[Ntp] Antw: [EXT] Port randomization (draft-ietf-ntp-port-randomization-04)

>>> Fernando Gont <fgont@si6networks.com> schrieb am 15.07.2020 um 09:29 in
Nachricht <7e3e5f97-ec92-f1d7-40d7-610beaaf748e@si6networks.com>:
> Folks,
> 
> Based on recent feedback and list discussion, we plan to update this 
> text from Section 4 of draft‑ietf‑ntp‑port‑randomization‑04:
> 
> ‑‑‑‑ OLD ‑‑‑‑
>        The client SHOULD wait for
>        response packets from the server for at least 3 seconds before
>        closing the UDP socket/port, even if a successful response is
>        received.  This will prevent duplicate or delayed server packets
>        from eliciting ICMP port unreachable error messages at the client.
> ‑‑‑‑ OLD ‑‑‑‑
> 
> to:
> 
> ‑‑‑‑ NEW ‑‑‑‑
> 	After receiving a valid response, the client MAY wait for
> 	more responses from the server for a specific period of time
>          (e.g. 3 seconds) before closing the UDP socket/port, to prevent
> 	duplicate or delayed server packets from eliciting ICMP port
> 	unreachable error messages at the client.
> ‑‑‑‑ NEW ‑‑‑‑
> 
> Please do let us know if you have any further comments. Otherwise we'll 
> update the draft as indicated.

Actually I feel changing the ordering (giving reason first, then measure)
would make the sentence easier "to digest":
"To prevent  ICMP port unreachable error messages at the client caused by
duplicate or delayed server packets ... the client MAY wait ..."

> 
> Thanks!
> 
> Cheers,
> ‑‑ 
> Fernando Gont
> SI6 Networks
> e‑mail: fgont@si6networks.com 
> PGP Fingerprint: 6666 31C6 D484 63B2 8FB1 E3C4 AE25 0D55 1D4E 7492
> 
> 
> 
> 
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