User’s Manual of IGS-20040MT
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.
Fig
ure 4-9-2 : QoS Ingress Port Classification Page Screenshot
The Page includes the following fields:
Object Description
Port
The port number for which the configuration below applies.
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.
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