Universal network interface devices (NIDs) deliver more than high performance Ethernet services. That’s because their new design offers combined support for Carrier Ethernet and wave services on a single platform — a flexible option not offered on traditional NIDs. As a result, universal NIDs can also reduce network complexity, allow seamless and converged operations, and improve cost effectiveness.
This streamlined approach is essential for meeting today’s business and technology requirements. It allows carriers and enterprises to use both Carrier Ethernet and wave networks as simply and cost-effectively as possible, while supporting the continually rising demand for bandwidth. And at the same time, it ensures that SLAs can be maintained end to end, as networks grow more complex — including multiple protocols, more nodes and customer locations, and new business-critical applications.
As a result, the universal NID can be used for a wide range of applications. For example, network extension, network interconnect or access, and service interworking can all be supported with these customer premises devices.
Network demarcation in multi-layer and converged networks
The primary role of any NID is to help carriers maintain SLAs that define service parameters on an end-to-end basis. This involves establishing network demarcation points by placing NIDs at customer premises sites to separate the carrier network domain from the end-customer domain.
With that separation in place, the NIDs can then provide link and service OAM functions to test and monitor the carrier network all the way up to the customer premises. And the demarcation eliminates diagnostic errors that could otherwise result from end-customer activities.
With this increased visibility, the carrier can manage a network or service more efficiently — and ensure that SLA performance requirements are met. This becomes increasingly important as new service constructs are defined. In late 2016, a new initiative within the Metro Ethernet Forum (MEF) was approved to define subscriber and operator Layer 1 connection services and corresponding attributes. This initiative aims to define new wave services much like MEF Carrier Ethernet services were defined. This poses a challenge as traditional NIDs were designed and built solely for Ethernet services. Now with the move to next-generation wave services, operators need NIDs capable of handling both service constructs — and to provide an infrastructure for converging diverse digital networks.
Therefore, it’s increasingly important for a NID to support a wide range of Carrier Ethernet and wave services. This is a key reason for the development of the universal, managed NID. Instead of supporting just a single application, a universal NID, such as the Nokia 1830 PSD, can enable applications convergence as part of a comprehensive multi-layer and multiservice transport network.
Further efficiencies with automated features
Thousands of NIDs are needed at customer premises locations across a carrier’s network. So to maintain the universal NID’s potential for simplicity and cost-efficiency, it must be easy to install — and offer a small footprint and low power consumption. Ideally, its plug-and-play deployment capabilities will include automatic discovery and configuration and fast service activation, along with report creation and troubleshooting to simplify network maintenance.
For example, the Nokia 1830 PSD uses an application that can run on an installer’s smartphone. This application fully streamlines the process of installing and configuring the device, reducing the chance of installation errors while greatly simplifying and speeding up deployment.
Key applications of managed, universal NIDs
Figure 1 shows the broad range of Carrier Ethernet and wave services that can be supported with a universal NID.
Because this NID’s flexible support is provided in a single platform with a small footprint and wide temperature range, carriers can simplify their network edge and deploy in a wide range of customer premises environments. Yet they still get the network visibility needed to maintain high performance for the following key applications:
Network extension in support of wholesale or retail services
Operators may not own the access networks serving their customers. A universal NID can let operators reach customers who are located out of their footprint through the establishment of a demarcation point at the customer premises. This gives the operator visibility into the end-to-end service performance so that they are able to uphold SLAs.
In this case, the universal NID allows operators to serve customers having different locations using point-to-multipoint services. For example, it enables:
- Cloud services, with access to HPC, storage or other infrastructure through Ethernet or wave networks
- DCI/data center access (DCA)
- Direct connect via fiber infrastructure (NID to NID)
With integrated E-Line and W-Line services, operators can provide seamless connections between customer endpoints served by different network technologies, whether they are Ethernet or wave technologies. Using a universal NID, the operator can get the needed visibility to maintain high service performance.
The next step in transport network convergence
By providing network demarcation for both Carrier Ethernet and wave networks, the universal NID gives carriers a means towards transport network convergence with simpler, yet more powerful tools for maintaining SLAs. It offers an ideal next step for meeting the growing demands for bandwidth, while delivering seamless performance across today’s multi-layer networks.
To find out more about universal NIDs, such as the Nokia 1830 PSD, please see the additional resources we have provided.
Application Note: Universal Network Demarcation
White paper: A new view on wavelength services
Video: Streamlining the deployment and activation of optical services
Web page: Nokia 1830 Photonic Service Demarcation
Web page: Nokia Optical Networking Portfolio