![CTC Union IFS-1604GSM Series User Manual Download Page 331](http://html1.mh-extra.com/html/ctc-union/ifs-1604gsm-series/ifs-1604gsm-series_user-manual_2693578331.webp)
Chapter 4. Web Configuration & Operation
331
CHAPTER 4
WEB OPERATION & CONFIGURATION
Port Type:
There are four port types available. Each port type’s ingress and egress action is described in the following
table.
Action
Port Type
Ingress Action
Egress Action
Unaware
When a tagged frame is received on a port,
3.
If the tagged frame with TPID=0x8100, it
becomes a double-tag frame and is
forwarded.
4.
If the TPID of tagged frame is not 0x8100
(ex. 0x88A8), it will be discarded.
The TPID of frame transmitted by
Unaware port will be set to 0x8100.
The final status of the frame after
egressing are also affected by egress
rule.
When an untagged frame is received on a port,
a tag (PVID) is attached and then forwarded.
C-port
When a tagged frame is received on a port,
3.
If a tagged frame with TIPID=0x8100, it is
forwarded.
4.
If the TPID of tagged frame is not 0x8100
(ex. 0x88A8), it will be discarded.
The TPID of frame transmitted by C-
port will be set to 0x8100.
When an untagged frame is received on a port,
a tag (PVID) is attached and then forwarded.
S-port
When a tagged frame is received on a port,
3.
If a tagged frame with TPID=0x88A8, it is
forwarded.
4.
If the TPID of tagged frame is not 0x88A8
(ex. 0x8810), it will be discarded.
The TPID of frame transmitted by S-
port will be set to 0x88A8
When an untagged frame is received on a port,
a tag (PVID) is attached and then forwarded.
S-custom port
When a tagged frame is received on a port,
3.
If a tagged frame with TPID=0x88A8, it is
forwarded.
4.
If the TPID of tagged frame is not 0x88A8
(ex. 0x8810), it will be discarded.
The TIPID of frame transmitted by S-
custom-port will be set to an self-
customized value, which can be set
by the user using the column of
Ethertype for Custom S-ports.
When an untagged frame is received on a port,
a tag (PVID) is attached and then forwarded.
Ingress Filtering:
If Ingress Filtering is enabled and the ingress port is not a member of a VLAN, the frame from the
ingress port is discarded. By default, ingress filtering is disabled.
Frame Type:
Select the accepted frame types. Available options include All (accept all frames), Tagged (accept only
tagged frames), Untagged (accept only untagged frames). This parameter affects VLAN ingress processing. If the port
only accepts tagged frames, untagged frames received on the port are discarded. By default, frame type is set to All.
Port VLAN:
Configures the VLAN identifier for the port. The allowed values are from 1 through 4095. The default value
is 1.
NOTE:
The port must be a member of the same VLAN as the Port VLAN ID.
Tx Tag:
Determines egress tagging of a port. Untag_pvid - All VLANs except the configured PVID will be tagged. Tag_all
- All VLANs are tagged. Untag_all - All VLANs are untagged.
Summary of Contents for IFS-1604GSM Series
Page 385: ......