Re: [ippm] I-D Action: draft-ietf-ippm-ioam-yang-02.txt
t petch <ietfa@btconnect.com> Mon, 17 January 2022 12:25 UTC
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To: Tianran Zhou <zhoutianran@huawei.com>, ippm <ippm@ietf.org>
References: <164212252543.24637.8230414962710718767@ietfa.amsl.com> <61E14995.5000305@btconnect.com> <22444b56b795425c936ac794e53d3075@huawei.com>
From: t petch <ietfa@btconnect.com>
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Subject: Re: [ippm] I-D Action: draft-ietf-ippm-ioam-yang-02.txt
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On 14/01/2022 10:30, Tianran Zhou wrote: > Hi Tom, > I am sorry. The date is not correct. But the date in the YANG model is correct. > The major improvement is about the ioam info. > We collected some requirements and added in. Indeed; it is completely different. I don't know what I was looking at:-( 'namespace' confuses me. In ioam-data, it is 16 bit. Here it is identity. How do you map one to the other? pot-type seems similar; it is an 8-bit field for which you have type and identity. I think that ioam-data does a bad job of explaining how pot-type are identified. The text has changed a lot but not in a coherent manner IMHO and if you are trying to model something incoherent, well, then the model is likely to be incoherent. (I appreciate that ioam-data is with the RFC Editor so there is hope for it yet:-) I would find it clearer if the five options were listed as such, in a list, with references, probably in the Introduction. What is a timestamp subsecond? Is it a nanosecond? /prove/proof/ mostly fixed but not quite all; likewise edge-to-edge /http:tools/https:datatracker/ /RFC RFC 8532/RFC 8532/ and it needs adding to the I-D References /for encapsulate/ to encapsulate/ ("for encapsulation" is fine) YANG module references I find clearer as e.g. "RFC YYYY: Data Fields for In-situ OAM" since that is the name for the long term, I-D names are ephemeral I think that many of the YANG identifiers are prolix e..g. identity ipv6-protocol base base-protocol only needs identity ipv6 base protocol IMHO Any use of base, protocol, type , action etc is likely to be unnecessary, confusing even; probably most uses of trace too. You may find that your YANG Doctor makes a few hundred comments along these lines - most do. Security Considerations is out of date Tom Petch > > Best, > Tianran > > > ________________________________ > > Sent from WeLink > 发件人: t petch<ietfa@btconnect.com<mailto:ietfa@btconnect.com>> > 收件人: ippm<ippm@ietf.org<mailto:ippm@ietf.org>> > 主题: Re: [ippm] I-D Action: draft-ietf-ippm-ioam-yang-02.txt > 时间: 2022-01-14 18:00:43 > > This looks like 'it has been another six months so it is time to > re-submit' I-D. I note that the YANG module date remains at 2021 which > seems a useful indicator! > > Tom Petch > > On 14/01/2022 01:08, internet-drafts@ietf.org wrote: >> >> A New Internet-Draft is available from the on-line Internet-Drafts directories. >> This draft is a work item of the IP Performance Measurement WG of the IETF. >> >> Title : A YANG Data Model for In-Situ OAM >> Authors : Tianran Zhou >> Jim Guichard >> Frank Brockners >> Srihari Raghavan >> Filename : draft-ietf-ippm-ioam-yang-02.txt >> Pages : 26 >> Date : 2022-01-13 >> >> Abstract: >> In-situ Operations, Administration, and Maintenance (IOAM) records >> operational and telemetry information in user packets while the >> packets traverse a path between two points in the network. This >> document defines a YANG module for the IOAM function. >> >> >> The IETF datatracker status page for this draft is: >> https://datatracker.ietf.org/doc/draft-ietf-ippm-ioam-yang/ >> >> There is also an htmlized version available at: >> https://datatracker.ietf.org/doc/html/draft-ietf-ippm-ioam-yang-02 >> >> A diff from the previous version is available at: >> https://www.ietf.org/rfcdiff?url2=draft-ietf-ippm-ioam-yang-02 >> >> >> Internet-Drafts are also available by rsync at rsync.ietf.org::internet-drafts >> >> >> _______________________________________________ >> ippm mailing list >> ippm@ietf.org >> https://www.ietf.org/mailman/listinfo/ippm >> . >> > > _______________________________________________ > ippm mailing list > ippm@ietf.org > https://www.ietf.org/mailman/listinfo/ippm >
- [ippm] I-D Action: draft-ietf-ippm-ioam-yang-02.t… internet-drafts
- Re: [ippm] I-D Action: draft-ietf-ippm-ioam-yang-… Tianran Zhou
- Re: [ippm] I-D Action: draft-ietf-ippm-ioam-yang-… t petch
- Re: [ippm] I-D Action: draft-ietf-ippm-ioam-yang-… t petch
- Re: [ippm] I-D Action: draft-ietf-ippm-ioam-yang-… Tianran Zhou