complex Layers of devices, connections, resources, operations
SONET SDH OTN
DWDM
Multiple Layers in
Silos
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“Everything-over-IP” approach is over-burdened • Service termination + switching + grooming + transport + protection +…
• Optical transport relegated to transmission only
Control plane “locks” service into router platform
No cross-stratum communication
Reactive network planning is de facto pratice
PMO Network Architecture Unscalable “All eggs in one basket”
$Cost of BW
IP
OTN/Pkt
Opt
Services Tied to
Control Plane
Domain 1 Domain 2 Domain 3
IP
Dumb optics
Cntrl plane Cntrl plane Cntrl plane
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Create network slices between dozens of data centers and millions of users…
Provision network connections over multi-domain packet, optical and LTE networks over the most optimal path automatically…
Roll out new services to users located anywhere in a matter of minutes…
Manage and change of VPN’s, SLA’s, firewalls and switches without a single truck roll…
Support network operating systems & databases, inventory, status at real time, auto provisioned, self monitoring…
How can this be achieved with minimum total network cost?
What if it were possible to …
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Scalable bandwidth where/when needed
Minimize OpEx through
Automation
Multi-layer, Multi-domain,
Multi-vendor
Max efficiency, performance, sharing, @min OpEx
Key Challenges in the Core
Core Network Network
Virtualization
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An Infinite Pool of Intelligent Bandwidth
Massive WDM Capacity
Virtualized & Flexible
Automated & Reliable
Converged & Optimized
Vision for the Optical Core
Can Bandwidth follow computing & evolve into an on-demand utility?
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Scalable, flexible optical transmission capacity • 100G, FlexCoherent, super-channels
Flexible & rapid turn-up of capacity • Capacity-with-a-click and Bandwidth-on-demand
Multi-tiered transport switching • Optical switching (wavelengths, super-channels, FlexGrid)
• Sub-wavelength (digital) for grooming onto carriers (packet, OTN)
Multi-layer, multi-domain, multi-vendor control plane • SDN’s concept of logically centralized topology may be key
• Integrated protection/restoration schemes
Automation protocols & programmable APIs • GMPLS coexistence with SDN
Key Ingredients of Vision Architecture
Convergence is essential for simplifying the network
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Optical Bandwidth
Management
Digital Bandwidth
Management
• Flexible ROADM capabilities
‒ Super-channels, wavelengths ‒ FlexGrid ‒ Configurable capacity/reach ‒ Optical restoration
Digital Bandwidth Management
400/500Gbps and 1 Tbps super channels
Core Packet
Switching
•Hybrid circuit/packet switching
•Scalable non-blocking switching
•Multiple protection/restoration schemes
•Dedicated
•Shared Mesh Protection
Multi-Tb OTN
Switching
Optical Bandwidth Mgmt
Hierarchical Bandwidth Management Architecture
Hybrid switching maximizes efficiency & flexibility.
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IP/MPLS
SONET SDH OTN
DWDM
IP
MPLS
Economics Drive Platform Convergence in Core
Phase 1 Status Quo
Converged OTN/DWDM
IP
Phase 2
Converged MPLS/OTN/DWDM
(future)
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Applications Rapid & Flexible Bandwidth
• Turn-up bandwidth quickly to support applications
Simplify/Automate Operations
• Multilayer, multivendor & multi-domain orchestration
Efficient Resource Utilization
• Coordinate & optimize between layers, select optimal path
Speed New Service Deployment
• Services created faster w/direct API access to transport
Extending SDN to Transport:
Applications
SDN Controller
Bandwidth Abstraction
Discover, Monitor, Control
• Multi-layer • Multi-vendor • Multi-domain
Packet flows OTN circuits
Optical wavelengths
Physical Resources
ONF on-going efforts around definition of Open Transport Switch.
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Conventional IP architectural approach does not scale • Router Cost/bit efficiencies not materializing
• Over-provisioning methodology Excessive unutilized capacity
Emerging advances in optical transport layer present new level of flexibility & agility • Scalable WDM with integrated digital/optical switching
• Elastic bandwidth can play significant role in router offload & bypass
Multi-layer, multi-vendor, multi-domain complexity has alternative approach • SDN key concepts gaining momentum, but niche applications
• SDN extension to transport in process – abstraction is key!
Summary
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Thank You [email protected]