cancel
Showing results for 
Search instead for 
Did you mean: 
cancel
987
Views
0
Helpful
2
Replies

NTP not working

ashararitesh
Level 1
Level 1

Dear All,

 

I have NTP server in Windows Server 2012, I want client configuration in cisco WS-C2960X-48LPS-L switch & router but not working see below configuration.

 

Switch(config)#do show running-config | inclu
Switch(config)#do show running-config | include ntp
ntp server 172.20.2.31 prefer
Switch(config)#do show ntp ass
Switch(config)#do show ntp associations

address ref clock st when poll reach delay offset disp
~172.20.2.31 172.20.2.100 4 34 64 377 1.200 -197389 16.500
* sys.peer, # selected, + candidate, - outlyer, x falseticker, ~ configured
switch(config)#do show clock detail
.03:26:42.827 IST Fri Nov 3 2017
Time source is NTP

switch(config)#do show ntp associations detail
172.20.2.31 configured, ipv4, insane, invalid, stratum 4
ref ID 172.20.2.100 , time DDA5C633.E55F2600 (21:58:35.895 IST Thu Nov 2 2017)
our mode client, peer mode server, our poll intvl 64, peer poll intvl 64
root delay 62.50 msec, root disp 15370.98, reach 375, sync dist 17042.90
delay 1.69 msec, offset -19737051.1987 msec, dispersion 16.98, jitter 1622.66 msec
precision 2**6, version 4
assoc id 52239, assoc name 172.20.2.31
assoc in packets 83, assoc out packets 83, assoc error packets 21
org time 00000000.00000000 (05:30:00.000 IST Mon Jan 1 1900)
rec time DDA5C655.A55F2600 (21:59:09.645 IST Thu Nov 2 2017)
xmt time DDA5C655.A55F2600 (21:59:09.645 IST Thu Nov 2 2017)
filtdelay = 1.69 1.20 2.75 3.05 2.73 1.48 2.99 2.92
filtoffset = -197370 -197389 -197390 -197389 -197390 -197384 -197379 -197376
filterror = 15.62 17.57 18.53 19.49 20.50 21.47 22.48 23.48
minpoll = 6, maxpoll = 10

2 Replies 2

Mark Malone
VIP Alumni
VIP Alumni
can it reach the MS server from the switch ok ping it fine , set an extended ping to it if so ?
set the time locally on the switch and the NTP will sync quicker too, if possible a reload may sync it straight away in some cases

it says its getting time from NTP server , did it reach it before ? or is this an updated Ip of server

Leo Laohoo
Hall of Fame
Hall of Fame

The reason why NTP won't/never work is because the NTP "source" is a Windows-based system.  MS' "NTP" is not based on standards but their own interpretation.  MS boxes can sync NTP with anyone else but not the other way around.