Fwd: [ntpwg] KISS codes

[Rob Seaman]

Howdy,

The NTP WG is tying up the loose ends for the next version of NTP.   
There's an interesting discussion ongoing about KoD packets for NTP:

	https://lists.ntp.org/pipermail/ntpwg/2007-July/thread.html

May be pertinent to VOEvent as our customer base grows and we face  
similar problems with kamikazi klients.

Rob
------

Begin forwarded message:

> From: Danny Mayer <mayer at gis.net>
> Date: June 26, 2007 4:52:13 AM MST
> To: NTP Working Group <ntpwg at lists.ntp.isc.org>
> Subject: [ntpwg] KISS codes
> Reply-To: mayer at gis.net
>
> Noone has commented on my recommendations for the KISS codes so I'm
> sending it back out again. This is much more important than the
> discussion on refid.
>
> 4) P24. Section 7.4 last sentence:
>    Other than
>    displaying the kiss code, KoD packets have no protocol significance
>    and are discarded after inspection.
>
> I'd like to see recipients of KISS codes take actions dependent on the
> receipt of some of the codes. Practical experience has shown that the
> operators of public servers need to be able to assert more control  
> over
> the clients that contact their servers. I'd like to therefore change
> this sentence to read as follows:
>
>    Recipients of kiss codes MUST inspect them and in the following  
> cases
>    take these actions:
>    a) For kiss codes: DENY, RSTR the client MUST demobilize any
>       associations to that server and stop sending packets to that
>       server;
>    b) For kiss code: RATE the client MUST immediately reduce its  
> polling
>       interval to that server and continue to reduce it each time it
>       receives a RATE kiss code.
>    c) Other than the above conditions, KoD packets have no protocol
>       significance and are discarded after inspection.
> _______________________________________________
> ntpwg mailing list
> ntpwg at lists.ntp.isc.org
> https://lists.ntp.isc.org/mailman/listinfo/ntpwg

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