Lit fibre service

Lada AltmannováCESNET

www.ces.net

Praha, September 19th, 2007

Lit fibre service

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Author participates on Optical networks activity of CESNET research program,

Cross Border Fibre of GN2 and Phosphorus project.

Presented ideas do not necessarily reflect an official opinion of the GN2, CESNET or any other institution or project.

Lit fibre service

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Lit fibre service is not used frequently now For example, Lit fibre service was asked as one of possible types

in Initial procurement for GN2 project: „Tenderers are expected to provide, manage and maintain all the necessary dark fibre and associated transmission equipment (i.e. all in-line and end-terminal equipment) for some number of wavelengths“, see http://ted.publications.eu.int/udl?REQUEST=Seek-Deliver&LANGUAGE=en&DOCID=213278-2003

No such service was used for GN2 and is not asked in re-procurement now.

Situation is different if REN uses open photonics lighting (like CESNET)

Open photonics lighting was suggested also as one alternative for Porta Optica Study beneficiary countries.

Lit fibre service is potentially interesting for all RENs.

Lit fibre service

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Porta Optica Study (POS)Distributed Optical Gateway to Eastern Europe (Feb 06 – Jul 07)

FP6 IST program type SSA (Special Support Action) Beneficiary countries (represented by NREN or

CEEnet): Armenia, Azerbaijan, Belarus, Estonia, Georgia, Latvia, Lithuania, Moldavia, Ukraine

Supporting partners were CESNET (Czech Republic), GRNET (Greece) and PSNC (project leader, Poland)

Deliverables are available on http://www.porta-optica.org/

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Main POS results concerning dark fibres

Proposals are based on user requirements and on fibre owners and fibre constructors offers

Dark fibre connections proposed for acquirement by NREN in 1-5 years are dotted

Supposed contracting methods are Leasing, Buying, IRU, Co-ownership

Real deployments depend mainly on national funding of NRENs

CBFs are highly requested by NRENs

Lit fibre service

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Dark fibres for RENs in Europe

Lit fibre service

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Annual fibre costs for RENs Annualized cost of fibre acquiring – the biggest part of NREN

budget Usual values are between 0.1 and 1 E/m/y Initial assumptions in some POS countries:

Armenia 0.38 – 0.40 E/m/y constructed

Estonia 0.53E-0.88 E/m/y lease Latvia 1.32 or 6.0 E/m/y lease or purchase Lithuania 0.31-0.70 or 0.22 E/m/y lease or purchase Moldova 0.74-0.80 or 0.29 E/m/y lease or construction Ukraine 0.29-0.31 or 0.28 E/m/y lease or construction

CESNET examples: 0.1 – 0.5 E/m/y – pair of fibres (fibre lengths from 30 km to 323

km) 0.3E/m/y – one fibre (fibre lengths from 34 km to 126 km)

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Why lit fibre service – Motivation Extended deployment of new photonics devices

prepared by CESNET – technology transfer to telco providers

Some NRENs has no staff experienced in optics and electronics

Service buying instead of investment (OPEX instead of CAPEX)

Full fibre capacity dedicated for NREN! (no return to traditional telco services)

Costs of adding lambdas (or other extensions) should be part of contract

New service type development by provider Obtain and evaluate experience

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Used procedure Initial analysis of feasibility in CESNET Discussion about feasibility with 5 dark fibre providers Selected 4 lines previously leased as dark fibre from 2

providers Call for upgrade of leased fibre service to lit fibre

service for relevant DF line providers NDA Negotiation about project and contract with one provider

per line

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DWDM operational in 2007 and plans

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Used procedure cont.Project of fibre lighting Project can be prepared by NREN staff or by independent company Informal project examples for similar lines are available in

Networking Studies 2007 (Selected technical reports on http://www.cesnet.cz/doc/2007/networking-studies/)

Václav Novák, Josef Vojtěch : Deployment of a DWDM System with optical Amplifiers in the CESNET2 Network

Contracts in CESNET Project of fibre lighting is part of contract Upgrade of current leased fibres Service and maintenance By equipment proposed by CESNET experts Equipment isn't CESNETs property

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RESULTS Enough time for project preparing and negotiation is

necessary Different lighting was used: 2 lines with CLAs and 2

lines with CISCO amplifiers Main equipment:

- Cisco ONS 15454 MSTP amplifiers

- CLA PB01, Fibre Bragg gratings After implementation and testing, 4 upgraded lines are

running without problems from April and June 2007 Projects were successful and can be repeated

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Acknowledgement

CESNET colleagues, especially Jan Gruntorád, Václav Novák, Josef Vojtěch and Stanislav Šíma

Thank you for your attention