Transcript Towards advanced CEF Networks lighting - CzechLight

Research activity
www.ces.net
„Optical networks“
czechlight.cesnet.cz
Towards advanced CEF Networks
lighting
Stanislav Šíma, Lada Altmannová
CEF Networks workshop Prague, May 30th, 2006
Towards advanced CEF Networks lighting
Authors participate on
Optical networks activity of CESNET research intent,
Joint Research Activity of GN2 project,
SEEFIRE project,
Porta Optica Study project,
Lucifer project.
Presented ideas are of authors
and do not necessarily reflect an official opinion
of the CESNET or any other institution or project,
and are opened to improvement.
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Towards advanced CEF Networks lighting
Why dark fibre
for Research and Education Networks (RENs)?
(we have published this slide in TNC2004, Rhodes)
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Freedom in REN design
Fixed costs of long-term use
Transmission capacity up to Tbps
Cost-effective ways of sharing (WDM, TDM, …)
Multiple wavelenghts possible (e.g. 1 – 256)
Management of transmission
Equipment selection, moving, design, …..
Now: Move of Research and Education Networks to dark fibres
is successful and continues, some other networks follow RENs
(municipalities, hospitals, military,… )
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Towards advanced CEF Networks lighting
Why open lighting
for Research and Education Networks?
(open means multi-vendor under rules given by RENs)
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Freedom in REN design on optical and optoelectronic layers (L1+L2)
Save long-term investments on dark fibres (change lighting instead of
fibres)
Fibre is resource (facility) and sharing of fibres is the biggest
opportunity to decrease the overall costs of networking.
Use of equipment of many vendors for lighting and L1
interoperability is inevitable due to multi-domain nature of research
networking
Multi-vendor lighting in single domain is inevitable to take full
advantage of fast development of photonic industry and brings new
functions, better parameters and/or cost-effectiveness
– No vendor has the best lighting equipment for all needs
– Roadmaps of technology development of big vendors are not optimal to REN needs
– Some big vendors use obstructions to suppress interoperability
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Towards advanced CEF Networks lighting
Multi-purpose dark fibre footprint for research
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Design in independent domains results in separate fibres for:
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National RENs and Regional Optical Networks
Continent-wide RENs (GEANT2, NLR)
National dark fibre testbeds (CzechLight, VIOLA, …)
Prepared continent/world-wide dark fibre testbeds needed for research of
networking (see for example GENI, FP7)
Collaborative design by using open lighting is able to share fibres by means of
WDM for all of above purposes, for example
– Fibres of NRENs connected by CBFs are shared by GEANT2 lambdas
– Lighting of fibres Brno-Bratislava and Brno-Vienna are prepared for sharing by IP
service, e2e lambdas including GLIF, and testbed lambdas
– Lighting of fibres to end users are prepared for sharing by IP service, e2e lambdas
and testbed lambdas
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This means dark fibre testbed (or facility network) implements lambda
infrastructure for production network instead of buying lambda service!
(no lighting devices disruption is allowed in such dark fibre testbed)
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Towards advanced CEF Networks lighting
National dark fibre footprints for research (draft)
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Towards advanced CEF Networks lighting
European dark fibre footprint for research (draft)
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Towards advanced CEF Networks lighting
Leased digital circuits for extension - example
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Towards advanced CEF Networks lighting
Collaborative design
of multidomain CEF networks
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Primary rule for CEF networks fibre topology is KIS (but now it means Keep
It Short): fibre is the most expensive part of network (for example 60%)
How to implement continental-wide services and testbeds by means of national
fibre footprints and cross-border fibres and in what cases we need also parallel
continental-wide fibre infrastructure?
New types of transmitters, receivers, amplifiers, gratings etc. are available,
some of them even with MultiSource Agreements (this is very important for
designers), with better parameters and very cost-effective
Overcome distances by lambdas only is possible: saving number of routers,
switches and administrators
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Towards advanced CEF Networks lighting
Railways example
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Mesh network without parallel
lines (with exceptions)
Parallel railway lines are very
expensive !
