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CCK:
PAST, PRESENT, AND FUTURE
Prof. Habib Youssef
General Manager,
CCK, Tunis, Tunisia
e-AGE 2013, Tunis, 12 – 13 December, 2013
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CCK: Centre de Calcul Khawarizmi
• Founded in 1976
• Provides
 Core networking infrastructure with Internet access (Wired and wireless
connections)
 Monitoring and Security Services
 Internet Information Services
 Several critical services
 Mobile services
 Production and distribution of informational systems oriented to university and
scientific circles (Application and System Development)
 Training
 Consultation and advisory role services
 Observatory role of technological and scientific development in IT in the
academic field (Technology planning, technology watch and standards)
• It is now the Brain, Heart, and Veins of the Tunisian
academic community
Scientific andTechnical
Council
General Manager
(Directeur Général)
Administrative and
Financial Services
Management
(Secrétariat Général)
Sous Direction des affaires
administratives, financières et
de l’équipement
Service des Affaires
administratives et
juridiques
Service Financier et
de l’équipement
Operations and Services
Management
(Direction de l’exploitation
et des services
Sous Direction de la recherche,
des projet et de la formation
Service des
projets et de veille
technologique
Service de la
Formation et de
l’ouverture sur
l’environnement
Sous Direction RNU
Sous Direction
Internet et des
services
Service des
abonnements
et suivi
Service
d’hébergement
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Centre de Calcul EL Khawarizmi
Human resources (December 2013)
30
27
25
20
17
Administrateur
15
Autres
15
Ingénieur
12
Technicien
10
5
0
Administrateur
Autres
Ingénieur
Technicien
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1976 – 1997: The Beginning
• Services provided
 Computing facility for the academic community (supports teaching
and research)
 Host to application services used by a variety of entities
 locally developped applications, e.g. results of national exams (high
school, primary school, orientation, ONOU, etc.)
 acquired, e.g. statistical packages, simulation environment, software
environment for scientifc computing, etc.
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Since 1997 – Internet Service Provider
• It became the sole Internet Service Provider for all public
research and higher education institutions.
• Manages and maintains
 Core networking infrastructure and Internet access (via LANs and dialup)
 Internet services such as email, web access, remote access
 Monitoring and Security Services
 Host to Web sites and criticial national applications
• Started with a 256 Kbps in the core
• Became 4 Mbps in 2001
2004 Core topology
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INTERNET
GEANT
22.5 Mbps
Mail servers
Web servers
Dialup service
E-Services
Institutions
Nx64 Kbps
ATI
100 Mbps
CCK
POP El Manar
5x2 Mbps (Leased lines)
2x2 Mbps
5 Leased Lines
4x2 Mbps
Kasbah
100 Mbps
CCK
POP Kasbah
8 LL
Institutions
each 2 Mbps
Institutions
BB
CCK
POP Manouba
Scientific computing servers
Web servers
Dialup service
E-Services
Routing
equipments
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Réseau National Universitaire
Number of Links -- September 2005
70
62
60
Number of Institution
50
48
40
30
Total
27
20
14
12
10
10
0
64
128
256
512
Link bandwidth in Kbps
1024
2048
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Then several upgrades…
• CCK infrastructure continued to evolve with respect to
 Size
 Workload
 Bandwidth
 Services
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Upgrading to RNU1
•18 October 2007: Agreement with Tunisie Telecom to implement:
 360 ADSL connections with bandwidth ranging between 2 Mbps and 6 Mbps

5 x 10 Mbps Fiber Optic Connections
2 STM1 (2 x 155Mb / s):

connecting the two PoPs, CCK-EL Manar and TT-Kasbah
 connecting the two PoPs, CCK - Manouba and TT-Kasbah
