[cisco-voip] Time on CCMs and phones..

[Simon, Bill]

We've found that the NTPD service (Cisco NTP) that comes with 
CallManager is right-on and very reliable.  We use that instead of the 
Windows time service.  That would be my recommendation.


Tim Reimers wrote:
> hi everyone-
> 
> I'm having trouble with drifting time on phones-
> 
> My setup -
> acsccm1 and acsccm2 (publisher/subscriber on 4.01)
> acsunity (Unity 4.x)
> 
> Supposedly, acsccm1 and acsccm2 get their time from acsunity
> acsunity gets its time from ntp.bellsouth.net
> That’s the same timeserver my main data network uses.
> 
> What's weird is that all three 'sets' of servers vary in their time -
> ACSCCM1 and CCM2 usually are not far apart- 15 seconds at most.
> But Unity this AM was more than 10 minutes different from the two CCMs
> And all the VOIP servers were at least 12 minutes different from my data 
> timeservers.
> 
> No firewalls are blocking timeserver ports- a freeware 'get the time' 
> utility can use ntp.bellsouth.net and successfully get the time and 
> display it - on all three servers.
> 
> No timezone differences (that would result in whole hours being 
> different anyhow, not just minute differences)
> 
> 
> Why are these servers not keeping time with each other, when both are 
> looking to ACSUNITY, at the very least, and
> Unity is looking at the same public timeserver that my main DCs are for 
> my data network?
> 
> 
> Here's some w32TM output from the various servers.
> _*From ACSCCM1  - you can see that it's NTP server is acsunity*_**
> C:\>w32tm -source -v
> W32Time: BEGIN:InitAdjIncr
> W32Time:    Adj 156254 , Incr 156250  fAdjust 0
> W32Time:    156254 Adj!=Incr 156250
> W32Time: END:Line 2503
> W32Time: BEGIN:TsUpTheThread
> W32Time: END  Line 1407
> W32Time: TimeMMInit()
> W32Time: Kernel timer : using default maximum resolution
> W32Time:                MaximumTime = 156250
> W32Time:                CurrentTime = 9766
> W32Time: Timer calibrated, looped 1 times
> W32Time: BEGIN:InitTmCfg
> W32Time: END:Line 807
> W32Time: BEGIN:InitTmCli
> W32Time: END:Line 2596
> W32Time: BEGIN:InitTmData
> W32Time: END:Line 2618
> W32Time: AvoidTimeSyncOnWan 0
> W32Time: ntpserver - acsunity
> W32Time: BEGIN:CMOSSynchSet
> W32Time:    Setting adjustment 156254 - Bool  0
> W32Time:    BEGIN:SetTSTimeRes
> W32Time:    END:Line 1295
> W32Time: END:Line 864
> W32Time: BEGIN:InitializeDC
> W32Time:    BEGIN:GetRole
> W32Time:       Role is 'workstation'
> W32Time:    END  Line 672
> W32Time: END:Line 704
> 
> 
> 
> 
> 
> _*w32TM output from ACSUNITY - shows ntp.bellsouth.net*_**
> C:\Documents and Settings\Administrator>w32tm -v -source
> W32Time: BEGIN:InitAdjIncr
> W32Time:    Adj 156250 , Incr 156250  fAdjust 0
> W32Time: END:Line 2503
> W32Time: BEGIN:TsUpTheThread
> W32Time: END  Line 1407
> W32Time: TimeMMInit()
> W32Time: Kernel timer : using default maximum resolution
> W32Time:                MaximumTime = 156250
> W32Time:                CurrentTime = 9766
> W32Time: Timer calibrated, looped 1 times
> W32Time: BEGIN:InitTmCfg
> W32Time: END:Line 807
> W32Time: BEGIN:InitTmCli
> W32Time: END:Line 2596
> W32Time: BEGIN:InitTmData
> W32Time: END:Line 2618
> W32Time: AvoidTimeSyncOnWan 0
> W32Time: ntpserver - ntp.bellsouth.net
> W32Time: BEGIN:CMOSSynchSet
> W32Time:    Setting adjustment 156250 - Bool  0
> W32Time:    BEGIN:SetTSTimeRes
> W32Time:    END:Line 1295
> W32Time: END:Line 864
> W32Time: BEGIN:InitializeDC
> W32Time:    BEGIN:GetRole
> W32Time:       Role is 'PDC'
> W32Time:    END  Line 672
> W32Time:    BEGIN:FetchParentDomainName
> W32Time:       NetLogonGetTimeServiceParentDomain() returned 54b with ptr 0
> W32Time:    END:Line 782
> W32Time: END:Line 704
> W32Time: Server: Binding to 1 NIC.
> W32Time: bind failed: 0x80072740
> W32Time: Logging event 0xC0000031. 15 min until this event is allowed 
> again.
> W32Time: 0xC0000031 reported to System Log in Event Viewer
> W32Time: BEGIN:FinishCleanup
> W32Time:    BEGIN:TsUpTheThread
> W32Time:    END  Line 1407
> W32Time:    BEGIN:UnInitializeDC
> W32Time:       Ptrs 0 - 0
> W32Time:    END:Line 727
> W32Time:    Time service stopped.
> W32Time: END:Line 407
> 
> 
> 
> 
> 
> ------------------------------------------------------------------------
> 
> _______________________________________________
> cisco-voip mailing list
> cisco-voip at puck.nether.net
> https://puck.nether.net/mailman/listinfo/cisco-voip

-- 
Bill Simon - bills at tns.its.psu.edu - (814) 865-2270
http://tns.its.psu.edu/