Are you ready for OTN?

Are you ready for OTN

Instant access, low-latency, always on and always connected. That’s the world we live in today. And as the demand for bandwidth increases at an accelerating pace, new solutions for transport networks are needed. The problem is the dominant networking technologies used today-synchronous optical networking (SONET) and synchronous digital hierarchy (SDH) networks-are growing obsolete.

The solution? Optical transport network (OTN) technology, a set of optical network elements connected by fiber-optic links and based on WDM technology. It is the only viable technology that will allow communications and network operators to efficiently and cost-effectively increase the number of new services to satisfy the demands of business customers for more sophisticated e-commerce, mobile banking, industrial automation, Internet of Things (IoT) and other applications.

Network equipment companies too must step up to support this demand by upgrading their networks and offering new value-added services. This includes optical switches, transport and packet platforms, as well as network design, optimization, maintenance and support services.

OTN offers a roadmap for scalability beyond 100G and 400G rates with guaranteed service levels for all user. As with any technology, the primary challenge for service providers is the ability of OTNs to satisfy the demand for new hardware and management systems. This challenge is growing more acute because of the shrinking window operators have to recover their network outlay costs and their need to focus on developing new value-added services, which are core business drivers.

The major driver for OTN is the increasing demand for bandwidth from both residential and business customers. Residential internet use is rising for a variety of reasons: growing demand for cloud storage of personal information, online gaming, online shopping, staying connected over long distances, social media, video chatting and more. All of these applications require communications and network service providers to deliver more capacity on their networks.

The global OTN market is expected to grow at a double-digit compounded annual rate and reach close to $40 billion by 2025. APAC is forecast to have the highest growth rate with China leading the market in total spend. The North American market will lead in regional spend and adoption.

There are a number of reasons OTN is on such a strong growth trajectory.

Scalability beyond 40G, 100G and 400G: SDH and SONET are not efficient for Ethernet or IP packet traffic, or high-bandwidth services requiring speeds of 100 Gigabits per second or higher.
Reliability: Connection monitoring capabilities built into the technology enable extensive performance monitoring, coupled with built-in capabilities for service protection and service availability.
Flexibility: OTN technology supports rapid provisioning for adding new services or making changes in existing services, which improves the agility of the network.
Security: OTN-channelized links and hard partitioning of traffic onto dedicated circuits ensures a high level of privacy and security.
Cost optimization: OTN reduces the overall cost of transport by using standardized frame structures to transport multiple clients on a single wavelength.
Deterministic: Dedicated, specific and configurable bandwidth guarantees network capacity and managed performance for each client without contention between concurrent services or users.
Infrastructure agility: OTN supports network manipulation with a control plane. Higher-layer applications, management applications, OSS applications and cloud operating systems can use the control plane to create an agile and responsive real-time network.
Virtualized network operations: The capability to provide dedicated virtual circuits to network users enables operators to partition an OTN-switched network into optical virtual private networks (O-VPNs).

The business imperative for networking OEMs and operators is to adopt new technology rapidly at the lowest possible cost, so it frees them up to focus on market-share acquisition by launching value-added services. Aricent is well positioned to provide this capability with its licensable software framework for OTN equipment, which provides software for both the network element and the network management system (NMS). This enables OEMs to rapidly assemble the core networking aspects of an OTN offering while keeping their focus on customer and market developments.

Aricent’s offering is the first of its kind in the transport network market. Services include product definition, design, development, system integration, testing, validation and sustenance to customers. The high level of integration and the mature software can lower costs and improve time-to-market dramatically for network equipment manufacturers and network operators worldwide.

For more information on OTN technology please click here.

For a consultation about Aricent’s OTN framework email us at


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