Will Qos on the physical interface of a Cisco router extend to subinterfaces?

Question

Cisco

i
Traffic goes both in area 0 and in area 3. It is necessary to allocate a guaranteed bandwidth for communication between 2 exchanges.
In the class, we will describe the traffic between two exchanges. For the class, we will prioritize a piece of the band. Also we will hang up on the physical interface.
R1#
policy-map POLICY
class NAME1
priority 2000
int fa0/1
service-policy output POLICY
R2#
policy-map POLICY
class NAME1
priority 2000
int fa0/2
service-policy output POLICY
Let's imagine the following situation: the interaction between the PBX goes through the area 3 link, at the same time, the area 0 link has data transfer traffic of almost 100 Mb/s. Will the physical interface take away 2 Mb / s from data transfer traffic in favor of the PBX bundle? Or can such QoS work only on a subinterface using a hierarchical setting?

Answer 1

There is such a feature, hierarchical QoS ( HQoS ). If the router supports it (or the board), then you can hang it on subinterfaces.