Network Time Sync

[mojoputter]

Even after we have configured our CM for the network time server it is still a minute or two off. Both servers are configured, but its off by 1 or 2 minutes every day.
S8700, CM 3.1

 

[dufus2506]

You need to stop and restart the NTP services for the time to synchronize with the PBX.

Also, you should know that the time you see on phone clocks can be radically different than the PBX time on DCP stations. VoIP stations tend to be more synchronized, but DCP stations (6400, 8400, etc) have their own clock circuits. They're notoriously bad at keeping time, and need to be adjusted periodically.


Carpe dialem! (Seize the line!)

 

[AvayaTier3]

display system-parameters features                              Page  10 of  15
                        FEATURE-RELATED SYSTEM PARAMETERS

   Hear Zip Tone Following VOA? y    System Updates Time On Station Displays? y

Setting the system to update clocks on phones will help with this.

hitting the date button on the phone actually syncs the phone clock with the switch clock. It does not sync to the seconds.... only hour and minute.



A great teacher, does not provide answers, but methods to teach others "How and where to find the answers"

bsh

35 years Bell, AT&T, Lucent, Avaya
Tier 3 for 25 years and counting

http://bshtele.com

 

[mojoputter]

OK, please tell me how to stop & start NTP services

 

[Mitch672]

you probably won't have permisions to do it, so the simplest way to get it done is to reboot the switch... unfortunatley.

Here is a detailed list of every command, you could use to work on NTP in Communications Manager, thanks to Jaymzworld:

http://www.jaymzworld.com/wiki/Network_Time_Protocol_in_Communication_Manager

Mitch

AVAYA Certified Expert

 

[gblucas]

You can just do an interchange and it will take care of it...

gblucas

 

[mojoputter]

We have done the interchange twice, so it seems to need the reboot.

Mitch, I did look at the jaymzworld doc and once I telnet into the 8700 and type any ntp command it does not recognize the coomand. -bash ntpq: command not found

wtf

 

[AvayaTier3]

These commands can be run by sroot:

/sbin/service ntpd status
/sbin/service ntpd start
/sbin/service ntpd stop

These commands can be run by dadmin

/usr/sbin/ntpdate -d -q 192.168.1.1
/usr/sbin/ntpdc
/usr/sbin/ntpq -p
/usr/sbin/ntptime
/usr/sbin/ntptrace 192.168.1.1
/usr/bin/ntpstat

/usr/sbin
-rwxr-xr-x 1 root root 431048 Apr 20 2006 ntpd
-rwxr-xr-x 1 root root 45908 Apr 20 2006 ntpdate
-rwxr-xr-x 1 root root 86940 Apr 20 2006 ntpdc
-rwxr-xr-x 1 root root 76732 Apr 20 2006 ntpq
-rwxr-xr-x 1 root root 16276 Apr 20 2006 ntptime
-rwxr-xr-x 1 root root 1837 Apr 20 2006 ntptrace

/usr/bin
-rwxr-xr-x 1 root root 6032 Apr 20 2006 ntpstat

Man pages in linux to explain options and usage:
man ntpd
man ntpdate
man ntpdc
man ntpq
man ntptime
man ntptrace



A great teacher, does not provide answers, but methods to teach others "How and where to find the answers"

bsh

35 years Bell, AT&T, Lucent, Avaya
Tier 3 for 25 years and counting

http://bshtele.com

 

[AvayaTier3]

Without sroot access, the way to restart ntp is to reboot the server.

There are bugs on many cm versions regarding ntp. Do not setup ntp server with the browser, then later change the ntp to local and back to a time server. It may break ntp and prevent it from working again. These bugs may not be addressed until cm5.

A great teacher, does not provide answers, but methods to teach others "How and where to find the answers"

bsh

35 years Bell, AT&T, Lucent, Avaya
Tier 3 for 25 years and counting

http://bshtele.com

 

[DontDeleteMeAgain]

you could also put the IP address of the NTP server from the "configure server" link in the maint web interface