Re: New Version Notification for draft-tuexen-opsawg-pcapng-02.txt

[Guy Harris via tcpdump-workers <tcpdump-workers () lists tcpdump org>]

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> From: Guy Harris <gharris () sonic net>
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> Date: Mon, 28 Sep 2020 13:23:33 -0700
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> On Sep 28, 2020, at 12:06 PM, Michael Tuexen <tuexen () fh-muenster de> wrote:
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> > Do we want to finally publish that? Up to now, I think the point was to
> > find a home where it is substantially discussed and improved...
>
> For example, unlike pcap, which is not easily changeable (you *can* change it, but that involves adding new magic 
> numbers), pcapng can have new block types and option types.
>
> There are extensible protocols with RFCs; that's handled with protocol registries:
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>         https://www.iana.org/protocols
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> and with new I-Ds -> RFCs for extensions.  We'd have to set up registries for block and option types if we publish an 
> RFC for pcapng.  We would *also* want a registry for link-layer header types, for both pcap and pcapng.
>
> See, for example, RFC 1761
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>         https://tools.ietf.org/html/rfc1761
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> which specifies the Sun snoop file format, and RFC 3827:
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>         https://tools.ietf.org/html/rfc3827
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> which sets up a registry for snoop link-layer header types:
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>         https://www.iana.org/assignments/snoop-datalink-types/snoop-datalink-types.xhtml#snoop-datalink-types-2
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> and adds some new entries to it.
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> --- End Message ---
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