VLAN enabled ports are generally categorised 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. Trunk ports require more steps to successfully negotiate as a trunk. Both ends of the link must have the following in common: Encapsulation Allowed VLAN's Native VLAN
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