[ntp:questions] Re: Asymmetric Network and Delay Questions.

Terje Mathisen terje.mathisen at hda.hydro.com
Fri Jul 15 14:06:08 UTC 2005


Richard B. Gilbert wrote:

> Brad Knowles wrote:
>>     I should mention one other thing -- if you use a broadcast NTP
>> service, then you don't have to worry about asymmetry. The clients
>> just sit and passively listen to the server broadcasting the time, and
>> then apply what they receive.
>>
> I don't believe this is completely correct.  Doesn't a broadcast client
> exchanges packets with the server when it initializes, in order to
> determine the network delay?

By default, yes!

On true one-way links, you can set an option ('tinker novolley' afair)
to disable this initial startup sequence.

Terje

-- 
- <Terje.Mathisen at hda.hydro.com>
"almost all programming can be viewed as an exercise in caching"




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