Is the training Qualiopi certified?

Yes, Learni is a Qualiopi-certified training organization. This certification guarantees the quality of our courses and enables funding through OPCO and other mechanisms.

How can I fund my training?

Our courses are eligible for OPCO funding. Learni supports you through the funding process. A personalized quote is available upon request.

What are the prerequisites for this training?

The prerequisites for the Training Layer 2 - Mastering Ethernet and VLANs in the Enterprise training are: Basic knowledge of computing, TCP/IP, and computer use. A preliminary interview validates your eligibility.

Is the training available in person?

Yes, the Training Layer 2 - Mastering Ethernet and VLANs in the Enterprise training is available in distanciel. The format can be adapted to your needs (inter, intra, custom).

Training Layer 2 - Mastering Ethernet and VLANs… | Learni

The story of Learni

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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Methods, approaches, and teaching resources

The Training Layer 2 - Mastering Ethernet and VLANs in the Enterprise 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.

Teaching resources provided

To ensure the quality of the Training Layer 2 - Mastering Ethernet and VLANs in the Enterprise training, Learni provides the following teaching resources:

Mac or PC computers, high-speed fiber internet, whiteboard or flipchart, video projector or interactive touchscreen (for remote sessions)
Training environments installed on workstations or accessible online
Course materials, practical exercises, and supplementary resources
Post-training access to materials and 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.

* contact us for remote feasibility** ratio varies depending on the training followed

Assessment methods

The assessment of skills acquired during the Training Layer 2 - Mastering Ethernet and VLANs in the Enterprise training is carried out through:

During training: case studies, practical exercises, and professional scenarios
At the end of training: self-assessment questionnaire and skills evaluation by the trainer
After training: training completion certificate detailing acquired skills

Training accessibility

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.

Training objectives

Master the fundamentals of Layer 2 for stable professional networks

Configure Ethernet switches and VLANs in a professional enterprise setting

Develop skills in switching and MAC addressing

Implement Layer 2 security against common attacks

Optimize network performance with STP and link aggregation

Diagnose and resolve Layer 2 failures in a professional context

Training program

Module 1Layer 2 Fundamentals: OSI model, Ethernet, and MAC addresses (Wireshark tools, basic configurations)

Introduction to the OSI model focused on Layer 2, exploration of Ethernet frames and MAC addresses using Wireshark to analyze real traffic, practical exercises in packet capture on a simulated network, initial configuration of Cisco or HP switch interfaces, creation of simple topologies with Ethernet cabling, production of a frame analysis report to validate knowledge and prepare for advanced configurations.

Module 2Layer 2 Switching: Switches and MAC tables (Cisco IOS, VLAN trunking exercises)

In-depth study of Layer 2 switch operations, learning dynamic MAC tables and intelligent flooding, hands-on practice with physical switches or emulators like Packet Tracer, configuration of access and trunk ports, basic inter-VLAN connectivity tests, resolution of MAC conflicts through guided exercises, development of a switching diagram for a typical enterprise network, with personalized feedback from the trainer.

Module 3Layer 2 VLANs: Segmentation and inter-VLAN routing (Cisco configs, isolated tests)

In-depth VLAN configuration for Layer 2 network segmentation, creation of multiple VLANs on switches, implementation of 802.1Q trunking with DTP negotiation, exercises on port mobility and VTP for automatic propagation, simulation of enterprise scenarios with isolated departments, validation via ping and Wireshark captures, production of a documented VLAN plan ready for professional deployment, enhancing security and performance.

Module 4Layer 2 Protocols: STP and Security (RSTP, Port Security, advanced configurations)

Mastery of Spanning Tree Protocol to prevent Layer 2 loops, configuration of rapid RSTP and priority root bridges, exercises on loop detection and convergence, addition of security with Port Security and MAC limiting, protection against STP attacks like BPDU Guard, practical cases on enterprise redundant topologies, generation of logs and alerts, completion of a resilient network with diagrams and verification scripts.

Module 5Layer 2 Practice: Troubleshooting and Optimization (show commands tools, red thread project)

Comprehensive diagnosis of Layer 2 failures using Cisco show and debug commands, resolution of VLAN, STP, and trunking issues via real enterprise scenarios, optimization of EtherChannel aggregation for bandwidth, performance tuning and monitoring exercises, completion of the red thread project with a functional Layer 2 network, presentation and code review by the trainer, delivery of a troubleshooting checklist for immediate production use.