[DNSOP] Re: [dtn] Re: Re: IPN and CLA RRTYPEs to support Bundle Protocol RFC9171

[Mark Andrews <[e-mail]>]

> On 27 Jun 2024, at 03:11, Rick Taylor <[e-mail]> wrote:
> 
> Hi Scott,
> 
> Thanks for the updated doc.   I've been thinking through what I understand is your use-case, and I wonder whether new RRTYPEs is really the right way to go.  As I see it, the less one has to update the DNS infrastructure of the Internet the better, so would this alternative mechanism work for you?:

Adding a new RRTYPE requires zero infrastructure upgrades.  It’s a database entry at IANA.  Every DNS server on the planet should handle these transparently.  That was required by RFC 1034 and RFC 1035.  You can even add them to zones before the parsing software is updated using unknown type representation (RFC 3597) which was one thing that was missing from RFC 1035 that would have made adding new types easier.  Nameservers and stub resolvers were always required to treat unknown records as opaque objects.

This doesn’t mean that there weren’t mis-implementations of the standards which failed to handle unknown types correctly but there have been 78 types added since RFC 1034 and RFC 1035.  That’s 2-3 per year.  Nameserver developers know how to add new record types quickly.

Mark
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Mark Andrews, ISC
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