© Copyright 2006 Glimmerglass. All Rights Reserved. More than just another single point of failure? Optical Switching

© Copyright 2006 Glimmerglass. All Rights Reserved.Agenda Optical Switching What it is What can it do Why you might care

© Copyright 2006 Glimmerglass. All Rights Reserved. The Gartner Hype Cycle TIME VISIBILITY Technology Trigger Peak of Inflated Expectations Trough of Disillusionment Slope of Enlightenment Plateau of Productivity Source: Gartner Group

© Copyright 2006 Glimmerglass. All Rights Reserved. OOO or OEO Photonic (All Optical) Switch – The same photons that go into the switch come out of the switch. Optical Switch – Incoming light is converted to electrical signals for switching. Outputs are converted to new photons for further transmission. Optical Fabric

© Copyright 2006 Glimmerglass. All Rights Reserved. Electrical Optical Switch

© Copyright 2006 Glimmerglass. All Rights Reserved. OEO Benefits & Drawbacks Benefits – It’s the Status Quo – 3R Regeneration – Bandwidth Grooming – Statistical Multiplexing – BER Monitoring Drawbacks – ‘Upwardly Inflexible’ – Bandwidth Scalability – Expensive for high bit-rates – Power & Heat – Latency

© Copyright 2006 Glimmerglass. All Rights Reserved. Photonic Switch

© Copyright 2006 Glimmerglass. All Rights Reserved. OOO Benefits & Drawbacks Benefits – Protocol transparent – Price independent of bit rate – Waveband switching – Small size – Low power consumption – Enhanced performance monitoring Drawbacks – Wavelength Granularity – No Grooming / Bandwidth Management – Control Plane issues – Wavelength collisions – Concatenation of multiple spans – Protocol monitoring

© Copyright 2006 Glimmerglass. All Rights Reserved. OEO vs OOO… Enemies?or Friends!

© Copyright 2006 Glimmerglass. All Rights Reserved.Applications Litmus Test – Lots of fiber – Frequent changes – Current project

© Copyright 2006 Glimmerglass. All Rights Reserved.Applications Circuit Provisioning Topology Migration Circuit Protection Physical Layer Monitoring

© Copyright 2006 Glimmerglass. All Rights Reserved. Network Topology Migration Example: Migrate from a Ring to a Star Goal: Introduce Flexibility to the network – Better accommodate rapid network growth Inter-node bandwidth issues with rings Keep high volume customers at one location Pave the way for future growth – Minimize downtime due to fiber re-configuration – Provide a path to roll back changes – Accommodate 10G customers without swamping the backbone

© Copyright 2006 Glimmerglass. All Rights Reserved. Network Topology Migration 10GE Links Active Link Inactive Link Edge 1 Edge 2 Edge 3 Edge 4 PSW 1 Core 1

© Copyright 2006 Glimmerglass. All Rights Reserved. Network Topology Migration 10GE Links Active Link Inactive Link Edge 1 Edge 2 Edge 3 Edge 4 PSW 1 Core 1

© Copyright 2006 Glimmerglass. All Rights Reserved. Network Topology Migration 10GE Links Active Link Inactive Link Core 1 Edge 1 Edge 2 Edge 3 Edge 4 PSW 1 Core 2 PSW 2

© Copyright 2006 Glimmerglass. All Rights Reserved. Network Topology Migration 10GE Links Active Link Inactive Link Core 1 Edge 1 Edge 2 Edge 3 Edge 4 PSW 1 Core 2 PSW 2

© Copyright 2006 Glimmerglass. All Rights Reserved. Network Topology Migration 10GE Links Active Link Inactive Link Core 1 Edge 1 Edge 2 Edge 3 Edge 4 Core 2 PSW 2 New Core 1 PSW 1

© Copyright 2006 Glimmerglass. All Rights Reserved. Network Topology Migration 10GE Links Active Link Inactive Link Core 1 Edge 1 Edge 2 Edge 3 Edge 4 PSW 1PSW 2 Core 2 New Core 1

© Copyright 2006 Glimmerglass. All Rights Reserved. Network Topology Migration 10GE Links Active Link Inactive Link New Core 1 Edge 1 Edge 2 Edge 3 Edge 4 PSW 1PSW 2 Core 2 10G Router

© Copyright 2006 Glimmerglass. All Rights Reserved. Network Topology Migration 10GE Links Active Link Inactive Link New Core 1 Edge 1 Edge 2 Edge 3 Edge 4 PSW 1PSW 2 Core 2 10G Router

© Copyright 2006 Glimmerglass. All Rights Reserved. STM-64 Protection Improve customer’s perception of the network Reduce the cost impact of unplanned outages – Reduce length of outages for failed line cards – Avoid damage to line cards during rushed replacement – Avoid the need to add staff in remote locations Improve the quality of information available regarding network performance and availability – Enable long-term performance testing of undersea circuits – Remotely monitor network health at the physical layer without interrupting traffic

© Copyright 2006 Glimmerglass. All Rights Reserved. Patch Cords STM-64 Protection Wet DWDM Dry DWDM MUXMUX MUXMUX Tap on Tx Tap on Tx Traffic PSW Monitoring PSW Test Facility 64 λ

© Copyright 2006 Glimmerglass. All Rights Reserved. Network Node Management HOPI – Hybrid Optical Packet Infrastructure – Internet2 facility established in 2005 – New node design, integrating packet and circuit- switched infrastructures HOPI Goals – Create different architectures at all levels of the protocol stack – Gain sufficient experience with hybrid infrastructure to understand next-generation architectures.

© Copyright 2006 Glimmerglass. All Rights Reserved. Router Bypass with HOPI

© Copyright 2006 Glimmerglass. All Rights Reserved. HOPI Node Design

© Copyright 2006 Glimmerglass. All Rights Reserved. Something Different “Photonic Switching is a new class of tool that lets us run our exchange in ways that were not previously possible. With Glimmerglass we have increased our flexibility, availability, reliability, stability and overall performance. Knowing it exists, and what it has done for us, we would never try to run our business without this capability.” -Job Witteman, CEO of AMS-IX BV

© Copyright 2006 Glimmerglass. All Rights Reserved. Contact Information John Taylor Sales & Marketing Director Glimmerglass Europe mobile: office:

© Copyright 2006 Glimmerglass. All Rights Reserved.References Articles&Subsection=Display&ARTICLE_ID= Articles&Subsection=Display&ARTICLE_ID= /Projects/Dec5/10.ppt 06/Projects/Dec5/10.ppt

© Copyright 2006 Glimmerglass. All Rights Reserved. 30% Optical Tap Go Back