Resilient Packet Ring (RPR) is gaining rapid momentum within the industry, said Infineon, and will play a critical role in offering service providers the ability to create high-speed metropolitan networks that transport voice and data traffic efficiently while lowering capital expense and ongoing operational expenses. RPR, a Layer Two media access control technology, significantly increases the bandwidth efficiency of service provider networks by using twice the capacity of traditional SONET/SDH rings. RPR delivers dynamic bandwidth management while preserving the same kind of protection and resiliency found in SONET/SDH networks.