Westermo PMI-110-F2G - Manual (Page 88)

4.6 VLAN
A Virtual LAN (VLAN) is a “logical” grouping of nodes for the purpose of limiting a
broadcast domain to specific members of a group without physically grouping the
members together. That means, VLAN allows you to isolate network traffic so
that only members of VLAN could receive traffic from the same VLAN members.
Basically, creating a VLAN from a switch is the logical equivalent of physically
reconnecting a group of network devices to another Layer 2 switch, without
actually disconnecting these devices from their original switches.
PMI Industrial Ethernet Switch supports 802.1Q VLAN. 802.1Q VLAN is also
known as Tag‐Based VLAN. This Tag‐Based VLAN allows VLAN to be created
across different switches. IEEE 802.1Q tag‐based VLAN makes use of VLAN
control information stored in a VLAN header attached to IEEE 802.3 packet
frames. This tag contains a VLAN Identifier (VID) that indicates which VLAN a
frame belongs to. Since each switch only has to check a frame’s tag, without the
need to dissect the contents of the frame, this also saves a lot of computing
resources within the switch.
VLAN Configuration group enables you to Add/Remove VLAN, configure port
Ingress/Egress parameters and view VLAN table.
Following commands are included in this group:
4.6.1 VLAN Port Configuration
4.6.2 VLAN Configuration
4.6.3 GVRP Configuration
4.6.4 VLAN Table
4.6.5 CLI Commands of the VLAN
4.6.1 VLAN Port Configuration
VLAN Port Configuration allows you to set up VLAN port parameters to specific
port. These parameters include PVID, Accept Frame Type and Ingress Filtering.
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