VLAN-enabled ports are generally categorized in one of two ways, tagged or untagged. These may also be referred to as “trunk” or “access” respectively. The purpose of a tagged or “trunked” port is to pass traffic for multiple VLAN’s, whereas an untagged or “access” port accepts traffic for only a single VLAN. Generally speaking, trunk ports will link switches, and access ports will link to end devices.
Merkai documentation
Common Terms
VLAN – Virtual local area network; logical identifier for isolating a network
Trunk – A port enabled for VLAN tagging
Access – A port that does not tag and only accepts a single VLAN
Encapsulation – The process of modifying frames of data to include additional information
802.1Q – The most common encapsulation method for VLAN tagging.
Native VLAN – The VLAN associated with all untagged traffic on a trunk