АМАТЕК AN-SGM28P24-400 [81/322] Vlan port member type

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6.1.3 VLAN port member type

Switches support port based VLAN and 802.1Q based VLAN 。A VLAN consists of two

port member types: untagged members and tagged members。A VLAN can include both a

untagged port member and a tagged port member。

A VLAN can have no port member, and can also have one or more port members。When a

port belongs to a VLAN, it can be a member of VLAN or a member of tagged in untagged。

A port can belong to one or more VLAN tagged or untagged members. If a port belongs to

two or more tagged members of VLAN, this port is also called the VLAN relay port。A port can

also belong to one or more untagged members of VLAN and to tagged members belonging to

another or more VLAN。

6.1.4 Default VLAN of port

The port has only one default VLAN, and the default VLAN is used to determine the VLAN

that is not labeled or marked with a VID 0 input from the port。The default VLAN is also referred

to as port VID or PVID. By default, the default VLAN of the port is 1。

6.1.5 Port VLAN mode

There are three VLAN modes in port: ACCESS mode, TRUNK mode and HYBRID mode.

When the user configured the port VLAN, the VLAN mode of the port must first be specified。

The port of the ACCESS mode is an access port, which is directly oriented to the user. The

port can only belong to a VLAN member of the untagged, and the default VLAN is the user

specified VLAN. When the port only belongs to a VLAN member of untagged, the VLAN mode

of the port can be specified as the ACCESS mode。

TRUNK port is a trunk port, and the switch directly connected, the port can belong to one or

more VLAN members of the tagged, but does not belong to any VLAN member of the untagged,

the default VLAN port is 1, can not be changed。

The port of the HYBRID mode is a relay port, which is directly connected to the switch. The

port can belong to one or more tagged members of the VLAN and / or one or more untagged

members of the VLAN. The default VLAN of this port can be changed。