Re: Q1 followup - arguements against "MUST NOT" language

["Scott Rose" <scottr@nist.gov>]

That seems to be the prevailing winds - MUST NOT compress DNS names in the
RDATA (paraphrase).  Basically, change the DNSSEC specs to keep in line with
the unknown-rrs draft and namedroppers discussion.

Scott
----- Original Message -----
From: "Edward Lewis" <edlewis@arin.net>
To: "Scott Rose" <scottr@nist.gov>
Cc: <namedroppers@ops.ietf.org>
Sent: Wednesday, March 05, 2003 9:43 AM
Subject: Re: Q1 followup - arguements against "MUST NOT" language


> Also, what do you mean by "use" ;)
>
> I'm leaning towards "MUST NOT compress domain names in the RDATA
> sections when assembling and transmitting a message."  (Includes
> dynamic update request messages when using this wording.)
>
> 1) Bytes compressed away in a SIG message are miniscule compared to
> the signature.
>
> 2) A response won't have many NXT's anyway (unlike NS records which
> may be numerous in a referral).
>
> 3) Assuming EDNS0 is going to enlarge the minimum maximum message
> size from 512, what's a few extra bytes.
>
>
> At 13:40 -0500 2/12/03, Scott Rose wrote:
> >The general consensus is that name compression in RDATA is A Bad Thing
(tm),
> >but there are some differences on the wording for the spec:
> >
> >Sub-Question:  What are the arguments against using the terms (1)"MUST
NOT
> >use name compression on DNS names in the RDATA on sending over the wire"
> >(paraphrasing here) over (2)"SHOULD NOT use name compression on DNS names
in
> >the RDATA..."?
> >
> >Notes:
> >     A.  (1) is the strength of the wording used in the unknown-rrs
draft.
> >There would be consistency.
> >
> >
> >
> >Scott
> >
> >
> >
> >
> >--
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>
> --
> -=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-
> Edward Lewis                                          +1-703-227-9854
> ARIN Research Engineer


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