Hi,

have there been any substantive changes addressing the lack of congestion 
control? If I recall correctly, that was the critical issue in the past. (The 
diff at the URL below doesn't seem to do that.)

Lars

On 2014-3-13, at 23:22, joel jaeggli <[email protected]> wrote:

> Greetings,
> 
> I have taken on the AD sponsorship of
> draft-masotta-tftpexts-windowsize-opt and am looking for some additional
> review before revisiting the subject of and IETF last call.
> 
> https://datatracker.ietf.org/doc/draft-masotta-tftpexts-windowsize-opt/
> 
> from Martin Stiemerling . The concerns expressed in the IESG review of
> the independent stream submission of this document are visible here:
> 
> https://datatracker.ietf.org/doc/conflict-review-masotta-tftpexts-windowsize-opt/ballot/311132/
> 
> The author  and I have discussed and applied non-normative text to the
> document describing how TFTP implementations respond to persistent error
> conditions, inclusive of repeated loss. While somewhat different in
> effect than traditional implementations of RFC 1350, implementations of
> tftp window-size applying behavior consistent with current tftp
> implementations and the advice in draft-masotta-tftpexts-windowsize-opt
> can be expected to do what tftp implementations do in the the face of
> persistent or pathological conditions (which is bail-out) e.g. fail.
> 
> diff vs 08 which Martin was shepherding is visble here.
> 
> http://tools.ietf.org/rfcdiff?url2=draft-masotta-tftpexts-windowsize-opt-09.txt
> 
> While we could revisit the subject of advice that RFC 1350 provides to
> implementers with respect to when to bail-out (It doesn't provide any,
> nor do subsequent updates) existing lore, mature code and common sense
> (in addition to how it is commonly used) have effectively prevented TFTP
> from becoming  a menace for more than two decades, a modest extension to
> allow transmission queues greater than lock-step transmission for
> supporting implementations should not in my view motivate significant
> concern but I'd like feedback on that...
> 
> Thanks
> joel
> 

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