Background
Mar-98: Docsis 1.0 does not properly address IP Multicast
- CM was defined to be a simple bridge
- Mechanism needed to dynamically filter downstream multicast at CM
- First addressed at Docsis Vendors meeting Apr-1998
- Abramson, H., ‘IP Multicasting in an MCNS Data Network’, April 01, 1998 (Memo and Presentation submitted to April 16, 1998 Docsis Vendors Mtg)
Aug-98: Initial IPCDN Contributions Focused on Conditional Access
- Fellows, J., ‘Cable Device IGMP Proxy MIB for DOCSIS Compliant Cable Modems’, draft-ietf-ipcdn-igmp-proxy-mib-00.txt
- St. Johns, M., ‘IP Multicast MIB’, a proposal distributed to the August 1998 IETF IPCDN Working Group
Sep to Nov-98: Discussion Leads to IGMPv2 and Docsis 1.1 ‘rules’ for CM and CMTS to Solve Dynamic Filtering