You're starting a career in computer networking. What are the most important technical skills to master?

1 Networking fundamentals

The first skill you need is a solid understanding of the basics of networking, such as network architectures, topologies, protocols, standards, and devices. You should be familiar with the OSI and TCP/IP models, the common types of cables and connectors, the functions of routers, switches, hubs, and firewalls, and the roles of network services like DHCP, DNS, and NAT. You can learn these concepts from online courses, books, or certifications like CompTIA Network+ or Cisco CCNA.

3 Network security

The third skill you need is the knowledge of how to protect networks from various threats and attacks, such as malware, phishing, denial-of-service, man-in-the-middle, and brute force. You should be familiar with the principles and practices of network security, such as encryption, authentication, authorization, firewall rules, VPNs, and intrusion detection and prevention systems. You should also be aware of the common network security tools and techniques, such as antivirus software, password policies, encryption protocols, and penetration testing. You can learn these skills from online courses, books, or certifications like CompTIA Security+ or Cisco CCNP Security.

4 Network troubleshooting

The fourth skill you need is the competence to diagnose and resolve network problems, such as connectivity issues, performance bottlenecks, configuration errors, or security breaches. You should be able to use various network troubleshooting tools and methods, such as ping, traceroute, ipconfig, netstat, wireshark, nmap, and the OSI model. You should also be able to follow a logical and systematic approach to network troubleshooting, such as identifying the problem, isolating the cause, implementing a solution, and verifying the results. You can practice these skills with online simulations, scenarios, or real-world projects.

5 Network automation

The fifth skill you need is the proficiency to automate network tasks and processes, such as configuration management, device provisioning, monitoring, reporting, and backup. Network automation can save time, reduce errors, improve efficiency, and enhance scalability. You should be able to use various network automation tools and frameworks, such as Ansible, Puppet, Chef, Python, PowerShell, and Cisco DevNet. You should also be able to write and execute scripts, commands, and APIs to automate network functions. You can learn these skills from online courses, books, or certifications like Cisco DevNet Associate or Professional.

6 Network communication

The sixth skill you need is the aptitude to communicate effectively with different stakeholders, such as clients, managers, colleagues, and vendors. Network communication involves both technical and non-technical aspects, such as explaining network concepts, documenting network designs, presenting network solutions, negotiating network requirements, and providing network support. You should be able to use clear, concise, and courteous language, adapt to different audiences and situations, and use appropriate communication channels and tools. You can improve these skills by practicing with peers, mentors, or online communities.

7 Here’s what else to consider

This is a space to share examples, stories, or insights that don’t fit into any of the previous sections. What else would you like to add?