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Command Descriptions
167
unaware, the frame is untagged, or VLAN awareness is enabled on the port, but the
frame is priority tagged (VLAN ID = 0).
On egress, frames classified to the Port VLAN do not get tagged if Egress Tagging
configuration is set to untag Port VLAN.
The Port VLAN is called an "Access VLAN" for ports in Access mode and Native
VLAN for ports in Trunk or Hybrid mode.
Port Type Ports in hybrid mode allow for changing the port type, that is, whether a frame's
VLAN tag is used to classify the frame on ingress to a particular VLAN, and if so,
which TPID it reacts on. Likewise, on egress, the Port Type determines the TPID of
the tag, if a tag is required.
Unaware:
On ingress, all frames, whether carrying a VLAN tag or not, get classified to the Port
VLAN, and possible tags are not removed on egress.
C-Port:
On ingress, frames with a VLAN tag with TPID = 0x8100 get classified to the VLAN
ID embedded in the tag. If a frame is untagged or priority tagged, the frame gets
classified to the Port VLAN. If frames must be tagged on egress, they will be tagged
with a C-tag.
S-Port:
On ingress, frames with a VLAN tag with TPID = 0x8100 or 0x88A8 get classified to
the VLAN ID embedded in the tag. If a frame is untagged or priority tagged, the
frame gets classified to the Port VLAN. If frames must be tagged on egress, they will
be tagged with an S-tag.
S-Custom-Port:
On ingress, frames with a VLAN tag with a TPID = 0x8100 or equal to the Ethertype
configured for Custom-S ports get classified to the VLAN ID embedded in the tag. If a
frame is untagged or priority tagged, the frame gets classified to the Port VLAN. If
frames must be tagged on egress, they will be tagged with the custom S-tag.
Ingress Filtering Hybrid ports allow for changing ingress filtering. Access and Trunk ports always have
ingress filtering enabled.
If ingress filtering is enabled (checkbox is checked), frames classified to a VLAN that
the port is not a member of get discarded.
If ingress filtering is disabled, frames classified to a VLAN that the port is not a
member of are accepted and forwarded to the switch engine. However, the port will
never transmit frames classified to VLANs that it is not a member of.
Ingress Acceptance Hybrid ports allow for changing the type of frames that are accepted on ingress.
Tagged and Untagged
Both tagged and untagged frames are accepted.
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