Recently I have study about VLAN (virtual LAN). Its a common that all end-devices of one VLAN have one unique and same subnet and subnet mask like a separate network. And one VLAN host must use a layer 3 device (router, layer 3 switches) for communicating with another VLAN host, which is called inter-VLAN routing.
For inter-VLAN routing, we can use a multi-layer switch SVI configuration. But I am confused about the SVI configuration.
Is it possible to configure an SVI port for more than one VLAN?
A switch virtual interface (SVI) is a binding of a layer-3 address to a layer-2 instance (VLAN). As a VLAN has no physical representation, that interface is virtual.
Usually, there is a single SVI for a VLAN, used for management or routing (between SVIs or routed interfaces). If required, most devices allow you to bind multiple SVIs to a VLAN for multiple addresses or even subnets.
You cannot bind a single SVI to multiple VLANs since a specific IP address cannot exist in multiple VLANs simultaneously.