Re: [dhcwg] parameter-request

Shane Kerr <Shane_Kerr@isc.org> Tue, 30 May 2006 11:05 UTC

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Date: Tue, 30 May 2006 13:05:10 +0200
From: Shane Kerr <Shane_Kerr@isc.org>
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To: "David W. Hankins" <David_Hankins@isc.org>
Subject: Re: [dhcwg] parameter-request
References: <20060525185918.GF4047@isc.org>
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David W. Hankins wrote:
<snip/>
> But if we, instead of allocating one option code for a new option to
> contain parameter request, allocate two option codes (as Ralph says,
> now that we have plenty) and use them to "mark up" the existing
> parameter request option, then we can reduce this to a nominal
> increase (a small percentage).
> 
> So, assuming you replaced the text "all-of" and "one-of" with the
> actual option codes assigned, our strawman single, standard
> parameter-request list option now looks like:
> 
>   1:3:6:c:f:11:17:1c:1d:1f:21:one-of:tz:posix:2:all-of:28:29:2a:9:7:c8:2c
> 
> Essentially, the start of the list defaults as an 'all of' section,
> and may continue that way up until the end of the option.  If either
> the 'one-of' or 'all-of' options are present, then you start a new
> section (under the rules specific to one of those two) until you reach
> the next 'one-of' or 'all-of' options (or the end of the list).

<snip/>

> Is there interest in the WG for a document describing something like
> this?

I'd like to see this.

I'd also like to see the ability to use this with the new timezone
option, which means converting it back from suboptions to separate
options, right? I think this is necessary, because I would like the
'fall-back' for the timezone options to be option 2 (the existing time
offset option).

- --
Shane
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