Re: [manet] MIB doctor "skim" of draft-ietf-manet-olsrv2-mib-11.txt
"Dearlove, Christopher (UK)" <chris.dearlove@baesystems.com> Fri, 14 June 2013 08:47 UTC
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From: "Dearlove, Christopher (UK)" <chris.dearlove@baesystems.com>
To: Randy Presuhn <randy_presuhn@mindspring.com>, "mib-doctors@ietf.org" <mib-doctors@ietf.org>, "draft-ietf-manet-olsrv2-mib.all@tools.ietf.org" <draft-ietf-manet-olsrv2-mib.all@tools.ietf.org>, "manet@ietf.org" <manet@ietf.org>
Thread-Topic: [manet] MIB doctor "skim" of draft-ietf-manet-olsrv2-mib-11.txt
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Date: Fri, 14 Jun 2013 08:47:07 +0000
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Subject: Re: [manet] MIB doctor "skim" of draft-ietf-manet-olsrv2-mib-11.txt
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With regard to the maximum long period for timing information, something abou the figure you indicate is the maximum value representable using the RFC 5497 format. Is it realistic? I can see a use for a large figure, if running a MANET in part over reliable fixed links. But essentially the original format had a 4/4 split of bits, and its maximum was deemed too short. 5/3 gave a long figure, even setting granularity to a binary millisecond. -- Christopher Dearlove Senior Principal Engineer, Communications Group Communications, Networks and Image Analysis Capability BAE Systems Advanced Technology Centre West Hanningfield Road, Great Baddow, Chelmsford, CM2 8HN, UK Tel: +44 1245 242194 | Fax: +44 1245 242124 chris.dearlove@baesystems.com | http://www.baesystems.com BAE Systems (Operations) Limited Registered Office: Warwick House, PO Box 87, Farnborough Aerospace Centre, Farnborough, Hants, GU14 6YU, UK Registered in England & Wales No: 1996687 -----Original Message----- From: manet-bounces@ietf.org [mailto:manet-bounces@ietf.org] On Behalf Of Randy Presuhn Sent: 13 June 2013 06:53 To: mib-doctors@ietf.org; draft-ietf-manet-olsrv2-mib.all@tools.ietf.org; manet@ietf.org Subject: [manet] MIB doctor "skim" of draft-ietf-manet-olsrv2-mib-11.txt ----------------------! WARNING ! ---------------------- This message originates from outside our organisation, either from an external partner or from the internet. Keep this in mind if you answer this message. Follow the 'Report Suspicious Emails' link on IT matters for instructions on reporting suspicious email messages. -------------------------------------------------------- Hi - In reponse to my earlier comments, the editors of the OLSRv2 MIB module issued an updated I-D, which I understand has been sent to the manet WG for a sanity check. In order speed things along, I did a quick skim of the document this evening. These comments are in my opinion very minor, with the exception of RMP-313, but I would appreciate comments from other MIB doctors on the two "***" items below. (As well as anything else if you think I've missed the boat.) RMP-301 top of page 4: "OLSRV2" should be "OLSRv2" RMP-302 top of page 4: "intervals etc." -> "intervals, etc." RMP-303 6.3: needs to mention IANAolsrv2LinkMetricType-MIB in the list. RMP-304 Olsrv2MetricValueCompressedFormTC: I'm surprised that the display-hint is "x" rather than "d". I hope the WG discussed this - I'm ok with whatever, as long as it's a conscious decision and not an oversight. RMP-305 Olsrv2MetricValueCompressedFormTC: I'm also a little surprised that the DESCRIPTION talks about set processing, since it looks to me as though all uses of this TC are for read-only objects. RMP-306 Olsrv2MetricValueCompressedFormTC: has the WG discussed what a management system should do if an implementation reponds to a get/getnext/getbulk request for an object of this type with a syntactically legal but mathematically impossible value, such as 16776959? RMP-307 olsrv2InterfaceTable: "This object is set either by network management, or by other means, e.g., CLI." Is the EXCLUSIVE-OR intentional? If not, should delete the "either". RMP-308 Something I overlooked on previous passes: olsrv2RxHoldTime, olsrv2PHoldTime, olsrv2FHoldTime, olsrv2TpMaxJitter, olsrv2TtMaxJitter, olsrv2FMaxJitter: are the maximum values for these *really* more than 49 days? *** RMP-309 olsrv2LinkMetricType: the DEFVAL should probably say { unknown(0) } - I don't know whether all MIB compilers out there nowadays are smart enough to figure out { unknown } by itself. They *should* be able to, but this might be a case where conservatism is warranted. RMP-310 olsrv2TibAdRemoteRouterSetMaxSeqNo and olsrv2TibAttNetworksSetSeqNo: I seem to recall from another document that the notion of "greatest" for this bit of information isn't the same as in math. If that is so, it should be spelled out here, as has already been done in the description for olsrv2TibAdRemoteRouterSetMaxSeqNo. *** RMP-311 All items with SYNTAX TimeStamp - some might argue whether UNITS clauses are appropriate for these. I'm equivocal on the point. RMP-312 You might consider whether you'd like to put DEFVAL clauses on the read-write items in olsrv2NotificationsControl. DEFVALs are merely advisory - implementations are NOT obligated to follow them (RFC 2578 clause 7.9). RMP-313 Section 10: needs to add instructions for the registration and spin-off of the MIB module with the metric textual convention. (Those instructions currently are in the first paragraph of Appendix A. It's ok by me if thery're repeated there, but I think it's crucial that IANA's instructions in section 10 are complete.) Randy _______________________________________________ manet mailing list manet@ietf.org https://www.ietf.org/mailman/listinfo/manet ******************************************************************** This email and any attachments are confidential to the intended recipient and may also be privileged. If you are not the intended recipient please delete it from your system and notify the sender. You should not copy it or use it for any purpose nor disclose or distribute its contents to any other person. ********************************************************************
- [manet] MIB doctor "skim" of draft-ietf-manet-ols… Randy Presuhn
- Re: [manet] MIB doctor "skim" of draft-ietf-manet… Dearlove, Christopher (UK)
- Re: [manet] MIB doctor "skim" of draft-ietf-manet… Randy Presuhn
- Re: [manet] MIB doctor "skim" of draft-ietf-manet… Dearlove, Christopher (UK)