 E3 backup connection (34 Mbps) between CCK - Manar and CCK- Manouba
2008 Core topology
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GEANT
INTERNET
45 Mbps
Mail servers
Web servers
Dialup service
E-Services
Institutions
Adsl
2-6Mbps
ATI
Kasbah
BB
2x1Gbps
2x1Gbps
FST
100 Mbps
FO
STM1 (155 Mbps)
CCK
POP El Manar
8 LL
E3 (34 Mbps)
FO SDH Ring
CCK
POP Kasbah
ENIT
FDSPT
FSEGT
STM1 (155 Mbps) Institutions
CCK
POP Manouba
FO SDH Ring
ENSI
ESC
ESCE
ISCAE
FLM
ISD
IPSI
UNIVERSITE MANOUBA
Routing
equipments
2010 Core topology
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GEANT
INTERNET
45 Mbps
Mail servers
Web servers
Dialup service
E-Services
Institutions
Adsl
2-6Mbps
ATI
Kasbah
BB
2x1Gbps
2x1Gbps
FST
100 Mbps
FO
8 LL
E3 (34 Mbps)
FO SDH Ring
CCK
POP Kasbah
1 Gbps)
CCK
POP El Manar
ENIT
FDSPT
FSEGT
1 Gbps)
Institutions
CCK
POP Manouba
FO SDH Ring
ENSI
ESC
ESCE
ISCAE
FLM
ISD
IPSI
UNIVERSITE MANOUBA
Routing
equipments
14
450
7000
Evolution of Bandwidth and number of connections
Over the years 2005 - 2014
400
6000
5
350
5
5
5
41
300
200
4000
250
200
0
0
20
0
3000
342
357
360
360
320
150
2000
240
100
173
190
193
190
1000
50
0
0
2005
2006
2007
2008
LS
2009
ADSL
2010
FIBRE
2011
2012
Bande Passante
2013
2014
Bandwidth in Mbps
Nb of connections
5000
141
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Evolution of the number of users over
the period 1997 - 2007
250000
237809
214809
200000
190766
158286
150000
130913
93140
100000
69558
50000
37330
7261
11958
1998
1999
1014
0
Avril 2007
2006
2005
2004
2003
2002
2001
2000
1997
100000
80000
118346
120000
58878
50553
60000
utilisateur
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Users distribution per field of study (2007)
140000
40000
2028
1313
1956
Médecine
Sport
Formation 21-21
Administratifs & Techniciens
Sciences et Techniques
Lettres, Sc.humaines,Arts et
Culture
Droit,Economie et Gestion
4735
20000
0
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Upgrading to RNU2
• On 16 September 2012, agreement with Tunisie Telecom:
a) The deployment of 194 optical fiber connections
with bandwidth varying between 20 and 100 Mbps.
b) The deployment of 194 Corporate ADSL
connections with bandwidth 20 Mbps.
c) Upgrading
of two connections (2x1Giga)
connecting the CCK EL Kasbah to TT Backbone by
two 2x10Giga connections.
d) The establishment of a point of presence in CCK EL
Ouerdia, which will serve as a rescue/ backup site
for POP EL Kasbah.
2013 Core topology
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2014 Core topology
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Réseau
Internet
10Gbps
BB-TT
Belvédère
10Gbps
ATI
Ouerdia
ATI
ELKasbah
POP CCK Ouerdia
Backup POP Kasbah
2x10Gbps
1Gbps
Institutions
CCK
POP El Manar
CCK
POP Kasbah
1Gbps
FO 20-100Mb/s
Corporate ADSL 20Mb/s
STM1 (155 Mbps)
CCK
POP Manouba
2x10Gbps
1Gbps
BB –TT
EL kasbah
FO 20-100Mb/s
Corporate ADSL 20Mb/s
Institutions
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Future – has already started
• Put more bandwidth
• Consolidate services through a well designed data center
• Consolidate application servers, Web servers,
communication equipment, security systems, system
administrators, support personnel, and anything or
anybody else that provides data services (Cloud services and
cloud computing)
• Put in place adequate mechanisms to understand current
and future community needs.
• Users may know their current needs but usually do not have any
idea about their future needs.
• Interconnect RNU to other NRENs (Eumedconnect3,
Géant, Eduroam, ASREN, …)
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Future…
• Should organize and manage the network Data Center effectively so
that QoS is acceptable, downtime is minimized, troubleshooting is
easier, and the room's infrastructure is efficiently used
• Keeping data on the number of users, connections, etc., is no longer
sufficient, we must maintain
 QoS about the network
 QoE metrics for the provided services
• Can we?
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Yes we can…