The Cisco Dynamic Packet Transport (DPT) products define a new generation of transport technologypacket-optimized optical transport solutions. These solutions combine the bandwidth-efficient and services-rich capabilities of IP routing with the bandwidth-rich, self-healing capabilities of fiber rings to deliver fundamental cost and functionality advantages over existing solutions.
Cisco Systems, Inc. has developed the Cisco 12000 Series 1-Port OC-48c/STM-16c DPT Line Card. DPT rings are dual, counter-rotating fiber ringsboth fibers are concurrently utilized to transport both data and control traffic.