In the digital universe, network devices play a fundamental role in establishing a reliable and secure computing environment. The network devices are essential components to initiate, supervise, terminate or just conduct a radical network interaction. Here, we present some of the primary network devices in use today.
Hub
A hub is the most basic of these devices. Its job is primarily to connect multiple computers or network devices together. It works by receiving a signal from one device and sending it to all the others to which it’s connected. Basically, it operates on the Physical Layer of OSI Model (Layer 1).
Switch
A switch, similar to a hub, operates on the Data Link Layer of OSI Model (Layer 2). It is a more intelligent device compared to a hub. A switch could inspect data packets as they’re received, find the source and destination device of that packet, and forward it accordingly. This ability to manage traffic helps in avoiding collisions which usually occur in hubs.
Router
Routers are more complex devices that function at Network Layer of OSI Model (Layer 3). They are responsible for routing data packets between multiple networks. They use IP addresses to identify specific machines within a network besides observing the best path for the data packet delivery. One typical example of a router is the one used in most home internet connections.
Modem
Modem, which stands for MOdulator-DEModulator, is another primary network device that allows a computer to send information over telephone lines or via a cable connection. The modem modulates the data signal into an analog signal that can travel over these mediums, and then other modems demodulate the analog signal back to digital data.
Firewall
A firewall functions at the Application Layer of OSI Model (Layer 7). It’s a security device that controls the data going in and out of a network. Firewalls can prevent unwanted access, set up security policies, and ensure a secured and private transmission of data.
Cisco Meraki System
A prime example of an advanced networking device is the Cisco Meraki system. This is a 100% cloud-managed IT solution that combines a wide set of services, among them including wireless, switching, security, enterprise mobility management (EMM), and security cameras, all controlled from a single dashboard.
Almost all aspects of the network can be managed through this dashboard, giving administrators unrivaled control and flexibility. Real-time analytics display how resources are being used, and the system allows issues to be identified and resolved remotely. Perhaps the biggest benefit of the Cisco Meraki System is its ease of use and ability to configure and manage networks over the web.
In conclusion, these network devices, from the simplest hub to a complex system like the Cisco Meraki system, are integral to our current way of life, allowing us to work, communicate and access entertainment in ways that wouldn’t otherwise be possible. As technology continues to advance, we can expect to see more exciting developments in this field.