Re: [v6ops] I-D Action: draft-ietf-v6ops-host-addr-availability-02.txt

"Howard, Lee" <lee.howard@twcable.com> Tue, 03 November 2015 01:08 UTC

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From: "Howard, Lee" <lee.howard@twcable.com>
To: Havard Eidnes <he@uninett.no>, "markzzzsmith@gmail.com" <markzzzsmith@gmail.com>
Thread-Topic: [v6ops] I-D Action: draft-ietf-v6ops-host-addr-availability-02.txt
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Date: Tue, 03 Nov 2015 01:08:16 +0000
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Subject: Re: [v6ops] I-D Action: draft-ietf-v6ops-host-addr-availability-02.txt
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</hat>
I find prefix length to be a clear descriptor. However, apparently not
everyone does, so the term should be defined before using it throughout
the document.
Prefixes have length (longer/shorter), blocks have volume
(larger/smaller). IMHO.

Lee

<hat>

On 11/2/15, 6:52 PM, "v6ops on behalf of Havard Eidnes"
<v6ops-bounces@ietf.org on behalf of he@uninett.no> wrote:

>>>> I agree with making sure to avoiding ambiguity, I know on occasion it
>>>> hasn't been clear to me whether somebody is describing a prefix with a
>>>> smaller number of addresses, or a shorter prefix length, which
>>>>obviously
>>>> mean the complete opposites in terms of number of addresses within the
>>>> prefix, when they use "smaller prefix".
>>>
>>> What about "smaller/larger sized prefix"?
>>
>> That would be clearer.
>
>To me that's still borderline ambigious, and I don't understand
>why anyone would want to use borderline ambigious wording when
>writing RFCs or discussing them.
>
>It's not clear whether it's the prefix-length which is "smaller"
>or "larger" or the address space covered which is "smaller" or
>"larger", and they each point in the direction of different
>interpretations.  In other words, you don't "size" a prefix, but
>you "size" the address space covered.  A prefix, on the other
>hand, has length, so to my eyes the above looks ... awkward.
>
>Therefore I'm suggesting the more unambigious "shorter/longer
>prefix" as preferable.
>
>Regards,
>
>- Håvard
>
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