The Optical Networking and Communication
Conference & Exhibition

San Diego Convention Center,
San Diego, California, USA

SC176 - Metro Network: The Transition to Ethernet

Sunday, 19 March
09:00 - 12:00

Short Course Level: Advanced Beginner


Loudon Blair; Ciena Corp., USA

Short Course Description:

Metro networks are being stretched by broadband services that are forcing the capacity of customer access links to increase by two to three orders of magnitude. Because service revenues are not growing in proportion to bandwidth, new network solutions are needed to dramatically lower the cost per unit bandwidth of the network infrastructure. Consequently, service providers almost universally are migrating from SONET/SDH to Ethernet for both equipment interfaces and the creation of a new packet transport layer. In this course, we consider the motivation for new service offerings for both residential and business environments and we analyze how these new services are changing the magnitude and pattern of traffic flows across the metro area. We then explore traffic projections at several key points in the metro network and estimate the required capacity of networking switches and transmission systems that will result from different service-mix scenarios.  We examine the mix of networking technologies that can be employed in the metro to yield a highly functional yet economic network solution. This includes an introduction to Carrier Ethernet services and different implementation approaches to achieving carrier-grade performance as well as how Carrier Ethernet operates in conjunction with other key network technologies including IP/MPLS, OTN and DWDM.  With the anticipated dramatic growth in network capacity, the optical networking layer is playing an increasingly important role in the metro network, both in enabling capacity scaling and in network reconfiguration. We discuss how the convergence of Carrier Ethernet and optical technologies is leading to the development of new packet-optical transport and switching systems.  Applications of how packet-optical systems may be used in metro networks are explored using use cases.

Short Course Benefits:

This course should enable you to:

  • Describe how new services are changing metro network traffic characteristics.

  • Describe the impact that these new services will have on metro network traffic patterns and network equipment capacity in both aggregation and core metro networks.

  • Describe the meaning of Carrier Ethernet and discuss different implementation approaches.

  • Describe the key networking technologies used to build next generation metro networks, including DWDM, OTN, and IP/MPLS.

  • Discuss the role of Carrier Ethernet in new metro architectures and how it operates in combination with other key technologies.

  • Describe how packet and optical technologies are converging to form packet-optical transport and switching systems.

  • Discuss how packet-optical systems may be used in different metro application scenarios, including new cloud network architectures.

Short Course Audience:

This course is intended for network architects and planners from service providers, engineering and marketing staff to network equipment providers, technologists with an interest in the evolution of networks, industry analysts, and financial analysts.

Instructor Biography:

Loudon Blair is Senior Director of Corporate Strategy at Ciena. Since joining the company in 1997, he has performed several roles in the development of Ciena’s networking products. He has also worked at Iridium, BT and Hitachi. He has been a long-term contributor to OFC/NFOEC, was general co-chair for OFC/NFOEC in 2008 and is current OFC Steering Committee Chair.

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