In Mind The Gap, RAD provides an overview of the solutions available for connecting legacy services over Next-Generation packet switched networks and new Ethernet and IP services over traditional leased lines and SDH transport. The challenges presented by cross-generation service deployment have been intensified by the recent economic slowdown as both Enterprise users and service providers look for ways to reduce Opex and Capex by maintaining their investment in existing network equipment while at the same time maximizing their returns on new network deployments.