Optical transport networks

Target audience:

Those involved in designing, implementing, and maintaining optical transport networks. for public communications services, and those responsible for national communications for the utility, rail and corporate sectors.

 

Course prerequisites:

An understanding of time division multiplexing, connection oriented packet switching, and wavelength division multiplexing. It is recommended that the following PTT online courses are studied before attempting this course: "Modulation and multiplexing" and "Introduction to wide area networks" . A prior appreciation of legacy SDH networks will also be beneficial; this subject is covered by the PTT course "SDH principles".

 

Course objectives:
By the end of this course you will be able to:

• describe the characteristics required for the telecommunications networks that provide services to residential and business customers.
• explain the transition from TDM to IP-based service provision and the challenges involved in providing a comparable service.
• describe and compare the role and facilities of the various transport technologies and protocols that may be employed in a telecoms network
• explain the factors that influence the capacity of DWDM optical links.
• explain the advantages of optical switching with references to the facilities provided by a reconfigurable add-drop multiplexer (ROADM).
• explain how client signals are transported over an optical transport network (OTN) as specified by the ITU in recommendation G.709.
• describe the role and provision of OAM facilities and automatic protection switching in an OTN.
• describe and compare methods of mapping client signals into the payload of OTN transport signals.
• compare methods of providing connection oriented services in an OTN with reference to the use of MPLS, Carrier Ethernet, and OTN switching.
• describe the characteristics and typical applications of fine grain OTN services that provide low bit rate, ultra-low latency connections with stable timing distribution.
• describe and compare the benefits of possible protocol combinations in aggregation and core networks including those using OTN switching and transport.
• describe and compare possible architectures for an optical transport network.

 

Approximate study time: 7 hours 

 

Delivery platform requirements:
To access the course, a computer/tablet running a browser such as Chrome, Safari, Edge etc. is required. The device should have an active Internet connection and a screen resolution of at least 1024x768.