cef networks3ext

8/3/2019 CEF Networks3ext

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Research Department Workshop on CEF-Networks www.ces.net

Procurement and lightingof dark fibre

Lada Altmannova

Stanislav Sima

Prague May 25th, 2004


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fibre2


Main changes in REN design

q Traditional building elements (procured): datatransmission services, routers, terminals, etc.

q Traditional network function: provide best effort IP

connectivityq New building elements: dark fibres, optical

transmission equipment, switches

q New network function: provide E2E circuits

q Multi-vendor networking for feasibility (in multipledomain) and cost effectiveness (in single domain) standards, MSA, etc. are needed. This is similar as oncircuit and computer system design level.


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Dark fibre deployment in RENs

q Increasing and world-wide deployment of dark fibre(acquisition of dark fibres instead of SDH or lambdaservices) without moving back

q Lease of fibres: 0.4 0.5 Euro/m/pair/year, includingmaintenance

q Discounts on long term lease, disadvantages of IRU(prepayment, taxes and bankruptcy)

q Increasing number of customer premises connected by

fibre: to achieve this is more difficult problem than intercityfibre procurement

q Building first mile fibre lines: about 30 Euro/m for 12strand cable, 6 month in ground


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CEF network architecture will be new

q Prefer network architecture withNIL (single span) linesand without overlaying (concurrent) fibres

q KIS rule for fibres: Keep It Short, includingconnections crossing state borders

q

Realization of lambdas by own equipment and fibres forlong distance data transmission

q Search actively for new fibre providers (railways,highways, power distribution companies, fuel

distribution companies, gas distribution companies,cable TV companies, etc.)

q Search actively for regional authorities and local boardscooperation on laying first mile fibre cables


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How to go from telco services to dark fibres

q Procure dark fibre before lambdas procurement

q Procure your first dark fibre line ASAP to acquire experience (toavoid staff fear of: maintenance, service, lighting fibre,management of in-line equipment, costs, manpower, etc.)

q Do not relay on one provider only, maintain concurrency (forprice and for first mile acquiring)

q If price is not excellent, use annual contracts and re-procurement

q If dark fibre line is not offered but exists, use annual contract for

lambda(s) and re-procure dark fibreq Prefer remote management of in-line equipment with local

assistance of service company (no managed dark fibre servicefrom ISP)


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We need non-expensive fibre footprintq

KIS: Connect dark fibres used by NREN by a shortcross-border fibre lines (called also Near overBorder - NoB)

q Use WDM equipment on national and cross-border

fibres for implementation of lambdas between GN2PoPs/end users

q This KIS approach avoids double payment of fibresor lambdas (parallel lines are paid by NREN and

DANTE), in the biggest item of budgetsq Such change of networking strategy is difficult,

feasibility study and testbeds are needed


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Lighting of dark fibre: NIL approach

q Production lines G.652, 1550 nm, EDFA

189 km Praha Pardubice GE since May 2002

235 km Brno Ostrava GE since June 2003

q Experimental lines G.652, 1550 nm, EDFA

235 km Brno Ostrava OC-48 June 2003

286 km Praha Brno GE May 2004 (+Raman)

q More wavelengths possible


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Dark fibre lighting register: see before new line design

Country A B km

Attenuation

(dB at 1550nm) Fibre/Pair Planed

Experi-

mental Operational Transmission Equipment

CZ Praha Brno 285,8 66,7 Pair X

2x Keopsys 27 dBm+Raman laser +optical

filter, CGBIC

CZ Praha Plze 159,4 36,7 Pair X EDFA 2in1 booster 17 dBm+preamplifier -10dBm+optical filter, 2x GBIC ZX

CZ Praha Brno 326,7 81 Pair 10.1.2000 3x ONS15104CZ Praha Liberec 200 Pair XCZ Praha Pardubice 188,6 46,03 Pair 17.5.2002 Keopsys 2x 21 dBm, 2x GBIC ZXCZ Praha Plze 123 33,72 Pair 3.9.2003 Keopsys 2x 10dBm, POS LR 2,5GCZ Praha st n.L. 155,3 36,8 Pair 6.12.2003 Catalyst switch in line, 2x CGBICCZ Brno Olomouc 107 27,5 Pair 25.11.2003 2x CGBIC

