Network What? Network Nodes, Explained

A network node is any device connected to a network that is capable of sending or receiving data. Things like printers, smartphones and computers are network nodes.

There are four types of network node; endpoint node, intermediate node, server node and gateway node. Read on to learn the differences and discover what each is used for.

Types of Network Nodes

Network nodes are the essential building blocks of a network. Each node is positioned within a network to send, receive, store, or create information. The nodes communicate data between each other, either using data cables, fibre optics, or wirelessly. Serving as connectors, nodes are vital to the smooth operation of a network. We should first look at the different types to understand more about them.

End Nodes

End nodes sit at the boundaries of a network. This type of node either initiates or terminates communication with a user. Examples are smartphones, printers, computers, servers, tablets, and IoT devices like light bulbs or CCTV cameras. Sometimes, end nodes are referred to as host terminals or endpoints.

Intermediate Nodes

Intermediate nodes sit within the network with a neighbour on each side. Their purpose is to forward data packets between devices to the correct destination. They don’t create or end the data transmission. Examples are routers, hubs, switches, and wireless access points.

Server Nodes

Server nodes provide a service to other devices on the network by sharing or storing information. They are a central point of resource to the network. Server nodes are also known as ‘hosts,’ examples include physical, cloud-based, and virtual servers.

Gateway Nodes

This type of node sits between two networks to act as a gate, usually translating communication protocols to allow different networks to interact. Examples include LAN/WAN for Internet, IoT, and VoIP devices.

What Are Network Nodes Used For?

Network nodes are a common feature in data communication. They are used in every network to some degree. Network nodes are commonly used in the following applications:

• Internet Communication: cloud services and websites connect to their users via network nodes.
• Data Transmission: nodes are used to transmit and exchange data within local area networks and wider area networks.
• Network Infrastructure: routers and switches direct traffic using network nodes.
• Distributed Computing: blockchain and remote networks use nodes for decentralisation.

At home, network nodes are being used more and more as we work towards a wireless home set-up. Using node protocol, our home network can be configured exactly as we want it. From our smartphone or computer, we can control heat, light, security and more.

How to Secure Network Nodes

Like all data equipment, it is essential to apply effective security measures to maintain network integrity and data confidentially. Security is a vital piece of networking, so let’s take a look at some common methods of protecting networks and their nodes:

• Firewalls – to act as a barrier to unauthorised, malicious access. Firewalls work by controlling network traffic based on predetermined security rules.
• Segmentation – dividing a network into segments allows sensitive data to be isolated. Data breaches can be managed quicker and with less risk to other areas of the network.
• Software Updates – keeping your network up to date will reduce the risk of network failures and weaknesses which are exploited by attackers.
• SOCaaS – Security Operations Centre as a Service is a fully managed solution offered to businesses looking to address cyber security.

Securing data-handling equipment is essential within any networked environment. Performance Networks offers a complete Network Security Management Service to safeguard your business. Contact us now to discuss.

How Do Network Nodes Work?

Within a network, each device has its own IP or MAC address to enable it to be identified and allow other devices to find it and communicate with it. Nodes communicate with each other using their unique address to send or receive data packets over a wired or wireless network link. Each node has its own set of rules; some nodes are responsible for data routing, while others handle data storage or data communication.

Nodes are vital parts of network design. They are used to tailor the layout and structure of a network, covering both physical and virtual components.