Hi,
having a little trouble with NTP on my routers + cannot find any decent documentation on this one.
below is a chain of routers in the NTP comms path
Internet Time Source
V
V
My Internet Router(show ntp ass shows in sync with Internet Time Source master)
V
V
Microsoft server running NTP 4 on a DMZ(all in sync and looks good using Internet router above)
V
V
My 7200 Core Router1(Configured to use Microsort Server above but not in Sync)
V
V
My 7200 Core Router 2(Configured to use Core Router 1 as a source but not in sync)
On the Core router 1, when I enter the Server command pointing towards the Microsoft Server running NTP 4) it selects as master and becomes synced, but over say 5 minutes it then looses sync and marks the source as insane.(please see below taken over a 5 minute spell)
Any pointers would be appreciated.
address ref clock st when poll reach delay offset disp
*~1.1.1.1 2.2.2.2 3 56 64 377 0.7 69.07 7.0
* master (synced), # master (unsynced), + selected, - candidate, ~ configured
Router-1#show ntp ass
address ref clock st when poll reach delay offset disp
*~1.1.1.1 2.2.2.2 3 9 64 377 1.9 378.55 309.4
* master (synced), # master (unsynced), + selected, - candidate, ~ configured
Router-1#show ntp ass
address ref clock st when poll reach delay offset disp
*~1.1.1.1 2.2.2.2 3 53 64 377 0.7 693.56 465.9
* master (synced), # master (unsynced), + selected, - candidate, ~ configured
Router-1#show ntp ass
address ref clock st when poll reach delay offset disp
*~1.1.1.1 2.2.2.2 3 0 64 377 0.7 1010.3 544.7
* master (synced), # master (unsynced), + selected, - candidate, ~ configured
Router-1#show ntp ass
address ref clock st when poll reach delay offset disp
*~1.1.1.1 2.2.2.2 3 33 64 377 0.9 3220.2 609.7
* master (synced), # master (unsynced), + selected, - candidate, ~ configured
Router-1#show ntp ass
address ref clock st when poll reach delay offset disp
*~1.1.1.1 2.2.2.2 3 36 64 377 0.8 3851.7 609.4
* master (synced), # master (unsynced), + selected, - candidate, ~ configured
Router-1#show ntp ass
address ref clock st when poll reach delay offset disp
*~1.1.1.1 2.2.2.2 3 4 64 377 0.7 4166.5 608.4
* master (synced), # master (unsynced), + selected, - candidate, ~ configured
Router-1#show ntp ass
address ref clock st when poll reach delay offset disp
*~1.1.1.1 2.2.2.2 3 6 64 377 0.7 4483.1 609.7
* master (synced), # master (unsynced), + selected, - candidate, ~ configured
Router-1#show ntp ass
address ref clock st when poll reach delay offset disp
~1.1.1.1 2.2.2.2 3 20 64 0 1.0 316.75 16000.
* master (synced), # master (unsynced), + selected, - candidate, ~ configured
Router-1#
