open photonic devices in cef networks stanislav sima cesnet
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Open Photonic Devices in CEF Networks
2The Quilt's 2007 Spring Member Meeting and Workshop
Author participates on Global Lambda Integrated Facility (GLIF) activity,
Optical networks activity of CESNET research program, Cross Border Fibre committee of GN2,
Porta Optica Study project and Phosphorus project.
Presented ideas do not necessarily reflect an official opinion of the GLIF, GN2, CESNET or any other institution or project.
Open Photonic Devices in CEF Networks
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Why open lighting for Research and Education Networks?
Freedom in REN design (fibres are not sufficient) Use full advantage of advanced products of photonic industry by
programmable devices Very cost effective, comparing to legacy approach Availability of transmission parameters to monitoring and
management (impairment detection etc.) Fully open to improvements during network life cycle Research, development and testing of new network principles is
not limited to upper layers High speed transmissions using multiple lambdas (for example
5x20 Gb/s)
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Open lighting is feasible
Photonic components are commercially available (transmitters, receivers, amplifiers, TFBGs, semiconductor switches...)
Interconnection of components and packaging into industry PC chassis and kits are simple
FPGA kits and designs are available for demanding applications Concept was proved by deployment in CESNET2 network,
devices are very reliable Development of UNIX-based management of photonic
components has good results (using experience with open software development in universities and RENs)
Possibilities of shaping the future (and further development of open lighting concept)
Open Photonic Devices in CEF Networks
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Example of programmable
photonic device
CzechLight optical Amplifier Prototype, Dual Inline version
(CLA DI01)
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Costs of open photonic bidirectional lightingon G.652 single fibre (kEUR) – Apr 07
fibre km 80 120 160 200
1 x GE 1 1.2 13.7 13.7
2 x GE 3.5 4 17.7 23.8
4 x GE 6.5 7.3 28.8 28.8
1 x 10GE 7.5 26.6 27.3 36.3
2 x 10GE 20.2 37 43.1 46.7
4 x 10GE 51.2 56.9 62.3 73.7
8 x 10GE 89.9 104.9 104.9 112.4
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Costs of open photonic bidirectional lightingon G.652 fiber pair (kEUR) – Apr 07
pair km 80 120 160 200
1 x GE 0.9 1.1 1.4 1.4
4 x GE 5.4 5.7 28.3 28.3
8 x GE 11.5 13.2 42.1 42.1
1 x 10GE 7 26.1 26.8 35.8
4 x 10GE 38.9 55.7 61.8 73.8
8 x 10GE 89.3 104.3 104.3 111.8
16 x 10GE 170.8 183.3 183.3 190.8
Open Photonic Devices in CEF Networks
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CLAs running in CESNET2 network
Open Photonic Devices in CEF Networks
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Planned deployment of open photonic devices: CLA, TFBG, SOS
Open Photonic Devices in CEF Networks
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IP traffic statistics are available on-line
All lines (actual, weeks, months)
http://www.cesnet.cz/provoz/zatizeni/
March 2007 (last month)
http://www.cesnet.cz/provoz/zatizeni/ten155_mapa/mapa.last_month.20070300.html
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Legacy research networks Past approach to research networks design and deployment:
– lease SDH/SONET from telco operator
– buy or lease equipment from one of dominant vendors
Main disadvantage: dependency on telco operator and equipment vendor during network life cycle, resulting mostly in slow innovation and high costs (in contradiction with research networking mission). Nevertheless, work for profit is not mistake of telco operators or equipment vendors.
This means our requirements concerning research networks design, deployment, operation and innovation should be improved
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DWDM NIL 8 x 10 Gb/s over 224 km
All devices have been installed only at the end points of the line in Brno (CZ) and Wien (AT) and no in-line elements have been deployed.
Nothing In Line (NIL) approach has been used and according to our knowledge, 8 times 10 Gb/s over 224 km of dark fibre is the longest NIL distance that has been reported for any research or ISP network.
