Optical networks are growing at unprecedented rates to accommodate the expl
osion in data traffic brought on by new Internet and enterprise application
s. Coupled with this growth has been the introduction of client devices (e.
g., routers, storage devices, and content servers) at the network edge oper
ating at optical line rates. These two trends are changing the fundamental
way in which optical transport networks are being architected, deployed, an
d managed. Emerging intelligent optical networks address the traffic scalin
g challenge. Additionally, when combined with modern service management tec
hnologies, these networks open exciting opportunities for delivering new cu
stomized optical services directly to end-users, allowing carriers to fully
exploit the economics of optical transport. This article presents a networ
k framework for delivering optical services.