Quick note, VM don't use DOCSIS 2, they don't even use DOCSIS 1.1, I believe it was tried but something broke though the support around the cable system is pretty poor until they've finished rolling out the new DHCP servers and even then PCMM servers would be needed to benefit from DOCSIS 1.1+.
They use plain old DOCSIS 1.0 and don't even get that 100% right so no need to worry about state of the art hardware at the mo
Unless things have changed a lot most of VM don't know their backside from their elbow when it comes to DOCSIS and the cable knowledge is confined to a relatively few people who either built the stuff or work with it regularly and they are only listened to when excreta hits the fan. The reason for the not too wide knowledge of cable is due to VM being a ******* child of telecomms companies