Re: [IPFIX] Review of draft-irtf-nmrg-location-ipfix-07.txt

PJ Aitken <pjaitken@brocade.com> Fri, 03 March 2017 10:42 UTC

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From: PJ Aitken <pjaitken@brocade.com>
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Date: Fri, 03 Mar 2017 10:42:41 +0000
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Subject: Re: [IPFIX] Review of draft-irtf-nmrg-location-ipfix-07.txt
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Authors, has this document been reviewed by any IPFIX experts?

I see a request on November 23rd, but no reviews. So let me sign up for 
that.


First, I took a quick look at the Figures in Appendix B:

Figure 1: the Field Count should be 5, not 2.

Figure 2: the size of the optional Padding field is wrong: the figure 
shows 9 bits rather than 8.

Figure 4: the Length of 32 should be 28. The "geospatialLocationPosLat" 
Information Element isn't defined.

Figure 5: the Field Count of 2 should be 3.

Figure 7: The "geospatialLocationPostLng" and "geospatialLocationtLng" 
Information Elements aren't defined.

Figure 9: The sizes of the "CivicValue" data fields are not shown 
correctly. eg, "Inria Nancy-Grand Est" is depicted in 6 octets when it 
should contain 21. Therefore the Figure is misleading and difficult to 
understand; it is not a good example. Please redraw the figure 
correctly. Please mark the variable-lengths eg "vlen = 21".

Figure 11:
     The Set IDs (311, 312, 313) do not correspond to the Template IDs 
in Figure 10 (306, 307, 308).
     Again, the "Inria Nancy-Grand Grand Est" field is depicted in 6 
octets rather than the requisite 27. Without the repeated "Grand", the 
21 would be correct. Please write "vlen=21"
     The "Civic location Attr length" of 25 seems wrong.


This document is not ready for publication. Please post an updated 
version so I can check that all the IPFIX details are correct.

Thanks,
P.