RGPS-92222GCP-NP Series User Manual
ORing Industrial Networking Corp.
58
The function of
Unaware can be
used for
802.1QinQ (double
tag).
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 become a double-tag frame
and will be forwarded.
2. If the TPID of tagged frame is not 0x8100
(ex. 0x88A8), it will be discarded.
transmitted by
Unaware port will be
set to 0x8100.
The final status of the
frame after egressing
will also be affected by
the Egress Rule.
C-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 0x8100
(ex. 0x88A8), it will be discarded.
The TPID of a frame
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.