Michael Mayer

Michel Ouellette

Jean-Loup Ferrant

Mike Gilson

Sébastien Jobert

Laurent Montini

Silvana Rodrigues

Stefano Ruffini

This book addresses the multiple technical aspects of thedistribution of synchronization in new generation telecommunicationnetworks, focusing in particular on synchronous Ethernet andIEEE1588 technologies. Many packet network engineers struggle withunderstanding the challenges that precise synchronizationdistribution can impose on networks. The usual “why”,“when” and particularly “how” can causeproblems for many engineers. In parallel to this, some othermarkets have identical synchronization requirements, but with theirown design requirements, generating further questions. This bookattempts to respond to the different questions by providingbackground technical information. Invaluable information on stateof-the-art packet network synchronization and timing architecturesis provided, as well as an unbiased view on the synchronizationtechnologies that have been internationally standardized overrecent years, with the aim of providing the average reader (who isnot skilled in the art) with a better understanding of this topic.The book focuses specifically on synchronous Ethernet and IEEE 1588PTP-based technologies, both key developments in the world ofsynchronization over the last 10 years. The authors address theneeds of engineers and technical managers who are struggling withthe subject of synchronization and provide an engineering referencefor those that need to consider synchronization in NGN. The marketapplications that are driving the development of packet networksynchronization and timing architectures are also discussed. Thisbook provides a wide audience with everything they need to knowwhen researching, implementing, buying and deploying packetsynchronization architectures in telecommunication networks. Contents 1. Network Evolutions, Applications and Their SynchronizationRequirements. 2. Synchronization Technologies. 3. Synchronization Network Architectures in Packet Networks. 4. Synchronization Design and Deployments. 5. Management and Monitoring of Synchronization Networks. 6. Security Aspects Impacting Synchronization. 7. Test and Measurement Aspects of Packet SynchronizationNetworks. Appendix 1.Standards in Telecom Packet Networks Using SynchronousEthernet and/or IEEE 1588. Appendix 2. Jitter Estimation by Statistical Study (JESS) MetricDefinition. About the Authors Jean-Loup Ferrant worked for Alcatel and Alcatel-Lucent until heretired in 2009, then he continued being Rapporteur of ITU-TSG15Q13 sponsored by Calnex Solutions. Mike Gilson is a Technical Specialist for BT on timing andsynchronization based at Adastral Park, Martlesham Heath, UK. Herepresents BT on several standards bodies. Sébastien Jobert is an R&D expert on synchronization, QoSand performance of telecom networks at France TélécomOrange Labs, Lannion, France. Michael Mayer is an active contributor to ITU-T standards and aconsultant in timing and synchronization. Laurent Montini is a Technical Leader, based in France, and workingin the Corporate Consulting Team within the Research and AdvancedDevelopment organization at Cisco. Michel Ouellette is V.P. of Engineering at Iometrix in SanFrancisco, California, USA, specializing in conformance testing ofpacket network technologies such as Carrier Ethernet 2.0, MPLS,IEEE1588, SyncE. Silvana Rodrigues is Director of System Engineering at IDT inOttawa, Canada. She represents IDT on several synchronizationstandards committees. Stefano Ruffini is the synchronization expert representing Ericssonon various standardization bodies. He works in Pisa, Italy in theResearch & Innovation Team within the IP & BroadbandDevelopment Unit at Ericsson.

Next Generation Synchronization Networks

Synchronous Ethernet and IEEE 1588 in Telecoms

Sébastien Jobert

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