Lantronix SISPM1040-xxxx-L3 Web User Guide
33856 Rev. A https://www.lantronix.com/ 111
the tag. Otherwise the frame is classified to the default CoS. The classified CoS can be overruled by a QCL entry.
Note: If the default CoS has been dynamically changed, then the actual default CoS is shown in parentheses
after the configured default CoS.
DPL: Controls the default DPL value. All frames are classified to a Drop Precedence Level. If the port is VLAN
aware, the frame is tagged and Tag Class. is enabled, then the frame is classified to a DPL that is mapped from
the PCP and DEI value in the tag. Otherwise the frame is classified to the default DPL. The classified DPL can be
overruled by a QCL entry.
PCP: Controls the default PCP value. All frames are classified to a PCP value. If the port is VLAN aware and the
frame is tagged, then the frame is classified to the PCP value in the tag. Otherwise the frame is classified to the
default PCP value.
DEI: Controls the default DEI value. All frames are classified to a DEI value. If the port is VLAN aware and the
frame is tagged, then the frame is classified to the DEI value in the tag. Otherwise the frame is classified to the
default DEI value.
CoS ID: Controls the default CoS ID value. Every incoming frame is classified to a CoS ID, which later can be
used as basis for rewriting of different parts of the frame.
Tag Class: Shows the classification mode for tagged frames on this port. Click the linked text to configure the
mode and/or mapping (see below).
Disabled: Use default CoS and DPL for tagged frames.
Enabled: Use mapped versions of PCP and DEI for tagged frames.
Note: This setting has no effect if the port is VLAN unaware. Tagged frames received on VLAN unaware ports are
always classified to the default CoS and DPL.
DSCP Based: Click to Enable DSCP Based QoS Ingress Port Classification.
WRED Group: Controls the WRED group membership (group 1, 2, or 3). Weighted Random Early Detection is an
active queue management mechanism that provides preferential treatment of higher priority frames when traffic
builds up within a queue. A frame's DPL is used as input to WRED. A higher DPL assigned to a frame results in a
higher probability that the frame is dropped during times of congestion.
Ingress Map: Controls the Ingress Map selection through the Map ID. A valid Ingress Map ID can be 0-255.
An empty field indicates no map selection.
Egress Map: Controls the Egress Map selection through the Map ID. A valid Egress Map ID can be 0-511.
An empty field indicates no map selection.
Buttons
Apply: Click to save changes.
Reset: Click to undo any changes made locally and revert to previously saved values.
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