Subject: [Tsvwg] Re: Draft-floyd-ecn-alternates-00.txt

From: Sally Floyd <[email-masked]>
Date: Mon, 16 May 2005 13:10:55 -0700

Gorry -

>You don't say it, but I wonder if it should also be said it that it is
>illegal to remark *from* 00?
>- Remarking 00  -> 01 (or 00 -> 10) allows a non-ECN capable packet to
>pretend to be ECN-capable, and thereby possibly by-pass early discard, by
>suggesting to the router that remarking will likely have an effect (be
>honoured, even though the end host didn't specify ECN support).

Ah dear, probably you are right.  I will add that to the document.

Thanks,

- Sally

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