Last Modifield: 07/23/2002
The WG is also a forum for discussion of Internet-related issues in data-over-cable equipment and systems. In the event of a particular new Internet technology issue arising in the cable-data context, the WG will identify whether that is best handled within the IETF or is best handled by another standards body. In the event that new IETF work is identified, such items MAY be added that to the WG's charter, subject to normal IETF processes. Standardisation of MIBs for the EuroModem cable modem is within the scope of the IPCDN Working Group. Harmonisation of EuroModem MIBs and DOCSIS MIBs is desirable and will be examined by the IPCDN WG.
The IPCDN WG will also keep informed on what other groups in the industry are doing as it relates to the work of this working group.
Related groups:
The IEEE 802.14 WG was chartered to specify the physical layer and data link layer protocols for the CATV Data Network. The IEEE has discontinued the IEEE 802.14 effort, so that group no longer exists.
DOCSIS has completed its 1.0 versions of Data over Cable standards and is in the process of refining these standards to add additional functionality and to repair any flaws discovered in operational use. The IPCDN WG will update the documents produced which track the 1.0 versions accordingly. These include the RF Interface MIB and the Cable Device MIB. In addition, the operational and management issues of multicast over a Cable Data Network will be addressed.
Work items:
The IPCDN WG will address issues related to network management, especially as they concern HFC access networks. It is expected that other services (i.e. RSVP, IPSEC, etc.) will operate mostly unmodified.
- a MIB for managing the Telephone Modem Return Path (Telco Return) for 1-way cable modems. (draft-ietf-ipcdn-tri-mib-01.txt)
- a MIB for managing the Baseline Privacy system for DOCSIS. (draft-ietf-ipcdn-bpi-mib-01.txt), (draft-ietf-ipcdn-bpiplus-mib-00.txt)
- a MIB for managing the Quality of Service parameters for a Cable Data Network. (draft-ietf-ipcdn-qos-mib-02.txt)
- a MIB for managing Multicast (IGMP) over a Cable Data Network. (draft-ietf-ipcdn-igmp-mib-00.txt)
- a MIB for CMTS based customer management (draft-ietf-ipcdn-subscriber-mib-00.txt)
- Revisions to the Proposed Standard RF and CM MIBs to address SNMPv3 and IPv6 compliance and interoperability issues.
| Done | Post final I-D on Baseline Privacy MIB; Last call | |
| FEB 00 | Post I-Ds revising RF and CM MIBs to support DOCSIS1.1 and for compliance with SNMPv3 and IPv6 | |
| Done | Submit Baseline Privacy MIB to IESG for publication as a Standards Track RFC | |
| FEB 00 | Submit updated RF and CM MIBs to IESG with implementation statement for advancement to Draft Standard | |
| JUN 00 | Revaluate charter and milestones. |
| RFC | Status | Title |
|---|---|---|
| RFC2669 | PS | Cable Device Management Information Base for DOCSIS compliant Cable Modems and Cable Modem Termination Systems |
| RFC2670 | PS | Radio Frequency (RF) Interface Management Information Base for MCNS/DOCSIS compliant RF interfaces |
| RFC3083 | I | Baseline Privacy Interface Management Information Base for DOCSIS Compliant Cable Modems and Cable Modem Termination Systems |
Meeting notes reported and edited by Jean-Francois Mulé. --- WG Meeting Summary Approximately 20 members of the IP over Cable Data Networks WG met at the Atlanta IETF on November 20, 2002. The main purpose of the meeting to discuss open issues on the ipcdn chartered work items including the DOCSIS and PacketCable MIBs. We addressed some administrative issues (in particular the update/removal of expired drafts). We also reviewed the submission of the CableHome mibs and discussed whether to charter those as official wg items. Rich went through the meeting agenda sent on Nov 6, there was no additions. 3 decks of slides were provided and presented, check on http://www.ipcdn.org/meetings.html (slides for IPCDN WG Agenda & Update, Subscriber Management MIB, Cable Device MIB Update). --- Administration/Re-chartering - General draft management discussion We covered the following general issues: - It is strongly recommended to use the ipcdn mailing list for technical discussions of IETF drafts and related open issues (mailto:ipcdn@ietf.org). - Authors need to provide more timely responses to MIB doctors and other IESG reviewers. - Authors should make more frequent draft updates, i.e. not just before IETF draft submission deadlines but address comments and update the drafts on a regular basis. - WG handling of expired internet-drafts: If there are existing mibs in DOCSIS that have been implemented and are still in internet-drafts, action should be taken. The AD Thomas Narten made a comment re: ID revisions: if a document is not rev'ed in between meetings, wg chairs will be more aggressive following up with the ID authors. To address the growing number of expired drafts, the co-chairs decided that of if an IPCDN internet-draft is expired for 2 consecutive IETF meetings, it will be *discontinued*. This decision was presented in Atlanta and there was no objections. It was also proposed to reassigned