User’s Manual of IGS-604HPT-M12
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4.9.3 Port Classification
This page allows you to configure the basic QoS Ingress Classification settings for all switch ports. The Port Classification
screen in Figure 4-9-2 appears.
Figure 4-9-2 : QoS Ingress Port Classification Screenshot
The page includes the following fields:
Object Description
ï‚· Port
The port number for which the configuration below applies.
ï‚· CoS
Controls the default class of service.
All frames are classified to a CoS. There is a one to one mapping between CoS,
queue and priority. A CoS of 0 (zero) has the lowest priority.
If the port is VLAN aware and the frame is tagged, then the frame is classified to
a CoS that is based on the PCP value in the tag as shown below. Otherwise the
frame is classified to the default CoS.
PCP value:01234567
CoS value:10234567
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.
All means all ports will have one specific setting.
Contro
ls the default drop precedence level.
All frames are classified to a drop precedence level.
If the port is VLAN aware and the frame is tagged, then the frame is classified to
a DPL that is equal to the DEI value in the tag. Otherwise the frame is classified
to the default DPL. The classified DPL can be overruled by a QCL entry.
ï‚· DPL