[ntpwg] NTPv4 Draft issue [RATE]

[Danny Mayer]

rich.osman at nsn.com wrote:
>  
> Y'all:
> 
> Reference: RATE On Page 23 section 7.4 (b) says:
> 
> 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."
>  
> This seems to require a behavior that doesn't make sense to me.  If I
> parse this using definition 1) below it says that the client will poll
> the root **more frequently** when I suspect the intent to get it to slow
> down.  The mailing list discussions I found seem to back this up.
>  
> I would change the text to replace the word 'interval' with the word
> 'rate.' 
>  

You are correct. I really did mean to poll less frequently.

Danny
> Webster's says:
> Interval:
>  
> 	1 a : a space of time between events or states b British :
> INTERMISSION
> 	2 a : a space between objects, units, points, or states b :
> difference in pitch between tones
> 	3 : a set of real numbers between two numbers either including
> or excluding one or both of them
> 	4 : one of a series of fast-paced exercises interspersed with
> slower ones or brief rests for training (as of an athlete) 
>  
> And a point of curiosity: why isn't the magnitude of back off specified?
> Looking at the mailing list traffic this was mentioned, but does not
> seem to have been followed up. This seems to be a congestion control
> mechanism.  I can see someone backing off 1 ns per RATE packet and
> claiming compliance.  That gives them an advantage in a congested
> environment.  I suppose the server can DENY a client it doesn't see
> backing off fast enough, but I can see lots of room for disagreement
> depending on the focus of the developer. I'd use a factor of 10 or at
> least a factor of two back off. 
> 
> --
> 
> Rich Osman
> Nokia Siemens Networks
> Cell: +1 469-831-5513 
> SMS (email to phone) mailto:4698315513 at tmomail.net
>   GSM: +358 40 546 7374 (When out of US)
> mailto:rich.osman at nsn.com
> 6000 Connection Drive; Irving, TX  75039
> 
> _______________________________________________
> ntpwg mailing list
> ntpwg at lists.ntp.org
> https://lists.ntp.org/mailman/listinfo/ntpwg
>