Definition of Logical network

A logical network is an abstract depiction of a network setup, seen by the user as an entirely self-contained and autonomous unit, although it’s, in fact, a component of a broader system or a locale. It could also be formed by combining various networks into one, a prevalent method in virtual settings where both physical and virtual networks operate. Its structure offers increased convenience and capacity, enabling the transformation of distinct networks into solitary responsive logical networks.

Brief Explanation of Logical Network

Logical networks are not tangible, physical entities. They span across numerous physical devices, such as network nodes and networking equipment, which often participate in a different logical network or only encapsulate minor portions of a single device. For instance, in a global organization, a logical network might consist of elements sourced from a dispersed network of devices. In this scenario, site administrators from different nations may be connected via a unique logical network, ensuring efficient and streamlined operations despite geographical separations.

At the smallest virtual layer, a homogenous network could be formed with virtual network administration elements and networks confined to a single physical server. For example, a powerful physical server hosting 100 virtual machines and network management hardware could, theoretically, accommodate a minimum of 10 logical networks within its infrastructure.

Example of a Logical Network

In the context of a large organization, the physical topology – the actual layout of physical devices, network objects, and network segments – might spread over several continents. Still, the logical topology – the pattern of data flow and the logical network layout – can be designed to form a singular logical network.

For instance, network admins can create a logical interface that represents an entire network using IP addresses, subnet masks, and routing protocols. This logical network design includes network elements like bus topology, logical network nodes, and even logical network perimeters, all existing within the broader technology infrastructure.

Logical Network Diagram

A logical network diagram provides a visual overview of the network’s design. Unlike a physical network diagram, which displays the physical component and the actual placement of network devices, a logical diagram showcases the logical connections and logical network interface among devices, regardless of their physical location.

This logical network diagram distinction helps in capacity planning and clearly represents the network’s traffic flow, routing protocols, IP addresses, and other logical components. Moreover, it gives a detailed view of server roles, destination addresses, and the accurate firewalls needed for securing a public network.

Difference between Physical and Logical Networks

While both forms of networks serve critical functions in the technological ecosystem, they differ significantly. A physical network primarily pertains to the physical layout of devices, cables, and hardware – essentially, the tangible aspects of the network. This includes physical devices, their real connection, and the physical topology itself.

On the other hand, a logical network relates more to the conceptual and intangible aspects of the network, such as the arrangement of IP addresses and the way data is transferred across the network. It offers a more comprehensive picture of how various network segments communicate, even if they are distributed across different physical locations.

In conclusion, logical networks are fundamental to today’s complex technology infrastructure. They provide a cohesive framework for understanding and managing network resources effectively. For businesses looking to enhance their network’s functionality and reliability, consider using dedicated server hosting to optimize network performance further.