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Founded by passionate advocates of learning and innovation, Learni set out to make professional training accessible to everyone, everywhere in the world. Our team works in the largest cities such as Paris, Lyon, Marseille, and internationally, to support talents and organizations in their skills development.
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Don't let this gap widen
Inadequate mastery of network segmentation with VLANs leaves networks flat and vulnerable, enabling attackers to move laterally across systems unchecked.
According to Verizon's DBIR, 82% of breaches exploit poor segmentation, resulting in average breach costs of $4.45 million per incident and 280 days of detection and recovery time.
For network technicians and IT engineers, this means career-derailing incidents, personal liability in audits, and companies facing regulatory fines up to $50,000 per violation under GDPR or HIPAA.
Every delay in upskilling escalates downtime risks, eroding profits and trust—act before the next breach hits.
The Training: Mastering Network Segmentation with VLANs: Theory and Practice training is delivered in-person or remotely (blended-learning, e-learning, virtual classroom, remote in-person). At Learni, a Qualiopi-certified training organization, each program is designed to maximize skills acquisition, regardless of the training mode chosen.
The trainer alternates between demonstrative, interrogative, and active methods (through practical exercises and/or real-world scenarios). This pedagogical approach ensures concrete and directly applicable learning in the workplace.
To ensure the quality of the Training: Mastering Network Segmentation with VLANs: Theory and Practice training, Learni provides the following teaching resources:
For in-house training at a location external to Learni, the client ensures and commits to having all necessary teaching materials (IT equipment, internet connection...) for the proper conduct of the training action in accordance with the prerequisites indicated in the communicated training program.
The assessment of skills acquired during the Training: Mastering Network Segmentation with VLANs: Theory and Practice training is carried out through:
Learni is committed to the accessibility of its professional training programs. All our training programs are accessible to people with disabilities. Our teams are available to adapt teaching methods to your specific needs. Do not hesitate to contact us for any accommodation request.
Learni training programs are available for inter-company and intra-company settings, both in-person and remote. Registration is possible up to 48 business hours before the start of training. Our programs are eligible for OPCO, Pôle emploi, and FNE-Formation funding. Contact us to discuss your training project and funding possibilities.
Introduction to network segmentation; Presentation of the OSI model, Ethernet switching and the role of VLANs. Differences between physical and virtual networks. Study of VLAN types (port-based, protocol-based, management VLAN, voice VLAN...). Analysis of typical use cases (isolation, security, broadcast domain reduction).
Hands-on network administration interfaces (CLI and Web interfaces). Creating, modifying, deleting VLANs on Cisco and HP switches (concrete examples). Assigning ports to VLANs. Practice with simulation (Cisco Packet Tracer / GNS3). Validating operation with diagnostic commands (show vlan, show interfaces). Demonstration of associated network monitoring tools.
Explanation of the trunk concept and encapsulation protocols (802.1Q, ISL). Setting up trunk interfaces on multiple devices. Implementing inter-VLAN routing (router-on-a-stick, layer 3 switch). Advanced scenarios: access management, isolations, restrictions. VLAN security approach (VLAN hopping, best configuration practices, access control ACLs, production guidelines). Troubleshooting: methods to identify and correct main VLAN-related issues.
Target audience
Network technicians, system administrators, IT engineers, network students wishing to understand, configure and maintain VLANs
Prerequisites
Basic knowledge of computer networks (IP addressing, LAN topology), use of network administration tools
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