Using Simlink Blocks I tried to model the below configuration used on a Cisco router for traffic management purposes

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policy-map COS-OUT-S1/0.1
class DSCP-OUT-D1
bandwidth percent 50
random-detect dscp-based
random-detect dscp 26 39 117 20
random-detect dscp 28 19 38 20
service-policy COS-OUT-D1-S1/0.1
class DSCP-OUT-D2
bandwidth percent 25
random-detect dscp-based
random-detect dscp 18 61 122 20
random-detect dscp 20 34 68 20
service-policy COS-OUT-D2-S1/0.1
class DSCP-OUT-D3
bandwidth percent 25
random-detect dscp-based
random-detect dscp 10 78 156 20
random-detect dscp 12 51 102 20
service-policy COS-OUT-D3-S1/0.1
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Below are the actions taken to build and verify the model :

1- Investigated in details all counters of the router (related to traffic) deducing in which way they are correlated to each other
2- Translated every line in the configuration into a block
3- I have set the parameters of my model and of a router simulated with Dynamips to the same values and exposed them to same traffic rate for the same period of time and compared the results

Note : 1 - Attached with the MDL file a detailed presentation of my work
2 - If there were any abnormal behaviour while simulating the model , make sure that there is no
unconnected connection , As I faced this problem multiple times