PureStream PureLink VIP-NET-M28A Media Hub, Руководство пользователя

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VIP-NET-M28A Network Switch - USER MANUAL
VERSION 1.0
classified to the port VLAN ID. If VLAN awareness is disabled, all
frames received on the port are classified to the port VLAN ID. If
the classified VLAN ID of a frame transmitted on the port is
different from the port VLAN ID, a VLAN tag with the classified
VLAN ID will be inserted in the frame.
Port VLAN ID
Configures the VLAN identifier for the port. The allowed range of
the values is 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.
Introduction of Port Types
Below is a detailed description of each port type, including Unaware, C-port, S-port, and S-custom-port.
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 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. The TPID of a frame
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, The TPID of a frame
transmitted
by S-
custom-port will be set
to a self-customized
value, which can be set