Optical Fiber Project - PowerPoint PPT Presentation

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Optical Fiber Project

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Title: Slide 1 Author: marta Last modified by: Pedro Lorga Created Date: 6/22/2004 2:13:21 PM Document presentation format: On-screen Show Company – PowerPoint PPT presentation

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Title: Optical Fiber Project


1
Optical Fiber Project
2
Index
  • Framing
  • Goals
  • Procedures
  • Fiber cable
  • Local Loops
  • Transmission
  • Routing
  • Management
  • Services
  • Future Work

3
Framing
  • Investment vs. Maintenance
  • Inadequate corporate solutions in the national
    market
  • Geographical distribution
  • Insufficient growth when compared with other
    NREN.
  • Availability of a fiber provider

4
Goals A new approach!
  • New infrastructure for the long run
  • Gain more autonomy towards the market
  • Solve the long lastingcapacity limitations
  • Be side by side with the most advanced NREN
  • Provide the means for high bandwidth projects and
    services

5
Goals Guidelines
  • New and simpler network design
  • Ethernet based
  • 10GE backbone
  • Nx1GE access
  • Same Control panel for IPv4/IPv6
  • Redundancy in the backbone through a provider
  • New backbone for the whole network
  • Stage I connecting Lisbon-Braga

6
Procedures
  • Passive fiber network
  • FO for the long distances
  • Local loops using fiber
  • Equipment
  • Transmission (Ethernet).
  • Routing (IP).

7
Procedures
  • International tender for long distance cable
  • Winner - Refer Telecom (Railway Operator)
  • Each local loop with a different approach
  • Always trying to use existing pipes

8
Procedures - Transmission
  • Limited to a public announcement
  • Several proposals received
  • Second round with best proposals
  • Best-and-Final-Offers were asked
  • ADVA was chosen

9
Procedures - Routing
  • Similar to the transmission, without a public
    announcement
  • Several proposals received
  • Second round with best proposals
  • Best-and-Final-Offers were asked
  • Cisco was chosen

10
Long Distance cable Features
  • 48 Optical fibers from witch
  • 24 x ITU-T G.652C (without water peak)
  • 24 x ITU-T G.655

11
Long Distance Cable Tests made
  • Tested
  • Spectral attenuation
  • Chromatic dispersion
  • Polarization Modal Dispersion
  • Reflectometry attenuation
  • Insertion loss

12
Long Distance Cable Features
  • Dialectical central strength member fiberglass
  • 5 loose tubes 4 with 12 fibers each
  • Water resistant
  • Anti-rodent armouring
  • Complies with crushing, tension and temperatures
    specifications

13
Cable - curiosities
  • Mean attenuation of 0.21dB/Km
  • Can connect 150Kms with with nothing-in-line

14
Access Local Loops
  • Strategy
  • use existing pipes
  • establish partnerships with pipe owners
  • always have a ring topology
  • Developing
  • Aveiro, Braga, Coimbra, Lisbon and Porto

15
Access Local Loops - Aveiro
16
Access Local Loops Lisboa
17
Access Local Loops - Difficulties
  • To coordinate all involved entities to meetings
    and surveys.
  • Unexpected events on-site

18
Transmission Solution
  • Minimalist approach - several distinct
    point-to-point solutions
  • Intelligence and services on the IP level
  • The transmission is just the 10GE and 2GE access
    links
  • Solution -gt ADVA Optical

19
Routing Equipment
  • Cisco Equipment
  • 1 router in Lisbon
  • 1 router in Porto
  • 1 router backup/test router
  • 10G Lan-Phy XENPAK ports
  • 1G SFP ports

20
Routing Topology
  • Dual star topology (Lisbon and Porto)
  • Network intelligence on the IP level
  • No more core/edge design for the fiber
    connections (economical reasons)
  • Fully redundant equipment
  • Lisbon-Porto backup link from a commercial
    provider

21
Management and operation TNMS CORE
  • TNMS-CORE from Siemens
  • Integrated management
  • Centralized monitoring and configuration
  • End-to-end connection management
  • Alarm and error monitoring
  • Performance management

22
Management and Operation Approach
  • Monitoring using another fiber pair with passive
    transceivers
  • Ethernet switches directly connected to the
    transmission equipment
  • Non usage of dedicated cards/equipment

23
IP Services
  • Migration of current IP services to the new
    backbone
  • IPv4/IPv6 Unicast and Multicast
  • RD e .COM Classes of Service
  • Offer new and richer classes of service
  • Study the possibility of having VPNs

24
Other Connections Phase II
  • Consulting market again in 2005.
  • New advanced solutions of renting fiber, lambdas,
    GE and FE
  • Redundancy solution for the backbone, through a
    national ring

25
FCCNs New Optical Network
  • Questions?
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