CZ Brno Ostrava 235,4 50,55 Pair 6.6.2003 Keopsys 2x 27dBm+2x 10dBm+2x CGBIC

CZ .B. Brno 307,9 69,76 Pair 15.9.2003Keopsys 2x 27dBm+2x 10dBmin line, POSLR 2,5G

CZ .B. Plze 178,3 40,78 Pair 25.7.2003 Keopsys 2x 24dBm, POS LR 2,5GCZ Olomouc Hradec K. 197,4 42,96 Pair 1.2.2004 Keopsys 2x 27dBm, POS LR 2,5GCZ Olomouc Ostrava 189,8 43,51 Pair 1.2.2004 Keopsys 2x 27 dBm, 2x CGBICCZ Olomouc Zln 71,5 22,46 Pair 19.2.2003 2x CGBICCZ Pardubice Hradec K. 30 7,5 Pair 15.1.2002 2x GBIC ZXCZ st n L. Liberec 123 26,23 Pair 30.6.2003 2x CGBIC

CZ .B. J. Hradec 70,7 18,41 Fibre 17.8.2003 MRV 2x EM 316WFC/S4 & WFT/S4, 40-100km

CZ Ostrava Karvin 76,7 20,27 Fibre 24.7.2003MRV 2x EM 316WFC/S4 & WFT/S4, 40-100km

CZ Ostrava Opava 49,9 18,22 Fibre 26.3.2003MRV 2x EM 316WFC/S4 & WFT/S4, 40-100km

CZ Plze Cheb 126,5 35,65 Fibre 16.7.2003MRV 2x EM 316WFC/S5 & WFT/S5, 40-

125km

CZ st n L. D n 34 8,6 Fibre 1.7.2003MRV 2x EM 316WFC/S3 & WFT/S3, 20-50km


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NIL tests in laboratory

q G.652 fibre spools, EDFA + Raman:

325 km GE

250 km OC-48

252 km 2x 10 GE290 km 10 G DWDM

q G.655 fibre spools (recently delivered):

testing

lower cost of dispersion compensation on 10 Gbps


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Let us introduce: PC Lightq Design Kit for wide area fibre networks, based on

racked PCs with build-in optical amplifier modules

q Multi-vendor (multi-source) building elements

q Preliminary comparison of OA (EDFA) costs:

OA from ISP vendor: 40 000 USD OA from optical vendor: 18 000 USD

OA from module vendor: 2 500 USD (two OA in module)

OA from Integrated Circuit vendor: ??? (forthcoming)

q OA costs are the biggest item in long distancetransmission systems costs (e.g. 60%)

=> PC Light helps to radically change WAN/MAN costs


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EDFA 2in1: PC Light equipment example

q PC with build-in OA EDFA booster and preampq Successfully used for NIL GE connection from Plzen

to CzechLight in Prague by dark fibre pair (159.4 km,36.7 dB) since May 2004

q One Side Amplification (OSA NIL approach): thisequipment is placed in Prague only. No OA equipmentis placed in Plzen, so we expect lower service costsand higher availability (we have 24/7 staff in Prague

only)q Advantages: low cost, low size (1U), low power

consumption, Linux, SNMP, reach up to 225 km,possibility of development, .


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EDFA 2in1: EDFA Module in Standard 1U PC with Linux

Alarm

LEDs

BO IN

IDE +5V DCRS 232

PA OUT

BO OUT

FERS232C

USB * Network boot is also possible

PA IN

MicroATX

MainBoard withfanless CPU

Power

Supply

Flash

disc*

Low NF preamplifier

Booster


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PC Light forthcoming

q EDFA 2in1 works on 10 GE (tested in

laboratory)

q GE interface card on 1550 nm

q GE interface card for bidirectional

transmission on single fibre

q

etc.

C


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Prepared CzechLight connections

R h D t t W k h CEF N t k t


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Prepared CzechLight PoP in Brno

q Fibre Praha - Brno 298.3 km,including 257.3 km of G.655 fibre.

q DWDM 10 Gbps cards for Cisco15454

qNIL transmission, if possible

q

June July 2004

R h D t t W k h CEF N t k t


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Acknowledgement

q Jan Gruntorad for support and GLIF entry

q Miroslav Karasek and Jan Radil for lighting ofCESNET2 and CzechLight fibres

q

Josef Vojtech for EDFA 2in1 development

q Comment: presented ideas and opinions are result of our ongoingR&D activities and are opened to improvement

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