Network Engineer Roadmap¶

• Roadmap: https://roadmap.sh/network-engineer

1. Introduction¶

• 1.1 What are Networks
• 1.2 How Does the Internet Work
• 1.3 Role and Methodologies

2. Network Types¶

• 2.1 LAN
• 2.2 WAN
• 2.3 MAN
• 2.4 PAN
• 2.5 SAN
• 2.6 WLAN
• 2.7 Client-Server Network
• 2.8 Peer-to-Peer Network

3. Network Models¶

• 3.1 OSI Model
• 3.2 TCP/IP Model
• 3.3 Layers: Physical, Data Link, Network, Transport, Session, Presentation, Application

4. Network Devices¶

• 4.1 Routers
• 4.2 Switches
• 4.3 Hub
• 4.4 Modems
• 4.5 Access Points / Controllers
• 4.6 Firewalls
• 4.7 Load Balancer
• 4.8 Proxy

5. IP Addressing¶

• 5.1 IP Address
• 5.2 IPv4 vs IPv6
• 5.3 Public vs Private Addresses
• 5.4 IP vs MAC vs ARP
• 5.5 Subnetting
• 5.6 Subnet Masks
• 5.7 Supernetting
• 5.8 VLSM
• 5.9 CIDR
• 5.10 NAT vs PAT
• 5.11 Default Gateway

6. Network Protocols¶

• 6.1 HTTP / HTTPS
• 6.2 FTP / SFTP
• 6.3 SMTP / IMAP
• 6.4 SSH
• 6.5 SSL / TLS
• 6.6 DNS
• 6.7 DHCP
• 6.8 ARP
• 6.9 NTP / SNTP
• 6.10 SNMP

7. Routing¶

• 7.1 Routing Basics
• 7.2 Static vs Dynamic Routing
• 7.3 RIP
• 7.4 OSPF
• 7.5 EIGRP
• 7.6 BGP

8. Switching¶

• 8.1 Switching Basics
• 8.2 VLANs
• 8.3 STP
• 8.4 Link Aggregation
• 8.5 MAC Address
• 8.6 MAC Address Tables
• 8.7 VXLAN
• 8.8 VRFs

9. High Availability¶

• 9.1 High Availability Concepts
• 9.2 Failover
• 9.3 HSRP
• 9.4 VRRP
• 9.5 GLBP

10. Load Balancing¶

• 10.1 Load Balancing Basics
• 10.2 Round Robin
• 10.3 Least Connections

11. Traffic Management¶

• 11.1 Traffic Management
• 11.2 Traffic Shaping
• 11.3 Packet Prioritization
• 11.4 QoS (Quality of Service)
• 11.5 Bandwidth
• 11.6 Latency
• 11.7 Throughput

12. Wireless Networking¶

• 12.1 Wireless Networking Basics
• 12.2 Wifi Standards
• 12.3 Bluetooth Basics
• 12.4 Hotspot and Tethering
• 12.5 Wireless Security
• 12.6 WPA vs WPS
• 12.7 Mobile Networks

13. Network Security¶

• 13.1 Encryption Basics
• 13.2 ACLs
• 13.3 Security Groups
• 13.4 Network Access
• 13.5 Network Attacks
• 13.6 DoS / DDoS
• 13.7 Packet Filtering
• 13.8 Stateful Inspection
• 13.9 Circuit-Level Gateway
• 13.10 IDS / IPS
• 13.11 Next Generation Firewalls
• 13.12 Zero Trust Architecture

14. VPN and Tunneling¶

• 14.1 Tunneling / VPNs
• 14.2 Site-to-Site vs Remote Access
• 14.3 IPsec vs SSL VPN
• 14.4 GRE / IPsec Tunnels
• 14.5 MPLS VPN
• 14.6 Cloud VPN

15. Cloud Networking¶

• 15.1 Cloud Networking Basics
• 15.2 Cloud Network Types
• 15.3 Virtual Networks
• 15.4 Cloud Routing
• 15.5 AWS / Azure / GCP / Cloudflare
• 15.6 SD-WAN
• 15.7 Cloud Certifications

16. Network Automation¶

• 16.1 Network Automation Basics
• 16.2 Ansible
• 16.3 Terraform
• 16.4 Infrastructure as Code
• 16.5 APIs for Networking
• 16.6 Shell / Scripting
• 16.7 Linux for Networking

17. Monitoring and Observability¶

• 17.1 Observability
• 17.2 NetFlow / sFlow
• 17.3 Prometheus
• 17.4 Grafana
• 17.5 Datadog
• 17.6 Dynatrace

18. Troubleshooting and Tools¶

• 18.1 Common Network Issues
• 18.2 Troubleshooting Methodologies
• 18.3 Ping
• 18.4 Traceroute / Tracert
• 18.5 ipconfig / ifconfig
• 18.6 nslookup
• 18.7 netstat
• 18.8 Nmap
• 18.9 Wireshark
• 18.10 Packet Analysis
• 18.11 Speedtest

19. Network Simulators¶

• 19.1 Network Simulators Overview
• 19.2 Cisco Packet Tracer
• 19.3 GNS3
• 19.4 EVE-NG

20. DNS Resolvers¶

• 20.1 OpenDNS
• 20.2 Quad9
• 20.3 Google DNS
• 20.4 Cloudflare DNS

21. Transmission Media¶

• 21.1 Transmission Media Types

22. Certifications¶

• 22.1 CCNA
• 22.2 CCNP
• 22.3 CompTIA Network+
• 22.4 CompTIA Security+