Beyond 10 Gbps Vendor Panel Moderator: Rick Summerhill, Director Network Research, Architecture, and Technologies, Internet2 Joint Techs Salt Lake City, UT 22 November 2018

Evolution of R&E Networks Early days - 56 kbps NSF T1 Network NSF T3 Network Privatization vBNS OC-12 primarily Abilene OC-48 Current Abilene OC-192 Trend to larger bandwidth circuits Is this trend about to end? Parallelization? Change in Architecture? What does the community want now?

Beyond 10 Gbps It is possible to saturate a 10 Gbps backbone with flows between two PC class machines Recent flows across the Abilene network have reached 9.5 Gbps using dual bus PCs having dual Ethernets Research networks have applications that require large flows across long distances On commercial networks, most data flows are small Parallelizing may be sufficient to add capacity What are the economic effects/factors? Technology exists 40 Gbps modulation techniques Muxing at various levels Economics of higher bandwidth circuits

Questions What are the technological directions, both LAN and WAN – 40 Gbps? 100 Gbps? Optics and electronics? Parallel and single optics? Practical limitations? Limitations of parallelization at layers two and three? What are the driving applications? What are the economic incentives? Impacts of Standardization? Timeframe? 40 Gbps? 100 Gbps?

Panelists Jeff Cain, Cisco Systems Ken Gold, Nortel Networks Hong Liu, Juniper Networks Jeff Livas, Ciena Stephan Garrison, Force10 Networks Mark Stine, Qwest Communications