![ORiNG TRGPS-9084TG-M12X-BP2-MV Скачать руководство пользователя страница 109](http://html.mh-extra.com/html/oring/trgps-9084tg-m12x-bp2-mv/trgps-9084tg-m12x-bp2-mv_user-manual_1652006109.webp)
TRGPS-9084TG-M12X-BP2-MV User
Manual
ORing Industrial Networking Corp
108
6.6.2
Port Classification
QoS is an acronym for Quality of Service. It is a method to achieve efficient bandwidth
utilization between individual applications or protocols.
Label
Description
Port
The port number for which the configuration below applies
QoS Class
Controls the default QoS class
All frames are classified to a QoS class. There is a one to one
mapping between QoS class, queue, and priority. A QoS class
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 QoS class that is based on the PCP
value in the tag as shown below. Otherwise the frame is
classified to the default QoS class.
PCP value: 0 1 2 3 4 5 6 7
QoS class: 1 0 2 3 4 5 6 7
If the port is VLAN aware, the frame is tagged, and Tag Class is
enabled, then the frame is classified to a QoS class that is
mapped from the PCP and DEI value in the tag. Otherwise the
frame is classified to the default QoS class.
The classified QoS class can be overruled by a QCL entry.
Note: if the default QoS class has been dynamically changed,
then the actual default QoS class is shown in parentheses after
the configured default QoS class.
DP level
Controls the default Drop Precedence Level
All frames are classified to a DP level.
If the port is VLAN aware and the frame is tagged, then the