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Antaira Technologies - Industrial Ethernet Switches
LNX-2012G-SFP Series User Manual V1.0
39
C-Port, S-Port and S-Custom Port Configuration
Ingress action
Egress action
Unaware
The function
of Unaware
can be used
for 802.1QinQ
(double tag).
When the port receives untagged frames, an
untagged frame obtaining a tag (based on
PVID) is forwarded.
When the port receives tagged frames,
1. If the tagged frame with TPID=0x8100
becomes a double-tagged frame, and is
forwarded.
2. If the TPID of tagged frame is not 0x8100
(ex. 0x88A8), it will be discarded.
The TPID of the frame
is transmitted by an
unaware port that will
be set to 0x8100.
The final status of the
frame after egressing
is also effected by the
Egress Rule.
C-Port
When the port receives untagged frames, an
untagged frame obtaining a tag (based on
PVID) is forwarded.
When the port received tagged frames,
1. If there is a tagged frame with
TPID=0x8100, it is forwarded.
2. If the TPID of a tagged frame is not 0x8100
(ex. 0x88A8), it will be discarded.
The TPID of the frame
is transmitted by C-port
and will be set to
0x8100.
S-Port
When the port receives untagged frames, an
untagged frame obtaining a tag (based on
PVID) is forwarded.
When the port received tagged frames,
1. If there is a tagged frame with
TPID=0x88A8, it is forwarded.
2. If the TPID of a tagged frame is not 0x88A8
(ex. 0x8100), it will be discarded.
The TPID of the frame
transmitted by S-port
will be set to 0x88A8.
S-Custom-
Port
When the port receives untagged frames, an
untagged frame obtaining a tag (based on
PVID) is forwarded.
When the port received tagged frames,
1. If there is a tagged frame with
TPID=0x88A8, it is forwarded.
2. If the TPID of a tagged frame is not 0x88A8
(ex. 0x8100), it will be discarded.
The TPID of the frame
transmitted by S-
custom-port will be set
to a self-customized
value, which can be
set by the user using
the column of
Ethertype for Custom
S-ports.