Ray,
I have never put the "NTP master" command on my routers and I have not had an
issue with the CUCM sync to the (HQ) router. I use mainly the VRACKs from
proctor, and in my little lab at home it's the same. As long as I have set the
time I want in the PSTN router for the HQ router to sync off I have not had an
issue.
EJF
________________________________
From: Ray <jonha...@yahoo.com>
To: Justin Barksdale <jus...@barksdale.net>; "ccie_voice@onlinestudylist.com"
<ccie_voice@onlinestudylist.com>
Sent: Monday, September 19, 2011 1:12 AM
Subject: Re: [OSL | CCIE_Voice] ntp
Ntp is not slow when i put the ntp master command on HQ router and the cucm syn
right the way. i took off the ntp master from the hq and only have ntp server
and ntp source lo0. and reboot the cucm and the hq. and let it set for 4hrs to
5hrs and the cucm would not syn, but the moment i put the ntp master it syns
within 2 mins... you can try it in you lab and let me know.. make sure you
reboot the cucm and the hq router...
________________________________
From: Justin Barksdale <jus...@barksdale.net>
To: "ccie_voice@onlinestudylist.com" <ccie_voice@onlinestudylist.com>
Sent: Sunday, September 18, 2011 9:14 PM
Subject: Re: [OSL | CCIE_Voice] ntp
NTP is by nature slow. An earlier post pointed out the correct method. If the
question wants you to sync hq with the pstn and then ccm with hq then the ntp
master command will break this requirement. All that is required on the HQ
router is ntp server x.x.x.x
This is also mentioned in Vic's class class as well as Cisco documentation.
The important key here is that the ntp master command can cause you to override
a valid external time source and thus can be very dangerous. As long as the
ntp server command points to a valid and reachable ntp source then the hq
router will sync and you WILL be able to sync ucm without the ntp master
command.
Justin
Barksdale
CCIE# 29866
Voice
Sent from my iPhone 4. Please excuse any typos.
On Sep 18, 2011, at 7:39 PM, ccie_voice-requ...@onlinestudylist.com wrote:
> Re: [OSL | CCIE_Voice] ntp
_______________________________________________
For more information regarding industry leading CCIE Lab training, please visit
www.ipexpert.com
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_______________________________________________
For more information regarding industry leading CCIE Lab training, please visit
www.ipexpert.com
Are you a CCNP or CCIE and looking for a job? Check out
www.PlatinumPlacement.com
_______________________________________________
For more information regarding industry leading CCIE Lab training, please visit
www.ipexpert.com
Are you a CCNP or CCIE and looking for a job? Check out
www.PlatinumPlacement.com
