Drop Untag Per Port Setting; Drop Tag Per Port Setting; Ingress Default Tag Per Port Setting; Packet Tag Information - KTI Networks KGS-612F User Manual

3.3.2.3 Drop Untag Per Port Setting

Enable - All untagged packets and priority-tagged packets are dropped. A priority-tagged packet
is treated as an untagged packet in this switch. Only VLAN-tagged packets are
admitted.
Disable - Disable Untagged packet filtering

3.3.2.4 Drop Tag Per Port Setting

Enable - All VLAN-tagged packets are dropped. A priority-tagged packet is treated as an
untagged packet in this switch. Only untagged packets are admitted.
Disable - Disable VLAN-tagged packet filtering

3.3.3 Ingress Default Tag Per Port Setting

Each port can be configured with one Ingress Default Tag. This ingress port default tag is used when
ingress port is in Tag-ignore mode or for the received untagged packets in Tag-aware mode. The
Ingress Default Tag includes PVID, CFI and User Priority configuration.
When Ingress port default tag is used, it is copied as packet associated Packet Tag Information for
VLAN classification. The PVID is used as index to one VLAN group in VLAN group table.

3.3.4 Packet Tag Information

Under VLAN process, every packet is associated with one Packet Tag information in packet forward-
ing operation. The tag information includes VID, CFI and User Priority data and is used for two
purposes:
•
The VID in tag is used as index for VLAN classification.
•
The tag is used for egress tag insertion if egress tagging is enabled.
The following table lists how the Packet Tag information is generated:
Tag Aware setting
Tag-ignore
Tag-ignore
Tag-ignore
Tag-aware
Tag-aware
Tag-aware
Received Packet Type
Untagged packet
Priority-tagged packet
VLAN-tagged packet
Untagged packet
Priority-tagged packet
VLAN-tagged packet
Packet Tag information source
Ingress Port Default Tag
Ingress Port Default Tag
Ingress Port Default Tag
Ingress Port Default Tag
Ingress Port Default Tag
Received packet VLAN Tag
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