moving an NTP server

[cak015]

I have a Stratum level 1(communicated directly with the GPS) NTP server on the same network as my machine who absolutely needs this stratum level 1 time synch. The question is, I need to free up IP addresses on this subnet so I want to move the NTP server out on to a different subnet. Will this move affect my stratum level on my machine?


My understanding is that no it won't affect the stratum level of my machine because stratum level only depends on the number of NTP server hops in between the machine and the GPS. If I'm not adding another NTP server in between then this shouldn't affect my machine's stratum level correct?


thanks!

[Paulen]

Stratum level and TTL has nothing to do with eachother.

TTL starts at a (high) number and drops by one every time the packet hits a router. If the TTL is not decreased, you don't get a 'hop' in your traceroute. Traceing through an MPLS network typically is transparent due to this.

The round-trip-time between your server and machine must be taken into consideration. This should however be a more or less fixed value due to your 'simple network' (one router). Latency isn't crucial - jitter is.

Have also a look at http://www.eecis.udel.edu/%7emills/database/reports/ntp4/ntp4.pdf