A Layer 2 switch is designed to forward Ethernet frames within a network using MAC addresses. It does not need an IP address for data transmission between connected devices. Layer 2 switches operate at OSI Model Layer 2 (data link), hence. A switch working at layer 2 would not require VLAN interfaces and thus would not have IP addresses assigned to these. Let's explore this concept deeply—why an IP address is needed, how it is used, what happens without it, and why it doesn't make the switch operate as a router. But the moment you want to manage, monitor, or update that switch remotely, it needs an IP address so you can actually reach it over the. Layer 2 switches can be configured with an IP address so that they can be remotely managed by an administrator.