Q Vlan - Planet ISW-1022M User Manual

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Remember to execute the "Save Configuration" action, otherwise the new configuration will
lose when switch power off.

5.6.1.4 802.1Q VLAN

Virtual Local Area Network (VLAN) can be implemented on the Industrial Switch to logically create different broadcast
domain.
When the 802.1Q VLAN function is enabled, all ports on the switch belong to default VLAN of VID 1, which means they
logically are regarded as members of the same broadcast domain. The valid VLAN ID is in the range of number between 1
and 4094. The amount of VLAN groups is up to 256 including default VLAN that cannot be deleted.
Each member port of 802.1Q is on either an Access Link (no VLAN-tagged) or a Trunk Link (VLAN-tagged). All frames
on an Access Link carry no VLAN identification. Conversely, all frames on a Trunk Link are VLAN-tagged. Besides, there
is the third mode—Hybrid. A Hybrid Link can carry both VLAN-tagged frames and untagged frames. A single port is
supposed to belong to one VLAN group, except it is on a Trunk/Hybrid Link.
The technique of 802.1Q tagging inserts a 4-byte tag, including VLAN ID of the destination port—PVID, in the frame. With
the combination of Access/Trunk/Hybrid Links, the communication across switches also can make the packet sent through
tagged and untagged ports.
802.1Q VLAN Port Configuration
This page is used for configuring the Industrial Switch port VLAN. The VLAN per Port Configuration page contains fields
for managing ports that are part of a VLAN. The port default VLAN ID (PVID) is configured on the VLAN Port Configuration
page. All untagged packets arriving to the device are tagged by the ports PVID.
Understand nomenclature of the Switch
■ IEEE 802.1Q Tagged and Untagged
Every port on an 802.1Q compliant switch can be configured as tagged or untagged.
• Tagged
(Trunk Link)
to delete the VLAN.
to modify group name, VLAN ID, or add/remove the members of the existing VLAN group.
Ports with tagging enabled will put the VID number, priority and other VLAN information into the
header of all packets that flow into those ports. If a packet has previously been tagged, the port
will not alter the packet, thus keeping the VLAN information intact. The VLAN information in the
tag can then be used by other 802.1Q compliant devices on the network to make
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