The OnCAT Project’s main objective is to provide connectivity to the entire territory of Catalonia. Previously, is necessary to analyse the viability of the implementation and make an action plan composed of the different stages of the project The first stage is focused on the core and aggregation networks’ design. This is the stage we studied in this first delivery, which aims to define specifications and details of it. The second stage, which defines the access network, will be studied on the final delivery of the project. The available budget for the project’s design, implementation and operation starting is about 250M €. This document is structured in some sections that define the different designing parts that we have to take in account. Starting with the calculations required determining the traffic in the regions of the territory and the technological solutions chosen, following the definition of topologies and equipment used, and ending with the budgeting of the project.

1. onCAT
STUDY OF THE ECONOMICAL AND
TECHNICAL VIABILITY TO IMPLANT A DATA
NETWORK
Group 8: Marco Ros, Adrià López, Sergio Soria, Manuel
Torres, David López.

2. Presentation scheme
 Introduction
 Topology and equipment used
 Backbone
 Barcelona
 Lleida
 Tarragona
 Girona
 Municipality links to regional nodes
 Protection
 Synchronization
 Budget

3. Introduction
 GOAL: improve communications in Catalonia designing a fibre
optical network through SDH technology.
 Three types of customers:
 Residential
 Enterprise
 Administration
 Population of Catalonia
 Traffic oversize of 25%
 The majority of nodes are
placed in regional capital

4. Physical Network Design
Interesting facts:
• 7475,4 Km of fibre
(2882,9 Km of rings and
4592,5 Km of
municipalities)
• 10 DxC
• 47 ADM
• 431 LTM
• 26 DWDM
TOTAL FIBER USED IN CATNIX
7475,4 KM
• 14 AO
NETWORK
MUNICIPALITY-NODE TOTAL LINKS 4592,5 KM • 2 PRC
NODE-NODE RING TOTAL LINKS 2882,9 KM
• 5 SSU

5. Backbone topology and equipment
Girona
(Gironès)
OMS
2430 Important points:
Sabadell
(Vallès
Occidental)
• Two equal equipment in
Lleida OMS OMS each node.
(Segrià) 1600 3255
Sant Feliu
(Baix Llobregat) • Barcelona is connected to
the backbone with two nodes.
OMS
2430
Tarragona
(Tarragonès)

6. Barcelona topology and equipment
Link Speed
Important points:
≈ 6,5Gbps
OM OMS • 4 links to access the OM
S 3240 S
166
Barcelona Barcelona node.
CATNix 166
City 1 City 2
Distributed traffic.
4 4
Link
OMS Speed
3255
Link Speed
≈ 19Gbps Link • Barcelona City is
Speed
≈ 10,5Gbps divided in two rings.
≈ 10Gbps
OMS
3240
• Two nodes are the
gateways to the
network’s Backbone
Link Speed
OM OMS ≈ 11Gbps (Sant Feliu &
West Ring
OM
S 3255
East Ring Sabadell). S
166 165
4 4
• Our main goal is to
distribute the traffic.

7. Lleida topology and equipment
OMS Important points:
1664
OMS OMS
1664 1664 • Point-to-point in links
OMS
1664 between Vielha and
OMS Pont de Suert,
1664 Mollerussa and
OMS Borges Blanques and
1600
OMS
Link Speed Pont de Suert and
1664 ≈ 8 Gbps Tremp.
• The node allocated in
OMS Lleida is connected to
1664 OMS Girona and Tarragona.
1664
OMS OMS • The nodes allocated
1664 OMS 1664
1664
in Mollerussa and
Tremp work like a
ADM too.

8. Tarragona topology and equipment
OMS
1664
OMS OMS
1664 1664
Important points:
• One node per each
OMS
Link Speed
OMS capital of region.
1664
≈ 12 Gbps
1664 • The node allocated in
Tarragona is
OMS OMS connected to
1664 2430 Barcelona.
OMS
1664
OMS
1664
OMS
1664

9. Girona topology and equipment
OMS
1240
Important points:
OMS OMS
1664 1664 • Point-to-point in link
between Puigcerdà and
Ripoll.
Link Speed
OMS
1664
≈ 10 Gbps OMS
• The node allocated in
1664
Girona is connected to
Barcelona.
OMS OMS
• The node allocated in Ripoll
1664 1664
works like a ADM too.
OMS
2430

10. Municipality links to regional nodes
A B C
Cerdanyola del Vallès Salou Cervera
13,5 Km 10,4 Km 9,8 Km
4066,5 Mbps 1597,28 Mbps 208,8 Mbps
2 x LTM Marconi OMS LTM Marconi OMS ADM Marconi OMS 860
870 + DWDM Marconi 870
3000

11. Network protection
Two-Fibre Two-Fibre
MS- MS-
SPRing SPRing
Four-Fibre
MS-
SPRing
Two-Fibre
MS-
SPRing
Two-Fibre
MS-
SPRing

12. Synchronization
 Follow recommendations ITU-T G.803
 Synchronization is carried across the network using the STM-N
signals
 Each network device will select the highest quality timing reference
clock, chosen by the synchronization status messages (SSM)
 SSM: SDH/SONET protocol that communicates information about the
quality of the timing source
 Hierarchical Master-Slave synchronization.
 Equipment Required
 2 PRC (Primary Reference Clock)
 5 SSU (Synchronization supply unit)
 SSU-T
 SSU-L
 47 SEC (SDH Equipment Clock)

13. Synchronization

14. Budget
BUDGET
OPTICAL FIBRE (RINGS) 41,78 M. €
LLEIDA 14,52 M. €
TARRAGONA 6,31 M. €
GIRONA 7,84 M. €
BARCELONA 3,20 M. €
BACKBONE 9,88 M. €
OPTICAL FIBRE (MUNICIPALITIES) 99,35 M. €
TYPE A 0,46 M. €
TYPE B 4,78 M. €
TYPE C 94,11 M. €
NETWORK EQUIPMENT 12,43 M.€
TOTAL BUDGET 153, 57 M. €

15. Thank you for your attention