Alex Jovéniaux

This course enabled the acquisition of fundamental Ethernet infrastructure skills, including the configuration of active equipment such as switches and the setup of segmented networks.

Skills developed: Switch configuration, VLAN network segmentation, multi-VLAN Trunk links, inter-VLAN communication, STP/RSTP protocol.

Technologies: Cisco Packet Tracer, Ethernet Switches, VLAN, STP, EtherChannel

Context: R1.03 — IUT de Béthune — January 2025

This project involved characterizing transmission systems used in computer networks, including Ethernet and coaxial cables. The goal was to understand and quantify attenuation and delay.

The project was conducted in three complementary approaches: theoretical study using mathematical calculations, computer simulation with specialized software, and preparation for real measurements.

Skills developed: Physical link characterization (copper, fiber optic), attenuation & delay measurement, transmission system simulation.

Technologies: LTspice, MATLAB

Context: SAE 1.03 — IUT de Béthune — January 2025

Creation of this responsive portfolio site to showcase my skills and projects. Built with HTML5, CSS3, Bootstrap framework, and JavaScript for animations and interactions.

This project allowed me to put my front-end web development knowledge into practice, with optimization for all devices and browsers.

Technologies: HTML5, CSS3, JavaScript, Bootstrap 5, AOS

Context: SAÉ 1.4 "Presenting yourself on the Internet" — IUT de Béthune

AI-powered video enhancement tool running entirely locally, without cloud or API. The program uses Real-ESRGAN to increase video resolution while preserving original audio quality.

The process is split into three steps: frame extraction with FFmpeg, enhancement via Real-ESRGAN, then video reconstruction. The Tkinter GUI makes the tool user-friendly.

Technologies: Python 3.9+, Real-ESRGAN (NCNN Vulkan), FFmpeg, FFprobe, Tkinter

Supported formats: MP4, MKV, AVI, MOV

Context: Personal project

An interactive educational tool that demonstrates pathfinding algorithms in action. Watch Dijkstra's and A* algorithms explore a grid to find the shortest path between two points, with smooth step-by-step animations.

Features include drawing walls by clicking and dragging, toggling diagonal movement, generating random mazes, adjusting animation speed, and viewing live statistics. Responsive design with dark/light mode.

Technologies: React 19, Vite, Tailwind CSS 4, JavaScript

Context: Personal project

An interactive web application that demonstrates sorting algorithms through step-by-step animations with visual feedback and sound effects.

Visualizes Bubble Sort, Selection Sort, Insertion Sort and Quick Sort with adjustable speed and array size. Features color-coded states, complexity metrics, dark/light mode and audio feedback where sound frequency corresponds to bar heights.

Technologies: React 19, Vite, Tailwind CSS 4, Web Audio API

Context: Personal project

Une application de suivi de satellites en 3D temps réel qui visualise plus de 10 000 satellites actifs en orbite terrestre sur un globe interactif.

Fonctionnalités : filtrage par catégorie (stations spatiales, Starlink, GPS, météo), panneau de télémétrie détaillé, visualisation des trajectoires orbitales et géolocalisation utilisateur.

Technologies: Three.js r160, satellite.js, Celestrak API, JavaScript, WebGL 2.0

Context: Personal project

Group project simulating a professional scenario: designing and deploying the complete IT infrastructure for a small enterprise. The network is segmented into four VLANs (Admin, Personnel, Production, Video) using Cisco 2960 switches and a Cisco 800 series router, with a full IPv4 addressing plan.

The project progressed through multiple phases: equipment research and network diagram design with draw.io, simulation and testing in Cisco Packet Tracer, deployment on virtual machines with Apache web server, DHCP and DNS services (dnsmasq), and finally a physical implementation on real Cisco equipment supervised by second-year students.

Extensive testing was carried out at each stage: ARP, DNS and DHCP request captures, inter-VLAN routing validation, web server accessibility verification, and network stability assessment. All results were documented in Jupyter Notebook using Markdown.

Skills developed: IPv4 addressing & subnetting, VLAN configuration & segmentation, inter-VLAN routing, DHCP/DNS server deployment, Apache web server setup, network troubleshooting & traffic analysis, technical documentation.

Technologies: Cisco IOS (2960 / 800), Cisco Packet Tracer, VirtualBox, Apache2, dnsmasq, Wireshark, draw.io, Jupyter Notebook

Context: SAE 1.02 — IUT de Béthune — January 2026

This course covers the knowledge and skills required to design, deploy and maintain wide-area network (Internet) infrastructures. Topics include in-depth IPv4 addressing with subnetting plans, UDP and TCP transport protocols, and essential network protocols such as ARP, ICMP, DNS, DHCP, SSH, FTP and HTTP.

A major focus is placed on routing: static routing with routing tables, then dynamic routing protocols RIP (v2) and OSPF, first simulated in Cisco Packet Tracer then implemented on real equipment. Labs also cover building a Linux gateway with IP forwarding and NAT using iptables, configuring DNS and proxy access.

The course also introduces IPv6 addressing and protocols, as well as packet filtering with Cisco ACLs and Linux firewalling. Practical assessments (CTP) are based on personal write-ups, and CCNA SRWE certification is mandatory.

Skills developed: IPv4/IPv6 addressing & subnetting, static & dynamic routing (RIP v2, OSPF), Linux gateway configuration (IP forwarding, NAT/iptables), TCP/UDP transport analysis, ACL packet filtering, Wireshark traffic capture, network troubleshooting.

Technologies: Cisco IOS, Cisco Packet Tracer, Linux (Ubuntu Server), iptables, Wireshark, CCNA Netacad

Context: R2.01 — IUT de Béthune — 2025-2026