class
A class defines the packets in a sub-flow — the second stage of classification.
Classes are numbered 0
to 255
. QoS determines the class in the first stage of classification where a set of packet matching rules decide which numbered class to assign a packet to.
You cannot configure a class with the value of 0
. Class 0
is the default class and uses the default profile — that is, class 0
is reserved for default traffic, such as traffic that does not fall into any other classes.
0
and thus use the default profile.QoS will try to match classes in numerical order, starting at class 1
.