Re: [Int-area] Alissa Cooper's Discuss on draft-ietf-intarea-frag-fragile-15: (with DISCUSS and COMMENT)

[Fernando Gont <[e-mail]>]

Hello, Alissa,

Thanks for your comments! Inline...

On 6/8/19 23:30, Alissa Cooper via Datatracker wrote:
> 
> ----------------------------------------------------------------------
> DISCUSS:
> ----------------------------------------------------------------------
> 
> Thanks for writing this document.
> 
> Section 6.1 says:
> 
> "Developers MAY develop new protocols or applications that rely on IP
>    fragmentation if the protocol or application is to be run only in
>    environments where IP fragmentation is known to be supported."
> 
> I'm wondering if there should be a bit more nuance here to make the
> recommendation clearer. Do we think there is a case where an application
> protocol developed in the IETF will be known to only run in environments where
> fragmentation is supported? If we don't think developing such a protocol would
> be in scope for the IETF, then I'm wondering if that case should be called out
> explicitly with a stronger normative requirement.

An application (developed in the IETF or elsewhere) might be used in
some controlled domain, where fragmentation may be known to be
supported. The message here is "unless you really know what you are
doing and you're in e.g. a controlled environment where fragmentation is
known to be supported, you shouldn't rely on fragmentation".

I wouldn't mind myself stronger advice, but this is what the wg settled on.

Thanks,
-- 
Fernando Gont
SI6 Networks
e-mail: [e-mail]
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