the thing is that you can configure all the QoS you want inside the DMVPN / GRE, but it will have no effect unless the ISP is proving QoS too. That is, your original packet DSCP value is copied in the outer header, to allow the transport network to apply QoS.
I see that you apply service policy on fastethernet, my comment would be that since it is unlikely the fastethernet provides backpressure (is never congested), no application of QoS will occur. You can verify this with show interface and service-policy.
The only effective place to configure QoS is where there is congestion, or where bandwitdh is artificially reduced.
Due to the architecture of the Network (it is a DoD network... ) The FA interface is the primary interface for traffic destined for the DoD portion of the network (180 nodes in a TDMA mesh each location having 10 - 50 VoIP phones running G711uLaw; the government did not want to spring for DSP farms at all of the CME locations though we are slowly getting to where we can use G729r8 between the locations) and the transit interface for DoD traffic destined for the commercial networks. Therefore, port utilization is high resulting in congestion which did require the use of QoS to improve call quality.
I did not include the rest of the configs that we use as they were not pertinent to this particular discussion, but had you seen them, you would see why it is aplied there.
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