The main advantage of NIL solution is represented by lower capital and operational costs and increased reliability.
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Enabled by advanced photonic technology
The fibre pair from Brno to Vienna has been equipped with CLA PB02 optical amplifiers, developed as a part of optical research activities of CESNET.
Chromatic dispersion of G.652 optical fibre has been compensated by new compensating elements – Fiber Bragg Gratings (FBG).
Terminal routers are equipped with Xenpak DWDM pluggable optical transceivers.
First two companies have started CLA manufacturing. First ISP has started usage of CLA.
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Open photonic devices used for lighting of CBF line Brno – Vienna
Open Photonic Devices in CEF Networks
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You should use NIL
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Last part but important: we prepare meetings
CESNET will host
7th Annual GLIF MeetingSeptember 17 – 18, 2007
Charles University in PragueCarolinum
Czech Republichttp://www.glif.is/
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Universitas Carolina, founded in 1348
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Invitation to
4th Customer Empowered Fibre Network Workshop
September 19 – 20, 2007Czech Technical University in Prague
Masaryk College
Czech Republic
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Czech Technical University - founded in 1707Masaryk College
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CEF Networks workshops One of the most important opportunities to exchange ideas about Customer
Empowered Fibre Networks world-wide research and development are workshops in Prague. You can see– presentations of CEF 2004
» http://www.ces.net/doc/seminars/20040525/
– presentations of CEF 2005
» http://www.ces.net/doc/seminars/20050516/
– presentations of CEF 2006
» http://www.ces.net/doc/seminars/20060529/
Main topics supposed for CEF Network workshop 2007– Fibres acquired or prepared for RENs and cross-border connections
– Advanced photonic devices applied for high-end networking
– Contributions to Open lighting vision
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See you in Prague in September 2007!
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Long term collaboration with Prague is important!Charles bridge built in 1348
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Acknowledgement
All partners from CEF Networks and GLIF community, especially Jan Gruntorád and colleagues Lada Altmannová, Miroslav Karásek, Martin Míchal, Václav Novák, Jan Radil, Karel Slavíček, and Josef Vojtěch from CESNET
Above colleagues are not responsible for any my mistake .
Slides for off-line reading follow ...........
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Remember The Internet had its origins in the world of research and universities and
research networks are still the most advanced part of the Internet Close collaboration of universities and research institutions is success factor
for research networking (used mostly also for education, health care etc.) Research networks
– are an important source of Internet innovation– are largely funded from taxpayers’money– contribute to information technology innovation and deployment, and
hence to economic prosperity The research networking environment drives the development of the Internet
– It develops new technologies and services– It produces university graduates who expect advanced information
technology applications Consortiums of universities and research institutions (country-wide, region-
wide, project-wide, continent-wide etc.) are responsible for inception, design, management and maintenance of research networks
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Applied high end networkingrelevant research field
Iterative steps from research to wide application: research of networking (what principles and technologies fits to user needs) -
by studies, experiments in lab, experiments in networking facilities (national, regional, world-wide), evaluation of testing by advanced users, ...
building of high end production networks and services (for research and education) - NRENs, continent-wide (GEANT2, NLR, I2), world-wide (partial projects of US and EU now)
deployment of successful results in non-research networks (enterprise, municipality, commercial, ...) - CEF Networks etc.
deployment of successful results in development of products for networking - influenced by user needs (procurement, market), design on demand, …
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How to reach the high end
1. By collaboration with researchers able to use high end networks or services world-wide (high demanding, real time, ....)
2. By functional improvement of networking services (software for control plane, AA, mobility, IPv6, ...) - cyclic adaptation to new HW needed
3. By use fibres and full power of optronics and microelectronics devices (lighting, Tuneble FBG, semiconductor optical switching, optical processing, FEC, OEO conversion on chip, PIC, FPGA, ....) - huge improvement of speed and/or other parameters
4. Go to affordable edge of high technology possibilities (reliable financial resources needed)
We need all points above.
