SC461 - High-capacity Data Center Interconnects for Cloud-scale Networking

Sunday, 06 March
09:00 - 13:00

Short Course Level: Beginner


Dirk van den Borne, Juniper Networks, Germany
Sander L. Jansen, ADVA Optical Networking, Germany
Mark Filer, Google, USA

Short Course Description:

This short course gives a broad overview of data center interconnect (DCI) architectures and technology in cloud-scale networks, ranging from short-haul interconnects of just a few kilometers across a campus network, to metro and finally long-haul deployments. In particular, we focus in this short course on how the latest advances in DWDM transport enable the realization of ever denser, more power efficient, higher capacity and more scalable data center interconnect links.

We will provide an overview of the different technologies that are most relevant for today’s data center interconnects, covering the full range of transmitter and receiver technologies, pluggable form factors, modulation formats, protocols and data rates. We will also cover the latest industry developments, such as the impact that the introduction of power optimized 400ZR/ZR+ pluggable DWDM optics will have on DCI architectures and how this compares to performance optimized 800G DWDM transponders.

Besides transceiver technology, we will also cover system design aspects such as data center architectures, open line systems, disaggregation of the optical layer and cloud-scale network management and monitoring. We will discuss distinctives of data center interconnects when compared to traditional optical transport networks, and what are the most relevant design criteria in today’s DCI deployments. Finally, we will cover in detail the latest standardization initiatives as well as research and development directions towards future architectures.

The short course should enable attendees to obtain a detailed overview of the different technologies and architectures that are most relevant to data center interconnects and get a comprehensive understanding for the different system design trade-offs in terms of cost, capacity, density, power consumption and complexity.


Short Course Benefits:

This course should enable you to:

  • Describe the typical use cases addressed by data center interconnects, including requirements around transmission distances, system capacity, traffic profiles, data rates, protocols and transmission latency.
  • Understand the system architecture of today’s data center interconnects, and which architectures are typically utilized in both 100G and upcoming 400G data center deployments.
  • Understand the different transceiver architectures in the context of short-reach DCI, for example direct detection in comparison to coherent detection, and how to leverage the trade-off between optical performance and system complexity / cost.
  • Be able to understand industry trends toward IP-optical integration with 400ZR/ZR+ pluggable DWDM optics, and how this can be used to reduce power and space requirements for short-reach DCI interconnects.
  • Gain insights into the latest research on short-reach transceiver technology, and what will be most relevant technology developments for next-generation DCI architectures.
  • Describe how network disaggregation, open line systems, network monitoring, and management are implemented in cloud-scale networks.
  • Obtain an overview of the different standardization bodies and activities relevant for data center interconnects such as IEEE, OIF and TIP.
Short Course Audience:

This course is intended for engineers, researchers and technical managers who would like to gain a better understanding of data center interconnect technology, architectures and solutions. Practical network implementations and system design trade-offs will be discussed in detail, such that the participants can obtain a good level of understanding for the challenges of today’s data center interconnect solutions. Participants should have a comprehensive knowledge in the field of fiber-optic transmission systems; no previous knowledge of data center architectures is required.


Instructor Biography:

Dirk van den Borne is with Juniper Networks, where he is a director of architecture and advises operators worldwide on their technology and network evolution strategy, with a special focus on IP-optical integration. Prior to Juniper he was with Nokia Siemens Networks where he was responsible for the optical system performance of the DWDM transport products. He received his Ph.D. degree in electric engineering from the Eindhoven University of Technology. He has spoken frequently at major industry events, authored and co-authored more than 100 peer-reviewed journal and conference contributions and holds several patents on optical communication. He is an associate editor for PTL and served on various technical program committees.

Sander L. Jansen is a product line manager at ADVA Optical in Munich, Germany, with focus on the access market. Prior to ADVA, Sander was a technical team lead of the optical components group at Nokia Siemens Networks, responsible for the evaluation and specification of new optical components.
He received his Ph.D. degree with highest honors in electronic engineering from Eindhoven University of Technology. Sander authored and co-authored 10+ patents, one book chapter and more than 100 refereed papers and conference contributions. He has received several awards including the Young Investigator award from the IEEE Photonics Society “for pioneering contributions in optical OFDM for fiber-optic transmission systems”. Dr. Jansen authored and co-authored 10+ patents, one book chapter and more than 100 refereed papers and conference contributions. He has received several awards including the Young Investigator award from the IEEE Photonics Society.

Mark M. Filer works at Google as Optical Network Architect, where his primary focuses are campus, metro DCI, long-haul, and subsea optical solutions, and next-generation data center architectures. Prior to joining Google, Mark spent 7 years in Microsoft Azure HW and Networking orgs in Redmond, WA, and 14 years in optical R&D at ADVA Optical Networking in Atlanta, GA. He has numerous publications and patents in the areas of cloud-scale open line systems, long-haul transmission, ROADM network architectures, and DWDM system impairments. He holds B.Sc. and M.Sc. degrees in electrical engineering from the Georgia Institute of Technology in Atlanta, GA. Mark currently serves on the OIF Board of Directors as Vice President.