Optical Transport Network (OTN) Equipment Technology
The OTN layer evolved over Layer-1 of the DWDM network for enabling more efficient convergence of traditional SONET/SDH transport and new data services, into a common optical transport network layer.
The optical transport network (OTN) and WDM layers make up a generic Layer-1 transport network, enabling different service types to coexist and share the same infrastructure transparently, without affecting each other’s performance. As an example, service providers can offer any combination of SONET/SDH services, data services such as Layer-3 multiprotocol label switching (MPLS) or Layer-2 metro Ethernet, and storage and video services, on the same optical network backbone infrastructure.
Einsof OTN equipment includes muxponders and transponders, enabling connectivity over long distances based on ITU G.709, with full performance monitoring and management.
OTN Product Family
Einsof solutions are ITU G.709 standards-based and can interface with any existing third party OTN network. The OTN layer is designed for highly effective mapping of different protocols and rates into the same 10G (OTU2), 100G (OTU4), 200G (OTUC2), or 400G (OTUC4) uplink, providing simpler, transparent, high bandwidth capabilities at a comparatively low cost.
Key Advantages of PacketLight OTN Equipment
Extended Distance and Reduced Regeneration Needs
Einsof OTN equipment enables transport over longer distances with fewer regeneration sites, thanks to integrated Forward Error Correction (FEC) embedded within the layer. This forms an efficient and cost-effective multi service provisioning platform (MSPP) over long haul and metro WDM infrastructure.
FEC enhances optical signal-to-noise ratio (OSNR) by 6-8 dB, minimizing the need for expensive regenerator sites typically required in traditional SONET/SDH networks (see Figure 1).
Figure 1: Diagram of Long OTN Link with No Need for Regenerators
Simplified Performance Monitoring
Any protocol (SONET/SDH, Ethernet or Fibre Channel) carried over the OTN layer shares the same OTN performance monitoring information.
PacketLight OTN equipment enables performance monitoring of the OTN layer alone, regardless of the service type transported over the network, simplifying and reducing monitoring costs and resources.
Operational Cost Savings
Einsof’s OTN equipment enables effective operation, administration, maintenance, and provisioning (OAM&P) built into the signal format. This allows for efficient remote management and comprehensive monitoring, resulting in significant operational cost reductions.
Figure 2: Diagram of OTN Mapping of Signals
The OTN signal incorporates overhead optimized for efficient direct mapping of LAN, SONET/SDH and SAN signals and other lower rate client signals over carrier WDM networks (see Figure 2, above).
Efficient Multi-rate, Multi-service Provisioning
Our OTN equipment supports the mapping of multiple protocols and rates into a single uplink. This functionality enables the coexistence of various service types, such as SONET/SDH, MPLS, metro Ethernet, storage, and video, on the same optical network infrastructure without affecting performance.