USA Abilene network(Internet2 backbone) 10Gbps backbone in production 2003 National lambda rail (nlr) Developing a national wdm network for research and experimental use Dark fibre is procured Use ethernet over wdⅣ IPv6 is adopted7 USA • Abilene Network (Internet2 backbone) – 10Gbps backbone in production 2003 • National Lambda Rail (NLR) – Developing a national WDM network for research and experimental use – Dark fibre is procured – Use Ethernet over WDM – IPv6 is adopted