expired drafts to new authors (volunteers interested in owning an expired draft, please contact the co-chairs). Ultimately, expired drafts will be removed from the WG charter. A question was asked re: the integration of the Cablelabs changes in Internet-Drafts (done via the Engineering Change Request process at CableLabs) and what was the purpose of reviewing them now in IPCDN. The chairs responded that except for minor nits, the IPCDN wg should review those changes and in any case, the final ECN changes must be part of ID updates. - Recharter progress The co-chairs have been working on the recharter to add new work items based on participants' proposals, remove some expired drafts and revise completion target dates. A draft charter update is available at: http://www.ipcdn.org/charter-update.html In brief, it is proposed to: - Drop DVB/Euromodem MIB efforts (see below for more details) - Add the 3 PacketCable mibs - Add CableHome MIB efforts With regards to the revised target dates for completing the drafts, the co-chairs propose to align the wg item deliverable dates with the CableLabs certification wave timeline (organize the ipcdn deliverables in 3 buckets to hit CW#26, CW#27 in 2003). Determining new WG item milestones requires authors' sign-offs. Once the co-chairs receive the input of the draft authors, the IPCDN re-chartering process will be complete and a new charter will be submitted with the IESG. - Draft review status and current WG priorities Two drafts are in Area Director review and require complete author feedback to the MIB doctor: DOCSIS IGMP MIB, Subscriber Management MIB. Since the meeting, Rich has created the additional IPCDN work group page, now available at www.ipcdn.org. To track ipcdn drafts, check http://www.ipcdn.org/, link under "IETF Draft Tracker for IPCDN documents in IESG and IETF-wide review". There was a general agreement that the wg priorities are: - Finish DOCSIS 1.1 & 2.0 drafts ASAP - IPCablecom/PacketCable MIBs - CableHome MIBs - Upcoming SNMPv3 MIB Changes We warned the group and authors of the changes to SNMP boilerplates. Since the meeting, the new SNMPv3 RFCs have arrived, and they are numbered rfc3410-rfc3418. An updated boilerplate for IETF MIB Documents is available at: Check the normative & informative references at http://www.ops.ietf.org/mib-boilerplate.html - Additional IPCDN wg web site http://www.ipcdn.org/ --- Review of DOCSIS Submissions and open issues Three ID were revised (draft-ietf-ipcdn-subscriber-mib-07.txt, draft-ietf-ipcdn-device-mibv2-03.txt, draft-ietf-ipcdn-bpiplus-mib-07.txt). + DOCSIS IGMP MIB draft-ietf-ipcdn-igmp-mib-04.txt Applicability of RFC 2933 IGMP MIB to Docsis CM and CMTS devices. Author responded partially to MIB doctor comments. Author is still working on response to MIB doctor comments for 04, with WG chair assistance. The open issue is the definition of formal MIB compliance statements for DOCSIS, based on CM/CMTS interface, active/passive modes, ... + DOCSIS Subscriber Management MIB draft-ietf-ipcdn-subscriber-mib-07.txt See additional meeting slides provided by Wilson Sawyer for this mib discussion at http://www.ietf.org/proceedings/02nov/sl ides/ipcdn-1/index.html Author is responding to MIB doctor comments for 06. Draft07 resolves many MIB doctor comments. Unresolved: overlap of IP filters & CPE controls with similar RFC 2669 tables: Mike St Johns commented that the overlap of IP filters with RFC2669 was done *on purpose* in cases when a cable operator may control the CMTS but not the CM. There are built for a good reason. It was decided to take it to the list. + DOCSIS 2.0 RFI MIB draft-ietf-ipcdn-docs-rfmibv2-04.txt is the current submitted version. Author to submit draft05 with WG consensus. Items needing some update: - Resolve DOCSIS channel utilization issue: provide new counter objects instead of percentage objects, defining utilized minislots for new counters, - Extend docsIfCmtsCmStatusValue for BPI+ status? No, use docsBpi2CmAuthState from BPI+ MIB instead --> Ready (almost) to start WG last call. + Cable Device MIB draft-ietf-ipcdn-device-mibv2-03.txt See additional meeting slides provided by Rich Woundy for this mib discussion at http://www.ietf.org/proceedings/02nov/sl ides/ipcdn-2/index.html The updated draft reflects some DOCSIS modifications (deprecate IP filters, CPE controls in favor of Subscriber Management MIB on CM). --> Ready to start WG last call. + BPI+ MIB draft-ietf-ipcdn-bpiplus-mib-07 The new draft editor (Alexander Katsnelson, CableLabs) has submitted draft07 with some minor nits. Some changes are still required: - Remove extraneous CRL references in text and MIB - Did we resolve the tie-breaking for IP Multicast rows? Use docsBpi2CmtsIpMulticastAddress or docsBpi2CmtsIpMulticastIndex as tie-breaker for docsBpi2CmtsIpMulticastMapTable rows? - Do we need to clarify meaning of date and time (i.e. include the timezone) for these objects? docsBpi2CodeMfgCodeAccessStart, docsBpi2CodeMfgCvcAccessStart, docsBpi2CodeCoSignerCodeAccessStart, docsBpi2CodeCoSignerCvcAccessStart --> Ready (almost) to start WG last call? --- Review of PacketCable/IPCablecom Submissions