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User’s Manual of GS-6320 Series Managed Switch
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4.4.1.1 QoS Port Classification
This page allows you to configure the basic QoS Classification settings for all switch ports. The Port classification screen in
Figure 4-4-1-1 appears.
Figure 4-4-1-1: QoS Ingress Port Policers Page Screenshot
The page includes the following fields:
Object Description
• Port
The port number for which the configuration below applies.
• CoS
Controls the default CoS value.
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, the frame is tagged and Tag Class. is enabled, then the frame is classified
to a CoS that is mapped from the PCP and DEI value in 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.