Configure per port priority level.
Port 1 ~ G1& 2: each port has 4 priority levels – High, Middle, Low, and Lowest.
Click
Apply 
.
COS Configuration
Set up the COS priority level.
COS priority: Set up the COS priority level 0~7
Click
Apply 
.
TOS Configuration
Set up the TOS priority.
TOS priority: the system provides 0~63 TOS priority level. Each level has 4 types 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 port 1 packet received, 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.
Click
Apply 
.
SNTP Configuration
You can configure the SNTP (Simple Network Time Protocol) settings. The SNTP allows you to synchronize switch clocks in the Internet.
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