I have basic question in terms of applying qos policy.
when implementing qos policy we have to take one way or it bidirectional traffic flow ,
if it is bidirectional we have to apply
"service-policy out" on the both incoming and outgoing interface on the router/switch so that it will cover onward and return flow.
but most of the documents I can see only considering one way traffic flow
for eg "A to B not B to A"
Is my understanding is correct?