Can communication occur only between different VLANs on the core switch

Traffic between devices on the same VLAN is switched normally, while communication between different VLANs requires a Layer 3 device (e. Let's explore a sample scenario: Devic...

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Oct 05, 2025

Inter-VLAN Routing: RoAS, SVIs & What Breaks First

Once ip routing is enabled and SVIs are up, the switch builds a routing table with connected routes for each VLAN subnet. That''s what enables traffic to move between VLANs at wire

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Jun 27, 2025

Integrated Routing and Bridging | Junos OS | Juniper Networks

To forward packets between different VLANs, you traditionally needed a router that connects the VLANs. However, using the Junos OS you can accomplish this inter-VLAN forwarding without using a router

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Jul 12, 2025

Why Devices on Different VLANs but on the Same Subnet Can

A common confusion arises when devices are on different VLANs but share the same IP subnet: they can''t communicate with each other. Learn why that is so and how to solve it.

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Aug 28, 2025

InterVLAN routing using Layer 3 switch

In this lesson, we will learn to configure a multilayer switch (also called Layer 3 switch) to perform inter-VLAN routing, which was previously done using an actual

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Mar 21, 2026

Understanding VLANs and Trunk Links: How the Network Diagram

The network diagram illustrates a basic implementation of Virtual Local Area Networks (VLANs) and their communication across switches. This setup enhances network efficiency, security,

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Guide
Aug 10, 2025

Inter-VLAN Routing: Connect VLAN-to-VLAN Communication

This article provides a step-by-step walkthrough, including configuring VLANs on a Cisco switch, setting up trunk ports, creating router sub-interfaces, and assigning IP addresses.

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Dec 06, 2025

Inter-VLAN Routing Configuration

However, this segmentation also creates a communication barrier, as devices in separate VLANs cannot communicate by default. Inter-VLAN routing overcomes this limitation by

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Sep 03, 2025

Routing Between VLANs & Layer 3 Switches

We wrote an article which covers Virtual Local Area Networks (VLANs) as a concept, and another article on configuring VLANs on Cisco switches. The remaining subjects to cover are the different options

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Jul 17, 2025

Understanding VLANs and Inter-VLAN Routing

Understanding VLAN tagging is essential for implementing more advanced networking concepts like inter-VLAN routing, which allows devices on different VLANs to communicate with each

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Feb 14, 2026

InterVLAN routing using Layer 3 switch | NetworkAcademy.IO

In this lesson, we will learn to configure a multilayer switch (also called Layer 3 switch) to perform inter-VLAN routing, which was previously done using an actual router.

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Jun 16, 2026

Communication between different VLAN

Solved: In my previous understanding, there is no way to communicate between two VLANs using only layer 2 . After all, this is the purpose of having VLAN. But today, I heard sth really

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