Rowel Telecom - 3g,4g,5g

Optical Transport Network (OTN)

The new Optical Transport Network (OTN) layer evolved over the layer-1 DWDM network for enabling more efficient convergence of traditional SONET/SDH and new data services. The OTN layer is designed to for highly effective mapping of different protocols and rates into the same 10G or 100G uplink pipe providing high bandwidth capabilities in simpler transparent manner at comparatively low cost. Furthermore, OTN infrastructure enables transport over longer distances with less regeneration sites by utilizing Forward Error Correction (FEC) mechanism embedded within the OTN layer. Thus, the OTN layer forms the most efficient and cost effective Multi Service Provisioning Platform (MSPP) over WDM infrastructure.



Advantages of Optical Transport Network (OTN)



While using OTN, layer any protocol carried over the network has the same performance monitoring information, whether it is SONET/SDH, Ethernet or Fibre channel. The OTN convergence layer is a much less complex technology for transport applications than SONET/SDH, which is reflected in the much simpler clocking scheme for instance. Each network layer that a carrier must manage creates a substantial amount of operating expense. In some carriers, an entire organizational units exist are dedicated to managing each network layer. Since operations constitute 30-40% of carriers’ annual expenses, they must minimize the number of different layers in their networks whenever possible.

The Optical Transport Network (OTN) layer is deterministic in the latency performance, in the service connection path as well as in the deterministic guarantee bandwidth for each of the service.
The OTN signal incorporates overhead optimized for efficient direct mapping for LAN, SONET/SDH and SAN signals and other lower rate client signals over carrier WDM networks.