INS_CNGE3FE7MS4_REV– Rev. 4.30.14 PAGE 59
INSTALLATION AND OPERATION MANUAL
CNGE3FE7MS4
TECH SUPPORT: 1.888.678.9427
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. IGS-3044GP(GC) series support 4 priority queues.
QoS policy
Traffic Prioritization interface
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
Select
Apply
to set the configurations.
Help
Show help file.