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Cisco 12000 Series OC-48c/STM-16c DPT Line CardsThe Cisco Dynamic Packet Transport (DPT) products define a new generation of transport technology—packet-optimized optical transport solutions. These solutions combine the bandwidth-efficient and services-The...
Cisco 12000 Series OC-48c/STM-16c DPT Line Cards
The Cisco Dynamic Packet Transport (DPT) products define a new generation of transport technology—packet-optimized optical transport solutions. These solutions combine the bandwidth-efficient and services-

The Cisco Dynamic Packet Transport (DPT) products define a new generation of transport technology—packet-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 OC-48c/STM-16c DPT line card. DPT rings are dual, counter-rotating fiber rings. Both fibers are concurrently utilized to transport both data and control traffic as depicted in.





Spatial Reuse Protocol


Spatial Reuse Protocol (SRP) is the media-independent Media Access Control (MAC)-layer protocol that enables DPT functionality in ring configurations. The SRP MAC provides the base functionality for addressing, packet stripping, bandwidth control, and control message propagation on the packet ring.


Transport Flexibility and Evolution


DPT rings run on a variety of transport technology, including Synchronous Optical Network/Synchronous Digital Hierarchy (SONET/SDH), wave-division multiplexing (WDM), and dark fiber. DPT provides carriers with the flexibility to operate packet rings over their embedded fiber transport infrastructure as well as an evolution path to packet-optimized transport for high-bandwidth IP networks. An OC-48c/STM-16c DPT node consists of two line cards. The line cards are connected via the MATE interface. Using two inter-connected line cards, the dual working fiber rings will maximize the bandwidth of both rings. Each DPT line card also provides the choice of single mode short- or long-reach optics to meet application requirements.


We prefer to ship UPS or FedEx, we also can ship DHL or US Postal Service. We can usually have it to your location overnight if needed. Additional Fee(s) may apply for special shipping. All equipment will ship from our warehouse located at our office in Springfield, MO. We can also ship overseas if needed and we only charge exact shipping costs. For most customers outside the USA and Canada, wire transfer is the only form of payment we will accept. Overseas customers can either arrange to have the equipment picked up in the USA or we will ship to your location by FedEx. We can also ship to a freight forwarder here in the USA. The purchaser will be required to pay for taxes and duties through customs in your home country.
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