Re: [IPFIX] I-D Action: draft-ietf-ipfix-text-adt-08.txt

Paul Aitken <[email protected]> Mon, 04 Aug 2014 09:21:56 +0100
Newsgroups gmane.ietf.ipfix
Message-ID <[email protected]>
Brian,

> On 04 Aug 2014, at 10:04, Paul Aitken <[email protected]> wrote:
>
>> Brian,
>>
>>> This revision addresses final IETF LC comments on extensibility and copy/paste errors in the examples (thanks, Paul)!
>> You missed tcpControlBits: since it's defined as unsigned16 in [IANA], you should either use unsigned16 or explain why unsigned8 is being used (eg, say that reduced-size encoding is being used).
>>
>> Recall:
>>
>>>> And tcpControlBits:
>>>>
>>>>           tcpControlBits(6)<unsigned8>[1]
>>>>
>>>> - has been revised to unsigned16 [RFC7125]. Changing this would also make Figure 2 align more neatly.
> Note that in a textual encoding, alignment is irrelevant.

That was cut-n-paste from an earlier email. I can't immediately see what 
it was referring to.

>>> It'll probably still be exported as 1 byte everywhere, but the type is indeed unsigned16
> Ah, indeed. Rev -09 then.
>
>> It would be useful to discuss reduced size encoding and show a specific example. eg, if I'm collecting ingressInterface which is nominally a u32, but I'm a small device so I only export a u8, should I export:
>>
>> ingressInterface(10)<unsigned32>[1]
>>
>> or
>>
>> ingressInterface(10)<unsigned8>[1]
> This is an interesting question but it would not appear to be in scope at all for this document.

Where would such a clarification be given if not here?

P.


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