Re: [CCAMP] FW: New Version Notification for draft-jiang-ccamp-flexe-yang-00.txt
tom petch <ietfc@btconnect.com> Tue, 05 March 2019 10:23 UTC
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From: tom petch <ietfc@btconnect.com>
To: Jiangyuanlong <jiangyuanlong@huawei.com>, 'CCAMP' <ccamp@ietf.org>
CC: Weiqiang Cheng <chengweiqiang@chinamobile.com>, "Hexiang (Xiang, IP Research)" <hexiang9@huawei.com>
Thread-Topic: [CCAMP] FW: New Version Notification for draft-jiang-ccamp-flexe-yang-00.txt
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Date: Tue, 05 Mar 2019 10:23:11 +0000
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Subject: Re: [CCAMP] FW: New Version Notification for draft-jiang-ccamp-flexe-yang-00.txt
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----- Original Message ----- From: "Jiangyuanlong" <jiangyuanlong@huawei.com> Sent: Monday, March 04, 2019 8:43 AM > Dear CCAMPers, > > More and more network equipments (e.g., routers) begin to support FlexE interfaces in the industry, especially after OIF published its FlexE 2.0 implementation agreement. > We submitted an I-D on "YANG Data Model for FlexE Interface Management", to support configuration of FlexE 2.0 interface like an ordinary network interface (by augmenting the YANG module of RFC 8343). > Your reviews and comments will be very appreciated. The challenge with such an I-D is getting access to the documentation of another SDO to see just what it says, in this case, that of the OIF, which some on this list will have but I assume that I will not. Thus it would be interesting to learn more about the relationship between " Note that max number of FlexE groups in a network is 63."; and " leaf group-number { type uint32 { range "1..1048574"; More prosaically, the IANA Considerations need work. You say " It is proposed that IANA register a new IANAifType TBD for the interface type of Flex Ethernet in the "IANA Interface Type YANG Module" [RFC7224]." Go read RFC7224 and you will find it says that this MUST NOT happen:-) Rather, RFC7224 says that you should request IANA to add a new interface type to the "ifType definitions" registry, whereupon IANA will do the rest. And RFC7224 specifies what data should be specified with such a request which this I-D does not, at present, provide. Thus the YANG module has when "if:type = 'ianaift:flexethernet'" { but 'flexethernet' is not defined anywhere so will never exist! And " It is proposed that IANA register the following YANG module in the "YANG Module Names" registry: Name: ietf-flexe Namespace: urn:ietf:params:xml:ns:yang:ietf-flexe Prefix: flexe Reference: this document" will not work either; in the IANA web pages, 'this document' will not make much sense - rather, you need RFC XXXX with a note to the RFC Editor for XXXX to be replaced with the number assigned to the I-D. You need just the same in the YANG module itself. (You only need the one Note to the RFC Editor at the front of the I-D - the RFC Editor tell me they prefer this). Registering the YANG module needs a reference to RFC6020. More technically, the use of enumerations in YANG is problematic since - the numeric value is not carried in the protocol, it is for documentation only (unlike SMI) - it is complex to add values in future which I imagine will happen with FlexE Hence the widespread use of the YANG identity statement, which also has its problems. enumeration may be the right answer but it needs consideration. Tom Petch > > Best regards, > Yuanlong on behalf of all coauthors > > -----Original Message----- > From: internet-drafts@ietf.org [mailto:internet-drafts@ietf.org] > Sent: Friday, March 01, 2019 4:48 PM > To: Weiqiang Cheng <chengweiqiang@chinamobile.com>; Jiangyuanlong <jiangyuanlong@huawei.com>; Hexiang (Xiang, IP Research) <hexiang9@huawei.com> > Subject: New Version Notification for draft-jiang-ccamp-flexe-yang-00.txt > > > A new version of I-D, draft-jiang-ccamp-flexe-yang-00.txt > has been successfully submitted by Yuanlong Jiang and posted to the IETF repository. > > Name: draft-jiang-ccamp-flexe-yang > Revision: 00 > Title: YANG Data Model for FlexE Interface Management > Document date: 2019-03-01 > Group: Individual Submission > Pages: 15 > URL: https://www.ietf.org/internet-drafts/draft-jiang-ccamp-flexe-yang-00.txt > Status: https://datatracker.ietf.org/doc/draft-jiang-ccamp-flexe-yang/ > Htmlized: https://tools.ietf.org/html/draft-jiang-ccamp-flexe-yang-00 > Htmlized: https://datatracker.ietf.org/doc/html/draft-jiang-ccamp-flexe-yang > > > Abstract: > This document defines a YANG data model for the configuration of > FlexE 2.0 interface, and its FlexE clients. The YANG module in this > document conforms to the Network Management Datastore Architecture > (NMDA). > > > > > Please note that it may take a couple of minutes from the time of submission until the htmlized version and diff are available at tools.ietf.org. > > The IETF Secretariat > > _______________________________________________ > CCAMP mailing list > CCAMP@ietf.org > https://www.ietf.org/mailman/listinfo/ccamp
- [CCAMP] FW: New Version Notification for draft-ji… Jiangyuanlong
- Re: [CCAMP] FW: New Version Notification for draf… tom petch
- Re: [CCAMP] FW: New Version Notification for draf… Loa Andersson
- Re: [CCAMP] FW: New Version Notification for draf… Jiangyuanlong
- Re: [CCAMP] FW: New Version Notification for draf… tom petch