Hello,
The DOCSIS 1.0/1.1 specs are broken out into several categories. Major
categories of interest would be:
RFI: Radio Frequency Interface - Details the PHY/MAC layer of DOCSIS
focusing on CM to CMTS protocol interop.
OSSI: Operation Support System Interface Spec - Details SNMP protocol
interopability and MIB specific issues.
BPI/BPI+: Baseline Privacy Spec - Details CM to CMTS encryption and BPI+
includes certificate based authentication.
There are additional specification categories such as: CMCI (Cable
modem to CPE Interface Spec), NSI (CMTS Network side interface spec), TR -
Telco Return spec, etc..
Cablelabs also maintains ATP's (Acceptance Test Plans) which detail the
sets of tests performed to verify DOCSIS 1.0/1.1 interoperability.
these will be of interest to vendor wishing to submit a device (CM or
CMTS) to a Cablelabs test wave for certification or qualification. Also
maintained is a PICS/proforma conformance check list.
All DOCSIS specifications (which can be found at:
http://www.cablemodem.com/specifications.html) begin with an 'SP' in the
document identifier. The specification naming convention is:
SP-<Category>-<interim_spec_number>-<date>.pdf
So, SP-RFI-I06-010829.pdf is the DOCSIS 1.0 Radio Frequency Interface
Specification, interim release 06 dated 2001-08-29.
Many of the DOCSIS 1.1 specs will have a '1.1' appended to the category
identifier.
The above specs are all for North American cablesystems, Cablelabs also
has a 'EURO-DOCSIS' initiative as well and information on this can be
found at: http://www.tcomlabs.com
Cablelabs also has a PacketCable initiative which is an attempt to
develop interface specs for 'real-time' delivery of content over 2-way
HFC. See: http://www.packetcable.com/
A DOCSIS interim specification is developed around Cableslabs ECR's
(Engineering Change Requests) which become (after approval) ECN's
(Engineering Change Notifications). At the end of most spec's you will
find a list of ECN's which were added to the spec from the previous
release. To get access to ECN's/ECR's I believe you have to be a
Cablelabs member.
Under IETF there is the IPCDN working group:
http://www.ietf.org/html.charters/ipcdn-charter.html
With the following RFC's of interest:
RFC 2669 - Cable Device MIB
RFC 2670 - RF MIB
RFC 3083 - BPI MIB
Under the ITU-T:
ITU-T J.83: Details transmission signalling, MPEG transport, FEC,
etc.. for digital television signals. J.83 Annex A/B are contained
within.
Hope this helps,
Regards,
-Ed.
On Fri, 30 Nov 2001, Dan Kolis wrote:
hi,
Cablemodem means you would like info on DOCSIS (Data
Over Cable Systems Interface Specs) right!! Well i
guess DOCSIS 1.1 is currrent. Following are the MIBs
for DOCSIS:
Hi
Probably full specs in PDF (about 800 pages in pieces by ISO layer) at:
http://www.cablelabs.org
but you have to poke around. Some detailed stuff is at:
http://www.scte.org/standards/standardsavailable.html
and less detailed stuff is at:
http://www.cablelabs.com/about_cl/publications.html
If you think how this interacts with the RFC's and ANSI, IEC, CCITT, SCTE,
etc it would be unlikely a pickup truck would hold all the 'specs' on paper,
so expect to piece together what you need. If you want more help I can try
to help (no promises).
good luck
Dan K