and open issues The individual MIB Framework document submission has been dropped and will not chartered by the WG. Three drafts have been chartered in ipcdn. Updated Internet-Drafts were submitted to integrate the chairs' feedback and recommendations: - All three MIBs now pass MIB compilation (SMICng and others) - MIBs are rooted under mib-2 in temporary location - Various SMI corrections (DisplayString replaced by SnmpAdminString, INTEGER replaced by Integer32, Object definitions made friendly wrt RFC2578 and RFC2580, Removed all obsolete objects, corrected date values, Fixed root OIDs for notification objects) + Management Event MIB and open issues draft-ietf-ipcdn-pktc-eventmess-00.txt Issue: Reword the text in the DESCRIPTION of pktcDevEvReportEndpointName Issue: Should the SYSLOG UDP port number be configurable ala pktcDevEvSyslogUdpPort? Issue: Change pktcDevEvThrottleInhibited DESCRIPTION to match similar RFC2669bis object? + MTA MIB and open issues draft-ietf-ipcdn-pktc-mtamib-00.txt Issue: Remove MD5 hashing from pktcMtaDevProvConfigHash Issue: Remove overlap with the Entity MIB? + Network Control Signaling MIB and open issues draft-ietf-ipcdn-pktc-signaling-00.txt Issue: Bulk up the glossary Issue: Add risk assessment for read-write/read-create objects to the Security Considerations --> The drafts are now ready for the formal WG review! + We identified the following technical reviewers to conduct WG review: - Igor Lasic [igor_lasic@adc.com] - Prakash [prakash@net.com] - Azlina Ahmad [azlina@cisco.com] for the MTA mib only --- Review the CableHome Submissions (Individual Submissions) The following drafts were submitted by the CableLabs CableHome project and it is being considered for addition on the WG charter: + Security MIB draft-jones-cable-gateway-security-mib-00.txt + Configuration MIB draft-jones-cable-gateway-config-mib-00.txt + Device Management MIB draft-jones-cable-gateway-device-mib-00.txt + Address Mapping MIB draft-jones-cable-gateway-addressing-00.txt + Remote Diagnostic Tools MIB draft-jones-cable-gateway-tools-mib-00.txt The discussion centered around 2 points: 1. Overlap with other IETF draft MIBs: Chairs identified some potential overlap with draft-ietf-dhc-server-mib-07.txt and draft-ietf-nat-natmib-05.txt. There might be other mibs that have some functionality overlapping the CableHome mibs. There was an active discussion with Thomas Narten re: the NAT working group and nat mib. Based on Thomas Narten's input, it is unclear what the status of the NAT mib is and the overlap there may be ok for now. 2. Shall the IPCDN wg add these CableHome drafts to the WG charter? Given the late submission dates and the ipcdn audience being more familiar with DOCSIS and PacketCable, the chairs decided that additional review time is required. We identified specific technical reviewers in the meeting, more to come via the mailing list. + Cablehome draft reviewers: Volunteers: - Igor Lasic [igor_lasic@adc.com] - Greg Nakanishi [gnakanishi@motorola.com] --- Status of various other WG drafts The 2 drafts have expired. Do we need a new editor? + DOCSIS QoS MIB Authors have allowed version 06 to expire. Issue 1: RowStatus objects need to specify if column object values can be modified when 'active' docsQosServiceClassStatus docsQosServiceClassPolicyStatus Issue 2: Update to docsQosServiceFlowPkts description + DOCSIS Event Notification Authors have allowed version 02 to expire. The draft needs resolving the overlap of objects with latest RFC 2670 update via DOCSIS ECR: oss-r-02017. + DVB/Euromodem MIBs The 4 DVB/Euromodem MIB drafts have expired and after consulting ECCA Technical Committee and the Euromodem community, there is no interest in continuing this work (contact: Dirk Jaeger). The drafts will be removed from the charter. --- WG next steps Publish updates to resolve MIB doctor comments and prepare for IETF last-call for: - DOCSIS IGMP MIB, - Subscriber Management MIB drafts Prepare DOCSIS 2.0 RFI MIB, Cable Device MIB, and BPI+ MIB drafts for working group last-call. WG chairs will resolve authorship of expired WG internet-drafts or cancel them and chairs will obtain author feedback on reasonable draft milestones. Obtain IESG agreement on new charter. WG to start the review PacketCable/IPCablecom and CableHome MIBs. + Next steps for I-D authors: - Help the chairs define reasonable milestones for charter - Provide more frequent draft updates and don't let drafts expire - Be flexible with respect to internet-draft requirements changes (e.g. SNMP boilerplates, normative vs. information references) - Prepare drafts for working group last-call, etc. - Respond in a timely manner to MIB doctor comments, and help us resolve them - Let the chairs know when you need help + Next steps for WG participants - Review DOCSIS MIBs (RFI 2.0, Cable Device, BPI+) in anticipation of WG last-call - Review PacketCable/IPCableCom MIBs for technical correctness - Read and review CableHome MIBs - Provide technical comments on the ipcdn mailing list, not just privately to draft authors - Provide comments on the IPCDN recharter. #--- end of ipcdn meeting notes IETF #55. |