Westermo MRI-128-F4G-PSE24 - Manual (Page 96)

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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.
PVID: The abbreviation of the Port VLAN ID. Enter the port VLAN ID. PVID allows
the switches to identify which port belongs to which VLAN. To keep things simple,
it is recommended that PVID is equivalent to VLAN IDs.
The values of PVIDs are from 0 to 4095. But, 0 and 4095 are reserved. You can’t
input these two PVIDs and 1 is the default value and 2 to 4094 are valid and
available. Accept Frame Type: This column defines the accepted frame type of
the port. There are 2 modes you can select, Admit All and Tag Only. Admit All
mode means that the port can accept both tagged and untagged packets. Tag
Only mode means that the port can only accept tagged packets.
Ingress Filtering: Ingress filtering helps VLAN engine to filter out undesired traffic
on a port. When Ingress Filtering is enabled, the port checks whether the
incoming frames belong to the VLAN they claimed or not. Then the port
determines if the frames can be processed or not. For example, if a tagged frame
from Engineer VLAN is received, and Ingress Filtering is enabled, the switch will
determine if the port is on the Engineer VLAN’s Egress list. If it is, the frame can
be processed. If it’s not, the frame would be dropped.