Excuse me switches, routers, each physical interface and virtual interface have? Virtual interface to create is under a physical interface? Beginners in learning to switch and router configuration of each interface to create switch not sure, please help explain, thank you.

CodePudding user response:

Personally think that the virtual interface of the router is dependent on the physical interface, is to create the virtual interface, on the physical interface for the layer 3 switches, virtual interface is a VLAN interface,

CodePudding user response:

Upstairs said routing interface, it can be understood, but switches, virtual interface, general like vlanif mouth, of which there is no specific physical mouth, all of the same vlan physical mouth, when three layers, are to docking with the vlanif mouth, so general vlanif gateway IP address as this vlan

CodePudding user response:

Cisco devices on the inherent router port belong to physical mouth; Like svi, loopback, routing and upstairs said subinterface belong to virtual interface, interface need to create the physical port, svi and loopback can create directly in the layer 3 switches and routers,

CodePudding user response:

Physical port is the interface devices, such as business, the console port, the logical interface of virtual mouth there is no entity, such as vlanif, dialer, loopback