Reasons for parallel lines:
– Transport speed, local traffic
– Heavy workload
– Different owners, etc.
Parallel lines are rare!
No overlaying domains
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Towards advanced CEF Networks lighting
Why open lighting
(the first indication of advantages for production network)
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189 km Praha – Pardubice , G. 652, 46 dB
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STM-16 since March 2001
Lighting equipment 1x ONS15104, in-line, protocol dependent
Total 67.300 Euro
STM-16 or GE since May 2002
Lighting equipment 2x OA Keopsys 2x 21 dBm, NIL, protocol
independent
Total 37.300 Euro
Totals above are for varying parts of STM-16 lighting, other parts
are the same for both cases
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Towards advanced CEF Networks lighting
Obr v RGB
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Why open lighting
(the second indication of advantages for production network)
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123 km Praha – Plzeň , G. 652, 33,7 dB
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STM-16 since September 2003
Lighting equipment 1x ONS15104, in-line, protocol dependent
Total 67.300 Euro
STM-16 or GE since December 2003
Lighting equipment 2x OA Keopsys 2x 10 dBm, NIL, one side
amplification only, protocol independent
Total 20.000 Euro
Now we use CzechLight Amplifiers (CLA) with improved
parameters, cost and Unix remote management
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Towards advanced CEF Networks lighting
Why open lighting
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(Advantages for multi-purpose dark fibre footprint)
190 km Brno – Bratislava , G. 652, 45 dB
n x 10 GE since February 2006
- Lighting equipment 2x :
 CASE MUX/DMX + FBG, CLA PB01, XENPAK
 Total 45.000 Euro
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This is cost for one 10G lambda with extension possibility up to
4 lambdas, adding of one lambda costs 10.000 EUR (two
XENPAKs). If you need extensibility to 8 lambdas, you can
use more expensive MUX/DMX (add 1.260 EUR for one
line). If you need extensibility to 16 lambdas, you can use OAs
with a little higher output power. The same XENPAK from
other vendor costs 20.000 EUR/pc (third party components are
not allowed). If you can use XFP instead of XENPAK, price
will be about 3.800 EUR/pc.
Prepared 224 km Brno - Vienna (ACONET, VIX)
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Towards advanced CEF Networks lighting
Multi-purpose using of dark fibre
NREN
PoP 1
NREN
PoP 2
End User Y
End User X
End User 1
End User 2
IP service
Testbed
e2e service 1
.
.
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e2e service n
IP service
Testbed
Core fibre
First mile
fibre
DWDM
MUX/DEMUX
CLA PB01
First mile
fibre
e2e
. service 1
.
.
e2e service n
DWDM
MUX/DEMUX
Lambda for production IP service
NREN
PoP n
Experimental lambda for testbed
Planned lambda for e2e service
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Towards advanced CEF Networks lighting
CzechLight December 2005
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Towards advanced CEF Networks lighting
Multi-service connections of hospitals
Praha
PoP
Central Military Hospital
Prague (CMH)
Ústí n.L.
PoP
End User Y
End User X
Masaryk Hospital Ústí n.L.
(MHÚL)
CESNET2
CzechLight
CESNET2
CzechLight
MHÚL
.
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e2e service n
CMH
.
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e2e service n
8,8 km
3,8 dB
130,6 km
DWDM
MUX/DEMUX
1 km
0,3 dB
29,7 dB
CLA PB01
DWDM
MUX/DEMUX
Lambda for production IP service
Experimental lambda for testbed
Planned lambda for e2e service
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Towards advanced CEF Networks lighting
Acknowledgement
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Jan Gruntorád, Miroslav Karásek, Martin Míchal,
Václav Novák, Jan Radil, Karel Slavíček, Radek Velc,
and Josef Vojtěch from CESNET
All partners from CEF Networks community
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