· VLANs are broadcast domains defined within switches to allow control of broadcast, multicast, unicast, and unknown unicast within a Layer 2 device. · VLANs are defined on a switch in an internal database known as the VLAN Trunking Protocol (VTP) database . After a VLAN has been created, ports are assigned to the VLAN. · VLANs are assigned numbers for identification within and between switches. Cisco switches have two ranges of VLANs, the normal range and extended range . · VLANs have a variety of configurable parameters, including name, type, and state. · Several VLANs are reserved, and some can be used for internal purposes within the switch. Creation of an Ethernet VLAN VLANs are created on Layer 2 switches to control broadcasts and enfor...
No matter how sophisticated the technology is , It still takes people !