User Manual Managed Switches
81
•
Ingress filtering can be controlled
•
Ingress acceptance of frames and configuration of
egress tagging can be configured independently
ATTENTION
For communication redundancy in the VLAN environment, set
Redundant Port
,
Coupling Port
, and
Homing Port
as "Trunk Port," since these ports act as the
"backbone" to transmit all packets of different VLANs to different Weidmüller
switches.
Port VLAN
Setting
Description
Factory
Default
VID ranges from 1
to 4095
Determines the port's VLAN ID (PVID).
On ingress, frames get classified to the Port VLAN if the
port is configured as VLAN 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 "Access VLAN" for ports in
Access mode and
“Native VLAN” for ports in Trunk or
Hybrid mode.
1
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.
Setting
Description
Factory
Default
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. This port type can only be
selected if port mode is Hybrid.
C-Port
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 = 0x88A8
get classified to the VLAN ID embedded in the tag.
Priority-tagged frames are classified to the Port VLAN.
If the port is configured to accept Tagged Only frames
(see Ingress Acceptance below), frames without this
TPID are dropped.
If frames must be tagged on egress, they will be tagged
