On Oct 24, 2018, at 11:01, Viktor Dukhovni <ietf-d...@dukhovni.org> wrote:

> And yet, here and there I see mention of having to take care to avoid "loops",
> but loops are impossible in a monotone strictly decreasing sequence.

Surely any sequence of labels that terminates with a pointer to any
label within that same sequence is an existence proof of such a loop.
The degenerate case is a single label terminated by a pointer to
itself.


Joe

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