Open transmission systems in CESNET2 and CBFs

Lada AltmannováCESNET

www.ces.net

Praha, September 13th, 2010

2CEF Networks Workshop 2010

Author participates on Optical networks activity of CESNET research program and

GN3 project

Presented ideas do not necessarily reflect an official opinion of the GN3, CESNET or any other institution or project.

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Outline

CESNET dark fibresDiverse fibre lines to PoPs (the second first mile)Deployment of our R&D results in CESNET - Multivendor

photonic transmission layerDWDM systems in CESNETOpen DWDM systems deploymentLit fibre serviceCBF connections of photonic transmission layersTransit of lambdas between Cisco and Open DWDM

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CESNET dark fibres

CESNET2 networkDark fibre Experimental Facility (EF)

Nearly 5 400 km leased fibre lines in total (high coverage on 78 864 km2 country) Including more than 1000 km of single fibre lines Including Experimental Facility 760 km of dark fibre

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DWDM systems operational in CESNET2 in 2010

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Physical topology of CESNET2 DF lines

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Example of last miles diversity

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Photonic transmission layer in CESNET2

Multivendor solution allows transition of photonic lambdas thru PoPsCisco DWDM - ONS 15454 MSTPOpen DWDM - based on own open photonic devices called

the CzechLight (CL) family and developed by CESNET

Links for detailed information:http://www.cesnet.cz/doc/2009/zprava/nren.htmlhttp://www.cesnet.cz/doc/2010/networking-studies/

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Transmission systems in CESNET2

Combination of equipment developed for commercial internet services and flexible solution tailored to special needs of R&E network (including economy needs)

Cisco DWDM system8 lines n x 10G1 410 km

Open DWDM system20 lines (5 lines n x 1G plus 15 lines n x 10G)2 660 km

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Lines lighted by Cisco DWDM

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Lines lighted by Open DWDM

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CL deployment history

First CL deployment in the year 2004, specifically CLA PB01 (CzechLight Amplifier 2in1, Booster and Preamplifier) was on Praha – Plzeň line with length of 159km in CzechLight EF and on Praha – Hradec Králové, length of 150km in CESNET2 network.

Since March 2005 CLA DI01 has been successfully working on CzechLight EF line Praha-Brno, 284km, as one and only in-line amplifier.

At the beginning of 2006 CLA PB01 was equipped on the first Cross Border Fibre (CBF) line Brno – Bratislava 182km. In the middle of 2006 CBF Brno – Vienna, 221 km, was deployed by a new prototype CLA PB02.

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Open DWDM deployment up to September 2010

CESNET2 and CBFs Number

of CLALength

(km)

20 lines include as well: 39 2 660

8 single fibre lines 16 905

3 fibre pair of CBF 6 521

CESNET EF Number of CL

devicesLength

(km)

3 lines8 x CLA +

2 x CL VMUX 760

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Lit service on single fibre

Open DWDM advantage : can be used on single fibre lines

Price of single fibre leasing is about 60% of pair of fibres price

Lighting of single fibre is cost effective. We use it to achieve dual access to some PoPs of CESNET2 under available budget

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Lit fibre service

Newly developed types of CL equipments or lit services are tested on Experimental Facility

Tested services developed by CESNET can be ordered as service Our providers of dark fibre and lit fibres services

ČD-Telematika, a.s. České radiokomunikace, a.s. GTS Novera s.r.o. Tűrk Telecom (Invitel International CZ s.r.o.) Sloane Park Property Trust a.s.

Providers have acquired experience with new type of service based on Open DWDM photonic system developed and licensed by CESNET and can offer this new type of service to other customers

CESNET licences for CL family equipment obtained by Optokon Co., Ltd, spol. s r.o. and RLC Praha a.s.

CESNET licences are available for other companies

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CZ-PL border

OstravaCESNET2

Bielsko BialaPionier

71,1 km 18 dBm 43,55 km 8,4 dBm

PSNC fibreSelfservis fibre

Ostrava CZ – Bielsko Biala PLOpen DWDM used for connection of photonic transmission layers

Multivendor solution on CBF – collaboration of CESNET and PSNC PoP Ostrava : Cisco OSR7609 - CESNET PoP Bielsko Biala : Brocade XMR 8000 – PSNC Lit fibre service with using open DWDM system on all line Solution is generally applicable to interconnection of neighbours NRENs or

interconnection of NREN and regional network

Těšín/Cieszyn

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Transition of photonic lambdas between Cisco DWDM and CL DWDM

Implementation of accurate time signal transfer demonstrates the capabilities of photonic networks

Photonic transmission took place on operational lines during Czech-Austrian experiment on March 1 and 2 which compared the time scales of atomic clocks

Transition from Cisco DWDM to CL DWDM was realised in Brno

PrahaCESNET2

BrnoCESNET2

ViennaACOnet

298km221km

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Information about equipment and traffic

Detailed information about open photonics DWDM systems are available in CESNET Technical report on http://www.cesnet.cz/doc/techzpravy

On-line traffic statistics of above mentioned lines with CL equipment up to six months: http://www.cesnet.cz/provoz/zatizeni

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Reliability of CL equipmentBit rates  [bps]

Input bitrate

min=0.000  

max=2.552G  

avr=792.124M  

Output bitrate

min=0.000  

max=3.456G  

avr=1.281G  

One year load of CBF Brno - Vienna author: Tom Kosnar, copyright: © 2004-2009 , CESNET a.l.e

Bit rates  [bps]

Input bitrate

min=12.421M  

max=1.663G  

avr=274.505M  

Output bitrate

min=7.633M  

max=3.656G  

avr=309.706M  One year load of CBF Brno - Bratislava author: Tom Kosnar, copyright: © 2004-2009 , CESNET a.l.e

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Acknowledgement

CESNET colleagues, especially Jan Gruntorád, Václav Novák, Stanislav Šíma, Josef Vojtěch, Jan Radil, Miloslav Hůla, Tomáš Košňar, Vladimír Smotlacha

Thank you for your attention