What is an SVI and its Functionality?

C

An SVI (Switched Virtual Interface) is a virtual interface that represents a VLAN interface on a Layer 3 switch. SVIs are used to provide Layer 3 connectivity to VLANs.

Option D - OSI Layer 3 connectivity to switches is the correct answer.

SVIs are used to route traffic between VLANs, and they provide a Layer 3 gateway for hosts within each VLAN. When a host sends a packet to a destination outside its own VLAN, the packet is sent to the SVI of the VLAN, which then routes the packet to the appropriate destination.

SVIs are created in the switch's configuration and are associated with a specific VLAN. They are configured with an IP address and subnet mask that corresponds to the VLAN's network. The SVI is then used as the default gateway for hosts in that VLAN.

Option A - OSI Layer 2 connectivity to switches is incorrect because SVIs are Layer 3 interfaces and are used for routing traffic between VLANs, not for connecting switches at Layer 2.

Option B - Remote switch administration is not a functionality of SVIs. SVIs are used for routing traffic between VLANs and providing Layer 3 connectivity to hosts within VLANs.

Option C - Traffic routing for VLANs is correct in the sense that SVIs provide routing functionality for traffic between VLANs. However, this is just one of the functionalities of an SVI, and it is not a complete answer.