A corporate network is the communication system that connects computers, servers, printers, and other devices, enabling data exchange, internet access, and the use of applications and services essential to daily operations.

In essence, it is the foundation that ensures that all employees, whether internal or remote, can work in an integrated and productive manner, accessing the necessary resources efficiently and securely.

Why is scalability so important?

It is essential for the following reasons:

• Business growth: as the company hires more employees, opens new branches, or launches new products/services, the network needs to absorb the increase in the number of users and traffic volume. A non-scalable network will result in slowdowns, bottlenecks, and outages.
• Adoption of new technologies: The network must be able to integrate new technologies, such as cloud solutions, IoT (Internet of Things), or high-definition video conferencing, without requiring a complete overhaul.
• Cost reduction: It avoids the costly rework of replacing or redesigning the infrastructure with every small growth.

Step by step to effective network planning

Planning a corporate network requires a methodical approach that considers both the present and the company’s future projections.

1. Assessment and mapping 

• Complete inventory: list all current devices, applications, services, and operating systems.
• User and traffic estimates: project the number of users and the type of traffic that the network will need to support.
• Business requirements: Understand the company’s priorities. If there is remote work, VPN and secure access are crucial. If there are branches, WAN connectivity should be prioritized.

2. Definition of network architecture and topology

• Topology: choose the physical and logical layout of the network that best suits the environment.
• Segmentation: divide the network into logical segments (VLANs) to separate departments, server traffic, guest Wi-Fi, and IoT devices. 
• IP addressing: plan the distribution of IP addresses in an organized manner for each segment.

3. Choice of equipment and physical infrastructure

• Network hardware: select high-performance routers, manageable switches, and robust Wi-Fi access points.
• Servers and backup: define the need for internal servers and the backup strategy.
• Structured cabling: use high-quality cables to ensure high bandwidth and reliability, even if the maximum speed is not used today.

4. Implementation of multi-layered security measures

• Firewall: install and configure next-generation firewalls to inspect and control traffic, and maintain security solutions on endpoints (computers and end devices).
• Access: implement strict access control policies and use strong authentication (such as multi-factor authentication – MFA).
• VPN for Remote Access: ensure that remote employees access the network exclusively through a secure VPN.

Conclusão

By following these steps, the company establishes a network that not only meets its current needs but is also prepared to accompany its future growth safely and efficiently, ensuring business continuity and resilience.