Is a kerberos server absolutely necessary in a DOCSIS1.1/PacketCable/VoIP deployment using a CM/MTA like an Arris? What does it do for you? Is there someting (pdf/doc) that explains it's use?
The quick and dirty answer is no, it is not required, for the rest of the answer you will need to see
http://www.cablelabs.com/specifications/PKT-SP-PROV1.5-I04-090624.pdf
and
http://www.cablelabs.com/specifications/PKT-SP-SEC1.5-I03-090624.pdf
Are there Cliff Notes?
The quick and dirty answer is no, it is not required, for the rest of the answer you will need to see
http://www.cablelabs.com/specifications/PKT-SP-PROV1.5-I04-090624.pdf
and
http://www.cablelabs.com/specifications/PKT-SP-SEC1.5-I03-090624.pdf
Are there Cliff Notes?