For us the old D2 configs work fine with D3 modems. Im not really aware of any generic D3 configurations you need to set per modem?
We use the open-source "docsis" tool for compiling docsis-files:
http://docsis.sourceforge.net/We use Scientific Atlanta EPC3000, EPC3010 and EPC3925 modems. With a simple uncapped source-config as this one below we peak around 180Mbps downstream and 45Mbps upstream on a node with 4x 8Mhz Qam64 DS and 3x 6.4Mhz Qam16 US available:
Main {
/* General */
NetworkAccess 1;
MaxCPE 10;
GlobalPrivacyEnable 1;
/* Encryption */
BaselinePrivacy {
AuthTimeout 10;
ReAuthTimeout 10;
AuthGraceTime 600;
OperTimeout 10;
ReKeyTimeout 10;
TEKGraceTime 600;
AuthRejectTimeout 60;
SAMapWaitTimeout 1;
SAMapMaxRetries 4;
}
/* Default upstream flow */
UsServiceFlow {
UsServiceFlowRef 1;
QosParamSetType 7;
TrafficPriority 0;
MaxRateSustained 0;
MaxTrafficBurst 4566;
MaxConcatenatedBurst 4566;
}
/* Default downstream flow */
DsServiceFlow {
DsServiceFlowRef 101;
QosParamSetType 7;
TrafficPriority 0;
MaxRateSustained 0;
MaxTrafficBurst 1600;
}
/* S-A manu. CVC cert.*/
MfgCVCData (Removed)
}
This is on a cisco ubr10k with pre2 and mc20x20 linecards.