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Re: New Version Notification for draft-troan-6man-universal-ra-option-03.txt

"Bernie Volz (volz)" <volz@cisco.com> Fri, 09 October 2020 01:33 UTC

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From: "Bernie Volz (volz)" <volz@cisco.com>
To: Brian Carpenter <brian.e.carpenter@gmail.com>
CC: Ole Troan <otroan@employees.org>, Michael Richardson <mcr+ietf@sandelman.ca>, "ipv6@ietf.org" <ipv6@ietf.org>
Subject: Re: New Version Notification for draft-troan-6man-universal-ra-option-03.txt
Thread-Topic: New Version Notification for draft-troan-6man-universal-ra-option-03.txt
Thread-Index: AQHWnJ7TUqK4Pri02EyJJ4TL+fC2nqmMJG/XgAHDzb6AAF5kPoAAAbgAgAAAe4CAAAOQAIAAKiIAgAAIY5g=
Date: Fri, 09 Oct 2020 01:32:39 +0000
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References: <DE320B13-69EC-4C71-B462-19BD0AFCEE5B@fugue.com> <E7167B52-A65E-4225-8E78-9F74212414F8@employees.org>, <CANMZLAb3FdZRcpzctXFE_coUQHKT0aTRn6ymkZQjT-KGuwNRYg@mail.gmail.com>
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That may be useful in some applications, but self describing doesn’t communicate how to use the data and that’s often the more complicated. Knowing what the data types are doesn’t tell one how to use the data.

- Bernie

On Oct 8, 2020, at 9:03 PM, Brian Carpenter <brian.e.carpenter@gmail.com> wrote:


The big difference is that CBOR items are self-describing and TLVs are not.

Regards
    Brian
    (via tiny screen & keyboard)

On Fri, 9 Oct 2020, 11:32 Ole Troan, <otroan@employees.org<mailto:otroan@employees.org>> wrote:


On 9 Oct 2020, at 00:19, Ted Lemon <mellon@fugue.com<mailto:mellon@fugue.com>> wrote:

On Oct 8, 2020, at 6:17 PM, Ole Troan <otroan@employees.org<mailto:otroan@employees.org>> wrote:
Which is why the objects are described in CDDL.

That’s lovely, but then why not just compile the CDDL into a TLV parser?

The idea here is to allow users of the option to use existing tools and libraries. Shouldn’t we all be tired of hand crafting C code to parse packets by now?

If you want to build a toolset around a modeling language and TLV representations to compete with CDDL, CBOR, JSON feel free. But I don’t think you should expect us to wait for you. :-)

Ole
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