[NOTE]
1. When you enable the redundant ring function, you must disable the RSTP. The redundant ring
function and RSTP function cannot exist at the same time.
2. Remember to execute the "Save Configuration" action, otherwise the new configuration will lose
when the switch power off.
4.17 QoS Configuration
You can configure Qos setting of the every port.
■
Oos Policy:
select the Qos policy rule.
¾
Using the 8,4,2,1 weight fair queue scheme:
the switch will follow 8:4:2:1 rate to process
priority queue from Hi to lowest queue. For example: the system will process 8 high queue
packets, 4 middle queue packets, 2 low queue packets, and the one lowest queue packets at
the same time.
¾
Use the strict priority scheme:
Always higher queue will be process first, except higher
queue is empty.
■
Priority Type:
every port has 5 priority type selections.
¾
Port-base:
the port priority will follow the default port priority that you have assigned - High,
middle, low, or lowest.
¾
COS only:
the port priority will only follow the COS priority that you have assigned.
¾
TOS only:
the port priority will only follow the TOS priority that you have assigned.
¾
COS first:
the port priority will follow the COS priority first, and then other priority rule.
¾
TOS first:
the port priority will follow the TOS priority first, and the other priority rule.
■
COS priority:
set the COS priority level 0~7.
■
TOS priority:
the system provides 0~63 TOS priority level. Each level has 4 type of priority - high,
mid, low, and lowest. The default value is "Lowest" priority for each level. When the IP packet is
received, the system will check the TOS level value in the IP packet that has received. For example:
user set the TOS level 25 is high. The port 1 is following the TOS priority policy only. When the
packet received by port 1, the system will check the TOS value of the received IP packet. If the TOS
value of received IP packet is 25(priority = high), and then the packet priority will have highest
priority.
[NOTE]
QoS and Rate control cannot be existed at the same time.
