QTech QSW-2800 series, Руководство по настройке

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Classification process
Policing and remark: Each packet in classified ingress traffic is assigned an internal priority
value and a drop precedence value, and can be policed and remarked.
Policing can be performed based on the flow to configure different policies that allocate
bandwidth to classified traffic, the assigned bandwidth policy may be dual bucket dual color or
dual bucket three color. The traffic, will be assigned with different color, can be discarded or
passed, for the passed packets, add the remarking action. Remarking uses a new DSCP value
of lower priority to replace the original higher level DSCP value in the packet. The following
flowchart describes the operations.