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IGS-9084GP-FB2 Series User Manual
ORing Industrial Networking Corp
67
untagged frame obtains a tag (based on PVID)
and is forwarded.
When the port receives tagged frames:
1. If the tagged frame contains a TPID of
0x8100, it will be forwarded.
2. If the TPID of tagged frame is not 0x8100
(ex. 0x88A8), it will be discarded.
transmitted by C-port
will be set to 0x8100.
S-port
When the port receives untagged frames, an
untagged frame obtains a tag (based on PVID)
and is forwarded.
When the port receives tagged frames:
1. If the tagged frame contains a TPID of
0x8100, it will be forwarded.
2. If the TPID of tagged frame is not 0x88A8
(ex. 0x8100), it will be discarded.
The TPID of a frame
transmitted by S-port
will be set to 0x88A8.
S-custom-port
When the port receives untagged frames, an
untagged frame obtains a tag (based on PVID)
and is forwarded.
When the port receives tagged frames:
1. If the tagged frame contains a TPID of
0x8100, it will be forwarded.
2. If the TPID of tagged frame is not 0x88A8
(ex. 0x8100), it will be discarded.
The TPID of a frame
transmitted by
S-custom-port will be
set
to
a
self-customized value,
which can be set by
the user via
Ethertype
for Custom S-ports.
Below are the illustrations of different port types: