Nokia Fundamentals of Optical Network Design

Course objectives

After completing the course, students should be able to:

• Describe telecommunications networks (including layers and converged networks)
• Explain the benefit and the purposes of network planning
• Explain the principles of CWDM and DWDM
• Identify the performance limiting parameters in the optical transmission
• Describe the transmission in C and L optical bands
• Explain the role of amplification and regeneration (3R) in optical networks
• Characterize the typical building blocks of a WDM network (e.g., amplifiers, transponders, etc.)
• Describe fixed and flexible grids
• Explain CDC-F and CDC-F 2.0 node configurations
• Design a simple WDM network (lowest cost, growth and highest availability) – pen and paper
• Describe the parameters and inputs required to design a basic WDM network
• Analyze customer traffic demand
• Determine if the optical transport can be optimized using services grooming
• Identify possible protection mechanisms to fulfill customer specs/traffic matrix
• Determine traffic matrix, network architecture and topology
• Establish the network elements configurations
• Compute availability of the proposed network elements, services and network
• Compute the cost of the proposed sites, links, services
• Describe the traffic matrix (customer inputs and outputs)
• Determine cost-optimized network topology using Kruskal's algorithm
• Design the protection mechanism according to the customer's requirements
• Evaluate traffic demand on architecture
• Describe the system requirements for EPT
• Describe how to access, install and license EPT

• Describe the EPT workflow for designing a greenfield network
• Identify EPT menus and toolbar functions
• Describe network and site parameters used by EPT
• Create the elements of a network in EPT (sites, segments, trails and services)
• Describe routing principles (i.e., shortest path) and channel allocation options
• Examine node layouts, WDM route details and optical performance in EPT
• Check and modify WDM routes adding protection
• Check and balance channel utilization
• Check and adjust optical performances
• Check NE layout in EPT design and modify it to increase the availability and to use specific hardware
• Evaluate the impact of the changes on the cost of the design
• Analyze an EPT file (list traffic flows, check links, remove DCM blocks from core site links, check NE layout, modify shelf/board type, and calculate the cost of the design)
• List and explain the reports available in EPT
• Evaluate changes in the design to reduce the cost
• Create a Bill of Materials (BoM), with and without a price file
• Split the network into multiple systems for power commissioning
• Create the EPT output for commissioning
• Explain the commissioning phase
• Design and validate a small network topology with EPT
• Design a medium-sized optical network (focus on growth and footprint) with EPT
• Design and validate a medium-sized network (focus on a predicted growth) with EPT
• Introduce some changes in the design to have equipment footprint as small as possible