As service providers take steps to integrate the IP and optical layers of their network infrastructure to ensure optimal efficiency, they are faced with the challenge of adjusting systems, workflows and processes.Flexibility in these integrated IP/Optical networks is paramount. Often there are distinct groups with separate management systems for IP data and optical networks so there must be an option for both integrated and divided responsibilities.The Alcatel-Lucent 5620 leverages multi-domain, multi-layer management that spans both domains to unify workflows, which achieves maximum efficiency across the broader IP/MPLS and optical management tool-set and OSS environment.