Optical Transport Network Design

4 Day Course
Hands On
Code PWL046

Book Now - 3 Delivery Methods Available:

Classroom Virtual Classroom Private Group - Virtual Self-Paced Online


Modern carrier networks must deliver reliable communications services that are secure and match the growing speed and capacity demanded by their customers. While during the 20th Century we saw the growth in universal voice and the early use of Internet services, the 21st Century network demand has been shaped by the inexorable growth in multimedia, social media and mobile services. Carrier Transport Networks must match the current demands with the right technologies delivered flexibly enough to adapt to the ever changing pattern of user demand. They must also be delivering service to the right place and at the right price.

This course is aimed at designers, and those that want to be aware of the key sills of design, within the context of building new Transport Networks for tomorrow’s carrier services. While this is mainly concerned with long distance, high bandwidth core services, it is important to be aware of where and how the services will eventually be delivered. In the 1990s there was a massive grown in SDH and ATM technology within Transport Networks. However by the end of the 1990s it was realised that ATM was an expensive mistake as Switched Optical Ethernet offered a more powerful and cheaper solution. Also that SDH, optimised for voice services, was probably not the optimal solution either.

This course examines the demands which we are likely to place on our next generation of Transport Networks, identifies the options currently available for delivering reliability, security, aggregation flexibility, routing, switching and management. It then provides an approach to designing networks using standardised metrics to deliver services matching current and predicted future demand profiles. In-class exercises will uncover the key statistical techniques for estimating and prediction of future demand and confidence intervals. Using simple spread sheets and modelling students will learn from practical exercises how to design services to match their particular carrier network needs.

These techniques will then be applied to consider the design of carrier networks using Optical Transport technologies.


When you have completed this course you will be able to:-

  • Identify the key metrics needed for Transport Network Design

  • Estimate current and future service demand

  • Apply key statistical prediction techniques to extract confidence intervals for designs

  • Deploy aggregation and topology selection to deliver the required reliability

  • Select the optimal level of switching for the required services

  • Match operational control, management and provisioning to the network needs

  • Appreciate how migration from existing services can be achieved

  • Ensure designs match the current and likely future needs

Target Audience

Network designers, Project Managers, Infrastructure design professionals, Service and system engineers wishing to appreciate the design of services.


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Defining the Design Boundaries (6 topics)

  • Key approach to design
  • Defining where services will be delivered
  • Structuring the network: Core, Metro, Aggregation, Access Service
  • Selecting the Management and service requirements
  • Identifying the Key market requirements
  • Analysing service implication of the requirements

The Design Metrics (6 topics)

  • Purpose of metrics
  • Selecting the values and the bounds
  • Accumulating and estimating aggregate loads
  • Predicting future load changes
  • Matching User Requirements to Transport Loading
  • Identifying service protection requirements

Routing, Switching and Provisioning Control (7 topics)

  • Operational Service Requirements
  • Deciding how the Transport Service Will be Controlled
  • Configuration and Provisioning
  • Service protection considerations
  • G.8081/Y.1353 Definitions and Terminology for Automatically Switched Optical Networks (ASON)
  • G.807/Y.1302 Requirements for the Automatic Switched Transport Network (ASTN)
  • G.8080/Y.1304 Architecture for the Automatic Switched Optical Network (ASON)

Optical Transport Physical Transmission (11 topics)

  • Optical transport network interface structure
  • Multiplexing/mapping principles and bit rates
  • Optical transport module (OTM-n.m, OTM-nr.m, OTM-0.m)
  • Physical specification of the ONNI
  • Optical channel (OCh)
  • Optical channel transport unit
  • Optical channel data unit
  • Optical channel payload unit
  • OTM overhead signal (OOS)
  • Overhead description
  • Maintenance signals

Signal Structures (17 topics)

  • Mapping of client signals
  • Concatenation
  • Mapping ODUk signals into the ODTUjk signal
  • Forward error correction using 16-byte interleaved RS (255,239) codecs
  • ODUk tandem connection monitoring (TCM) overhead
  • OPUk Multiplex Overhead
  • Basic signal structure,
  • ODTU12, ODTU13, ODTU23,
  • OPUk Multiplex Overhead,
  • OPUk Multiplex Structure Identifier (MSI)
  • OPU2 Multiplex Structure Identifier (MSI)
  • OPU3 Multiplex Structure Identifier (MSI)
  • OPUk Payload Structure Identifier Reserved overhead (RES)
  • ODU1 into ODU2 multiplexing
  • ODU2 into ODU3 multiplexing
  • ODU1 into ODU3 multiplexing
  • Automatic Protection Switching

Management and Troubleshooting (3 topics)

  • G.874, Management aspects of the optical transport network element
  • G.874.1, Optical transport network (OTN) protocol neutral management information model for the network element view
  • G.875, Optical transport network (OTN) management information model for the network element view

Design Case Studies (4 topics)

  • Service using STM16 and STM 64
  • Service using Gigabit Ethernet and 10G Ethernet
  • Designing Aggregated Service With STM16, STM64, GbE and 10GbE aggregated into higher rate
  • Protection provisioning and switching

Practical Design Exercises (4 topics)

  • Producing Aggregation Requirements from Access Demand Specification
  • Migration of SDH to OTN
  • Designing Aggregation Service
  • Designing Core Service

Review, Evaluation and Exam

Scheduled Dates

Please select from the dates below to make an enquiry or booking.


Different pricing structures are available including special offers. These include early bird, late availability, multi-place, corporate volume and self-funding rates. Please arrange a discussion with a training advisor to discover your most cost effective option.

Code Location Duration Price Apr May Jun Jul Aug Sep
Virtual Classroom (Bangalore)
4 Days $3,420
Virtual Classroom (Dubai)
4 Days $3,420
Virtual Classroom (London)
4 Days $3,420
Virtual Classroom (Reston, VA)
4 Days $3,420
Virtual Classroom (Singapore)
4 Days $3,420

What Our Customers Say

The training was delivered with a high level of expertise and excellence. Instructor was highly knowledgeable.”

Technical Trainer, Aviat Networks

Overall the course was really good, the trainer really understood the material and was very approachable.”

Customer Training Manager, Aviat Networks

Excellent course, informative and well-paced.”

CSE, Cisco

Course was very well outlined. Topics were great and bridged many gaps.”

System Engineer, Cable & Wireless

An excellent intro to video encoding & MPEG transport streams - I would definitely recommend it.”

Broadcast Engineer, Cisco

Definitely an excellent intro. Left me interested in learning more.”

Broadcast Engineer, Eircom

Excellent training course with real examples and practical classroom demonstrations.”

Transport Designer, Orange

Instructor knowledge and experience was excellent.”

Solutions Engineer, Akamai

Excellent course, very clear and well organised. Course content delivery was very good.”

Assistant Engineer, Dhiraagu

Very informative and appropriate.”

Network Support Technician, BT

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