A last kilometer issue in Madrid
Serenate Workshop17-18 September 2002, La Hulpe
Jesús Marco([email protected])
Consejo Superior de Investigaciones Científicas
IFCA (Santander) SPAIN
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The Issue Points• CIEMAT is a large spanish scientific installation in
Madrid (Spain), with national & international projects…• with a low bandwidth (2 Mbps) and saturated
connection to the NREN
• RedIRIS central site (Geant node) is also in Madrid, at a couple of kilometers
• How to improve the link?– Organizational questions– Solving the problem
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CIEMATResearch Public Institution attached to the Ministry of
Science and Technology (MCyT)Fields of Activity Fossil FuelsNuclear Fission EnergyNuclear FusionHEP PhysicsRenewable EnergiesEnvironmental Quality
>1000 people (>500 scientists)
Central site in Madrid city: 20 Ha. , 71000 m2 in 27 buildings
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CIEMAT (campus level)>20 departamental servers >650 desktops
Supercomputing infrastructure
Network: 4km optical fiber + cable
23 people in IT department
2Mbps
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RedIRIS Site(NREN)
CIEMAT 3 km
MADRIDRegional/Metropolitan
European Interconnect
National
Three Level Model
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Traffic (cars) in Madrid at 6.30 am Traffic (cars) in Madrid now (8.30 am)
Many complains from users (in particular those with international projects)
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Organizational questions• NREN in Spain:
– RedIRIS takes care of the National Backbone• In process of upgrade to 2.5Gbps, 622,155 Mbps
redundant topology– 17 autonomies, each one with a RedIRIS
connection node, should take care “inside” its domain of the “campus” connection
– CIEMAT in Madrid, but ... central organization• was a Ministry of Industry institution• Now a MCyT institution
– The 2 Mbps link paid by CIEMAT (20keuros/year)– So, new link cost on CIEMAT...
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Solving the problem• CIEMAT solution:
– Discussion and collaboration with NREN: • Antonio Mollinedo(CIEMAT) met Esther Robles(RedIRIS) last year
(in annual RedIRIS meeting)– CIEMAT has opted for a direct fast-ethernet link (now
being contracted, ready by end of the year)• Good possibility in a metropolitan range• Administrative/Legal solution: via a genomic project• Reasonable Cost: 36Keuros
– Other possibilities discussed:• New optical ring (paid by Madrid Community) joining all
academical institutions, and through RedIRIS site• New fast links for Universities, CIEMAT close to the Universidad
Complutense de Madrid campus• UAM (was also at 2Mbps, at 30 km): now radio-link
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ConclusionsDisclaimer: This is only my “experienced” user point of view
(in particular regarding Administrative issues)
• Short Distance makes this problem Outstanding• In fact, the short distance factor (inside metropolitan
area) gives more possibilities for connection…• Organizational issues do weight!
– Legal/Administrative(/Political?) issues• Quite difficult to solve some times (even if cost is not high)
– Collaboration/Support between • Final Users (Feedback and Project Support)• Campus Level Network Responsible & Institution • NREN
Many thanks to Esther Robles and Antonio Mollinedo for the information
