Hi Budi,
In my experience the Service Class name TLV in the US Flow must match exactly with the "cable service-class xxx name yyy" in the CMTS configuration otherwise you will get a modem in reject(c) state.
Can you double check that the cable modem is indeed provisioned in D11 mode? The command for that is "show cable modem mac".
Just a side note - please make sure your D11 config file for the US and DS service flows has the Service class name, the QosParamSet, and the service flow ID.
Here's an example of a working D11 config file snippet and my CMTS:
Cfg file snippet:
UsServiceFlow
{
UsServiceFlowRef 10;
QosParamSetType 7;
ServiceClassName "UP-A";
}
DsServiceFlow
{
DsServiceFlowRef 20;
QosParamSetType 7;
ServiceClassName "DOWN-A";
}
On CMTS:
cable service class 100 name UP-A
cable service class 100 upstream
cable service class 100 sched-type 2
cable service class 100 max-rate 128000
cable service class 100 max-burst 1522
cable service class 100 priority 3
cable service class 200 name DOWN-A
cable service class 200 downstream
cable service class 200 max-rate 128000
cable service class 200 max-burst 1522
cable service class 200 priority 3
HTH,
Jack