Re: [tsvwg] UDP Options Implementation Update

Derek Fawcus <dfawcus+lists-tsvwg@employees.org> Mon, 05 November 2018 12:22 UTC

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Date: Mon, 05 Nov 2018 12:22:27 +0000
From: Derek Fawcus <dfawcus+lists-tsvwg@employees.org>
To: G Fairhurst <gorry@erg.abdn.ac.uk>, tsvwg@ietf.org
Cc: "tom@erg.abdn.ac.uk" <tom@erg.abdn.ac.uk>, touch@strayalpha.com
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References: <5BDFE320.9030802@erg.abdn.ac.uk> <20181105063300.GA14271@tom-desk.erg.abdn.ac.uk>
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Subject: Re: [tsvwg] UDP Options Implementation Update
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On Mon, Nov 05, 2018 at 06:33:00AM +0000, tom@erg.abdn.ac.uk wrote:
>  
> At IETF-103 we are presenting the CCO
> (draft-fairhurst-udp-options-cco, see maprg and tsvwg second meeting).
> We think use of the CCO is required on the internet and an checksum
> using the CCO pseudo header should replace the OCS.
>  
>  xx      4         Checksum Compensation Option (CCO)    - An alternative approach to OCS

Oh - I like that.

Have you actually observed any middlebox corruption or mis-checking along the lines mentioned?

If so, then it would seem this new option would be mandatory to include in
all UDP packets containing UDP options.

DF