PACSystems Ethernet Switch SLM080 User Manual
Section 5
GFK-3125A
Jan 2020
Web Management
48
5.2.6
Traffic Prioritization
Traffic Prioritization includes 3 modes: port base, 802.1p/COS, and TOS/DSCP. By traffic prioritization
function, you can classify the traffic into four classes for differential network application.
5.2.6.1
Qos policy
Figure 34: Policy
The following table describes the labels in this screen.
Label
Description
QOS Mode
Port-base: the output priority is determined by ingress
port.
COS only: the output priority is determined by COS only.
TOS only: the output priority is determined by TOS only.
COS first: the output priority is determined by COS and
TOS, but COS first .
TOS first: the output priority is determined by COS and
TOS, but TOS first .
QOS policy
Using the 8,4,2,1 weight fair queue scheme: the output
queues will follow 8:4:2:1 ratio to transmit packets from
the highest to lowest queue. For example: 8 high queue
packets,
4 middle queue packets, 2 low queue packets, and the one
lowest queue packets are transmitted in one turn.
Use the strict priority scheme: always the packets in
higher queue will be transmitted first until higher queue is
empty.
Apply
Click
“
Apply
”
to set the configurations.
Help
Show help file.