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Re: some feedback on feedback on draft-bonica-6man-ext-hdr-update-03

Fernando Gont <fernando@gont.com.ar> Mon, 25 May 2020 07:12 UTC

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Subject: Re: some feedback on feedback on draft-bonica-6man-ext-hdr-update-03
To: Brian E Carpenter <brian.e.carpenter@gmail.com>, "Xiejingrong (Jingrong)" <xiejingrong@huawei.com>, 6MAN <6man@ietf.org>
References: <CAJE_bqcR8gg6c4c=4sU8zfs5B0gaT4AFtKrbq9o2CFw_Yo4qvA@mail.gmail.com> <fd375263-2b3a-f20d-cf51-d5f39a62c5bf@gmail.com> <69f92d989fca4a7bb3117d6afa84eade@huawei.com> <05010e80-d43c-2253-9536-b8fe31fb9b6f@gmail.com>
From: Fernando Gont <fernando@gont.com.ar>
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Date: Mon, 25 May 2020 03:17:14 -0300
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Hi, Brian,

On 25/5/20 02:33, Brian E Carpenter wrote:
> Hi Jinrong,
> On 25-May-20 16:56, Xiejingrong (Jingrong) wrote:
>> Hi Brian,
>>
>> Maybe the more you assume "Destination node" as "final/ultimate destination node", the more you will be confusing.
>> To me, "Destination node" is very simple to mean "the node (or each of the set of nodes, in the case of multicast) identified in the Destination Address field".
> 
> That's exactly why the text in RFC8200 has been interpreted in two different ways, because some people have assumed the other meaning (i.e. the final destination, if there is a routing header). When we have such an ambiguity in a standard, it's necessary to fix the standard, in my opinion.

If anything, I think the possible confusion was introduced when as a 
follow-up to IETF LC the possible meanings of "processing" were spelled 
out along "processed". e.g., there's not such possibility of confusion 
in RFC2460 or RFC1883.  (Well, other than the fact that folks were 
claiming that "processed" might not include e,g, "insertion" (!) ;-) )

Thanks,
-- 
Fernando Gont
e-mail: fernando@gont.com.ar || fgont@si6networks.com
PGP Fingerprint: 7809 84F5 322E 45C7 F1C9 3945 96EE A9EF D076 FFF1

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