DNN: what it is and how it works within mobile networks and IoT

DNN (Data Network Name) is the name of a data network that a device connects to within a mobile network. It is the successor of the well-known APN (Access Point Name) and is used in 4G and especially 5G networks.

Within IoT and connectivity, the DNN determines how and through which network path data from devices is routed.

Summary

DNN is the name of a data network within mobile networks.

Important to remember:

• DNN stands for Data Network Name
• successor of APN in 5G
• determines how data is routed
• used for network access
• important for IoT connectivity

What a DNN exactly is

A DNN is an identification of a specific data network within the infrastructure of a mobile operator. It indicates through which network or service a device sends data.

This can be a public internet network, but also a private network or a specific IoT environment.

The DNN therefore determines where the data of a device is sent.

How a DNN works

When a device connects to a mobile network, it uses a DNN to access a specific data network.

In practice, this means that the SIM and the network together determine which DNN is used. Based on this, a data connection is established and traffic is routed to the correct destination.

The DNN plays a role in establishing a so-called data session.

DNN and APN

DNN is the modern variant of APN.

APN (4G and earlier)

Determines access to a data network within mobile networks.

DNN (5G)

Performs the same function, but is integrated into the 5G architecture.

Although the functionality is similar, DNN is better aligned with modern networks.

Applications within IoT and networks

DNN is used in various applications.

Examples:

• connection to public internet services
• private networks for enterprises
• IoT platforms and backend systems
• secure data connections
• network segmentation

In these applications, the DNN determines how data is processed.

Advantages of DNN

DNN provides flexibility in how data is routed within a network.

It makes it possible to use different data networks for different applications. Additionally, it supports advanced features such as network slicing in 5G.

For IoT, this provides more control and scalability.

Implementation of DNN in IoT solutions

When using DNN, there are several important considerations.

Configuration in devices

Devices must be correctly configured to use the appropriate DNN.

SIM and profile management

The SIM determines which DNNs are available.

Network configuration

Operators must support the correct DNN settings.

Security

Use private DNNs for secure communication.

Considerations for DNN

Although DNN provides flexibility, there are also considerations.

Incorrect configuration can lead to connectivity issues. Additionally, complexity can increase when using multiple DNNs.

It is also important to ensure compatibility with both network and device.

Why DNN is important

DNN makes it possible to efficiently and securely route data within modern mobile networks. This is essential for IoT applications and 5G connectivity.

It provides control over how devices connect and communicate.

Conclusion

DNN is the name of a data network within mobile networks and is the successor of APN in 5G. It determines how data from devices is routed and processed.

For organizations working with IoT, DNN provides a flexible and scalable way to manage connectivity.

For more information, please contact via phone number +31-85-0443500 or by email at info@thingsdata.com.