#7thingsWeLearntAboutVlans

Some of the key things we learnt about Vlan are:

Vlan ID can range from 0-4095, in some devices Vlan 1 is usually the default Vlan. Also, vlans 1-1005 is regarded as Standard Vlan while from 1006-4094 is called extended vlans. 0 and 4095 are reserved.
When you write erase a cisco switch, Vlan information will not be deleted unless you the delete from it the Vlan database also known as the Vlan.dat
VLAN tagged Ports or “trunked” port allows traffic to pass from multiple VLANs, whereas an untagged ports or “access” port accepts traffic for only a single VLAN.
Enterprise Virtual LAN Security can be implemented and enhanced using Vlan Access Map and VLAN Segmentation
Inter-vlan routing is an act or technique of allowing Vlans with different networks to interact with each other.
VTP also know as Vlan Trucking protocol, is used to propagate Vlan information using either server, client or transparent modes.
In a switch interface both voice and data vlans can be assigned to a single interface.