[ietf-nntp] Decreasing low water mark

[Russ Allbery]

Clive D W Feather <clive at demon.net> writes:

> In 6.1.1.2 we write:

>     Except when the group is empty and all three numbers are zero, whenever
>     a subsequent GROUP command for the same newsgroup is issued, either by
>     the same client or a different client, the reported low water mark in
>     the response MUST be no less than that in any previous response for
>     that newsgroup sent to any client.

[...]

> Russ's suggestion was to change the MUST to a SHOULD. I feel that we
> need to say something about the times this is broken, but I can't
> offhand think what.

I'm not sure either.  In practice, it's not going to matter very much,
since the other hosts in the cluster are about to expire the same articles
anyway.

-- 
Russ Allbery (rra at stanford.edu)             <http://www.eyrie.org/~eagle/>