CoS ensures that critical traffic, such as voice or video, gets higher priority compared to less critical traffic like file downloads.
Classifiers identify packets and assign them to specific forwarding classes based on criteria like IP precedence or DSCP values.
Schedulers determine how bandwidth is shared and prioritize traffic within queues.
Policing enforces traffic rate limits by dropping or remarking packets that exceed the specified rate.
The set class-of-service classifier command configures packet classification in Junos OS.
