[ntpwg] KISS codes

Danny Mayer mayer at gis.net
Tue Jun 26 12:44:25 UTC 2007


Heiko Gerstung wrote:
> Danny Mayer schrieb:
>> 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.
>>   
> Works for me. If we have the chance, we should try to enforce people to
> actually honor the KISS codes and Danny's proposal does exactly that.
> However, I could live with the existing version as well, since this is
> the status quo and in the real world those crazy clients are neither
> running NTPv4 nor do they care about RFCs ... *sigh*
> 

The goal is to change the status quo and the servers that are making
their services available a chance to indicate to clients to change their
behavior. Having this embedded in an RFC is much better than having
nothing there at all. We are all aware of client behavior but we do need
to take the opportunity to try and influence it.

Danny
> Regards,
> Heiko
> 
> 
> 



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