Transport Architecture Chris Liou Infinera JRA1 T1/T2 Workshop - - - PowerPoint PPT Presentation

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Transport Architecture Chris Liou Infinera JRA1 T1/T2 Workshop - - - PowerPoint PPT Presentation

Evolution of Core Transport Architecture Chris Liou Infinera JRA1 T1/T2 Workshop - Copenhagen November 20 2012 1 | Infinera Confidential & Proprietary Infinera Futures Disclaimer The Parties acknowledge and agree that the


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Evolution of Core Transport Architecture

Chris Liou – Infinera JRA1 T1/T2 Workshop - Copenhagen November 20 2012

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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

  • ptics

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

cliou@infinera.com