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Research networks vision Research network life-cycle is from inception, design, management,
maintenance and upgrades up to end of life (replacing by new research network)
Consortium is responsible for network life-cycle. Realization of above tasks can be fully or partially outsourced, if working capacity or special knowledge is missing in consortium (and funding is sufficient).
Consortium should maintain own ability to immediately use networking research results, results of fibre footprint development and new types of electronic and photonic products.
Important requests are:– Fibres (including last mile) dedicated to research network are crucial– Freedom of improvement and independency on vendors (mixed vendor approach)– Ability to quick return and correct design (including re-tendering etc.)– Interoperability of devices and Multisourcing (MSA) – Pre-procurrement with fibre providers and electronic and photonic industry
(including collaboration on proposals of standards) Customer Empowered Network (CEF) concept aims to support this vision
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Steps to vision Acquiring first dark fibre (324 km) for CESNET in 2000, STM-16 transmission Using new advanced photonic products for 189 km STM-16 transmission without any
in-line devices since 2002 (i.e. mixed vendor network design) Bratislava (SK) – Brno (CZ) GE since 2003, now DWDM NIL over 190km Cieszyn (PL) – Ostrava (CZ) GE since 2004, now DWDM n x 10 Gb/s Brno (CZ) – Wien (AT) since 2006, DWDM NIL 8 x 10 Gb/s over 224 km Nothing-in-line (NIL) approach, where possible and practicable
Upgrade of dark fibre lease service to lit fibre lease service is prepared for 4 dark fibre lines of CESNET network now (experiment with partial outsourcing)
– no return to SDH or lambda lease for research networks – fibre provider will deliver more service (for example lease, installation and maintenance of
DWDM lighting devices designed and managed by research network
For offer of full outsourcing see new announcements:– Offerings include but are not limited to: network architecture and design, installation, staging
and implementation services, order management and asset tracking, and 24 x 7 x 365 operations support.
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CzechLight Amplifier (CLA) open photonics devices
An optical kit composed from commercially available elements Cost effectivity & reliability Possibilities of future development Customer based OFA modules – EDFA for 1550 nm, PDFA for 1310 nm (10
GE line cards for PC ), Raman modules High power boosters, low-noise preamps, in-line amps… Up to 4 EDFAs (customer based) in one case Only 1U height rack case Dual PSUs (100-230VAC, 48VDC, …) All important optical parameters are settable and under monitoring (control
modes, gains, output powers, alarms,…) Remote monitoring of all other important operational parameters (DC
voltages, fan speeds, temperature) Many OOB management interfaces available - (Ethernet, USB,
GSM/GPRS/UMTS, Wi-Fi, BlueTooth,…) Open system based on Linux = programmability, possibilities of
improvement, easy extendibility
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CzechLight amplifiers structure
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Collected objections and answers about photonicsO: Task of NRENs is not to develop High end networking technology instead of vendors.A: Vendors are directed by standards, procurements and market. NRENs need to acquire and
verify knowledge used for RFI and procurement (requests of new technology, influencing vendors). This is research and practical verification of principles and guaranty of independence on vendors rather then development of equipment.
O: Low cost technology is not interesting for high end networking.A: Not in general. High end networking should be affordable. Advanced technology means
improvement of some parameters, for example speed, costs, reliability, dimensions, power consumptions, etc. So it depends on the case.
O: Low cost technology is not interesting for rich countries.A: In principle, the opposite is true: rich countries are rich, because do not waste resources so
much. Low cost technology is not interesting only for some companies and some managers temporarily.
O: High-end networking technology is not affordable for developing countriesA: Not in general. Some advanced technology brings cost effectiveness (remember
microelectronics story)O: We are not allowed to use of our funding and capacities for charitable support of high end
networking technology deployment in less developed countries (with explicit exceptions).A: Deployment of high end networking technology is in some cases simpler in countries, where
new networks are built. In such cases it is research collaboration on pilot deployments, not support.
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