[58960] in North American Network Operators' Group

home help back first fref pref prev next nref lref last post

Re: pool.ntp.org NTP servers

daemon@ATHENA.MIT.EDU (Robert Boyle)
Sat Jun 7 23:27:34 2003

Date: Sat, 07 Jun 2003 23:26:56 -0400
To: nanog@nanog.org
From: Robert Boyle <robert@tellurian.com>
In-Reply-To: <g3wufxp8v6.fsf@sa.vix.com>
Errors-To: owner-nanog-outgoing@merit.edu


At 03:05 AM 6/8/2003 +0000, Paul Vixie wrote:
>what you're looking for in terms of an ntp server is "best isochrony".
>as long as the delay and loss constant it doesn't matter how high they
>are.  a secondary sort term would be server load, but presumably a
>server which was too loaded could just stop answering new clients.
>
>time, like netnews, should roughly follow router topology.  get time from
>your isp and let them get it from GPS/GOES or their peers/transits/whatever.

We run NTP client and server on all of our customer touching and core 
routers and we just tell them to make their WAN gateway their NTP server. 
This works well for us and we need to have correct and synchronized time on 
all of our routers for logging and debugging purposes anyway. The processor 
penalty seems to be very minimal (if anything) to respond to NTP requests 
and seems to make sense to further the load distribution as much as 
possible. Do others do this? does anyone see a reason it shouldn't be done 
this way? It just seemed to make sense to me.

-Robert


Tellurian Networks - The Ultimate Internet Connection
http://www.tellurian.com | 888-TELLURIAN | 973-300-9211
"Good will, like a good name, is got by many actions, and lost by one." - 
Francis Jeffrey


home help back first fref pref prev next nref lref last post