Optical Transport Network (OTN) for Carriers and Service Providers
Service providers in today's telecommunication market are faced with a challenge of providing high capacity services cost effectively with the shortest lead times. As a result, access network infrastructure must be flexible in design and support delivery of high-capacity services of Carrier Ethernet, MPLS, SONET/SDH, Storage Area Network (SAN), video and other demanding services such as encryption while maintaining the most efficient manageable transport solution. The fiber capacity utilization has also become a major consideration for providers to reduce their overhead costs. This lead to an increasing use of wavelength division multiplexing (WDM) enabling 96 channels of traffic to pass on different spectrally separated wavelengths over the same fiber infrastructure. The WDM layer enables most effective utilization of the existing fibers rather than investment in new construction of a new physical layer.
As a result of the growth trends, a new Optical Transport Network (OTN) layer evolved over WDM network enabling more efficient convergence of traditional SONET/SDH and new data services. The OTN layer is designed for highly effective mapping of different protocols and rates into the same 10/40/100G uplink pipe providing high bandwidth capabilities, low heat dissipation, compact rack space requirements, and comparatively low cost. Furthermore, Optical Transport Network (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.
The OTN layer also enables the use of alien wavelength service that can operate on the current deployed network and coexist with the existing services providing the benefit of privet all optical channel service to the end user and also save huge resources that are needed to migrate networks from 10G to 100G.
MSPP enables service providers to offer customers new bundled services at the transport, switching and routing layers of the network, while also dramatically decreasing the time it takes to provision new services and improving the flexibility of adding, migrating or removing customers. These provisioning platforms allow service providers to simplify their edge networks by consolidating the number of separate boxes needed to provide intelligent optical access. Thus drastically improve the efficiency of networks for transporting multiservice traffic. The MSPP platforms also reduce the number of network management systems needed, and decrease the resources needed to install, provision and maintain the network (Network World).
PacketLight's 100G Ethernet solutions offer multirate transport capability and a smooth transition from 10G/40G to 100G client interfaces. All solutions can operate over existing 10G networks and seamlessly increase their capacity to 100G network.