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Step2. If the receiving packet is not an IP, but an 802.1Q VLAN tagged
packet, the device will check the 3-bit User Priority value in TCI
(Tag Control Information) field of packet tag data. By this value,
the packet is classified as high priority or low priority according
to device 802.1p priority setup table.
Tag Priority Value
Priority Options Factory Default
0
High / Low
Low
1
High / Low
Low
2
High / Low
Low
3
High / Low
Low
4
High / Low
High
5
High / Low
High
6
High / Low
High
7
High / Low
High
Step 3. If the receiving packet is an non-IP and untagged packet, the
device will classify the packet based on Port-base mode. Refer to
Port-base QoS mode for more information.
Note:
Under IP DS-TOS/802.1p mode, all incoming tagged packets will be un-
tagged on output ports.
2. Port-Base Mode
This mode called port priority mode. The priority level of a receiving
packet is determined by the configured priority of the input port where
the packet is received and the content of the packet is ignored. Each port
must be pre-configured with a priority level as follows:
Port Number Priority Options Factory Default
P 1
High / Low
Low
P 2
High / Low
Low
P 3
High / Low
Low
P 4
High / Low
Low
P 5
High / Low
Low
P 6
High / Low
Low
FX
High / Low
Low