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Author Topic: DPNSS link loosing sync  (Read 10411 times)

scuk

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DPNSS link loosing sync
« on: September 17, 2008, 04:57:45 PM »
Hi all,

I have a 3300 CX which breaks out to the PSTN via a DPNSS link to a Meridian Option11.
Every 2 hours the D channel goes down and obviously any calls in progress are dropped. I can see that the 3300 appears to be loosing sync but i do not know why, we have had Meridian engineers in to look at there kit and can not find the cause.
I have attached a copy of the logs below, this happens over and over again every 2 hours on the dot..........HELP !


Maintenance   2638   Warning   2008/Sep/16   05:01:04   DPNSS VDsu Mod 1 Port 1   Maintenance: Category(Category0); msgFormatId(0)D-channel is DOWN!
Maintenance   2637   Info   2008/Sep/16   03:15:59   DpnssM1p1   Maintenance: Category(Category0); msgFormatId(0)MTNETSNC switching to long term accumulator mode for link 0
Maintenance   2636   Warning   2008/Sep/16   03:15:54   Call Control - Maintenance   Maintenance: Category(Category1); msgFormatId(0)                                ------------ Current System Alarm :          | NO ALARM |       viewed from Active                                 ------------
Maintenance   2635   Warning   2008/Sep/16   03:15:52   Call Control - Maintenance   Maintenance: Category(Category1); msgFormatId(0)Change in network synchronizing source from  free run to  source  01 Justification :  New synchronizing source has just become available
Maintenance   2634   Info   2008/Sep/16   03:15:47   DpnssM1p1   Maintenance: Category(Category0); msgFormatId(0)MTNETSNC select clock sync for link 0 health is PASSED
Maintenance   2633   Warning   2008/Sep/16   03:01:26   Call Control - Maintenance   Maintenance: Category(Category1); msgFormatId(0)Change in network synchronizing source from  source  01 to  free run Justification :  system clock at    01   01   01   fails to synchronize
Software   2632   Warning   2008/Sep/16   03:01:23   DPNSS VDsu Mod 1 Port 1   DpnssVdsu::Vdsu2CpHandleMsgInIdle - SENT CRM channel (29).
Software   2631   Warning   2008/Sep/16   03:01:23   DPNSS VDsu Mod 1 Port 1   DpnssVdsu::Vdsu2CpHandleMsgInIdle - SENT CRM channel (28).
Software   2630   Warning   2008/Sep/16   03:01:23   DPNSS VDsu Mod 1 Port 1   DpnssVdsu::Vdsu2CpHandleMsgInIdle - SENT CRM channel (27).
Software   2629   Warning   2008/Sep/16   03:01:23   DPNSS VDsu Mod 1 Port 1   DpnssVdsu::Vdsu2CpHandleMsgInIdle - SENT CRM channel (26).
Software   2628   Warning   2008/Sep/16   03:01:22   DPNSS VDsu Mod 1 Port 1   DpnssVdsu::Vdsu2CpHandleMsgInIdle - SENT CRM channel (25).
Software   2627   Warning   2008/Sep/16   03:01:22   DPNSS VDsu Mod 1 Port 1   DpnssVdsu::Vdsu2CpHandleMsgInIdle - SENT CRM channel (22).
Software   2626   Warning   2008/Sep/16   03:01:22   DPNSS VDsu Mod 1 Port 1   DpnssVdsu::Vdsu2CpHandleMsgInIdle - SENT CRM channel (21).
Software   2625   Warning   2008/Sep/16   03:01:22   DPNSS VDsu Mod 1 Port 1   DpnssVdsu::Vdsu2CpHandleMsgInIdle - SENT CRM channel (20).
Software   2624   Warning   2008/Sep/16   03:01:22   DPNSS VDsu Mod 1 Port 1   DpnssVdsu::Vdsu2CpHandleMsgInIdle - SENT CRM channel (19).
Software   2623   Warning   2008/Sep/16   03:01:22   DPNSS VDsu Mod 1 Port 1   DpnssVdsu::Vdsu2CpHandleMsgInIdle - SENT CRM channel (18).
Software   2622   Warning   2008/Sep/16   03:01:22   DPNSS VDsu Mod 1 Port 1   DpnssVdsu::Vdsu2CpHandleMsgInIdle - SENT CRM channel (17).
Software   2621   Warning   2008/Sep/16   03:01:22   DPNSS VDsu Mod 1 Port 1   DpnssVdsu::Vdsu2CpHandleMsgInIdle - SENT CRM channel (16).
Software   2620   Warning   2008/Sep/16   03:01:22   DPNSS VDsu Mod 1 Port 1   DpnssVdsu::Vdsu2CpHandleMsgInIdle - SENT CRM channel (15).
Software   2619   Warning   2008/Sep/16   03:01:21   DPNSS VDsu Mod 1 Port 1   DpnssVdsu::Vdsu2CpHandleMsgInIdle - SENT CRM channel (14).
Software   2618   Warning   2008/Sep/16   03:01:21   DPNSS VDsu Mod 1 Port 1   DpnssVdsu::Vdsu2CpHandleMsgInIdle - SENT CRM channel (13).
Maintenance   2617   Info   2008/Sep/16   03:01:21   DpnssM1p1   Maintenance: Category(Category0); msgFormatId(0)MTNETSNC disable netsync source link 0 requested
Software   2616   Warning   2008/Sep/16   03:01:21   DPNSS VDsu Mod 1 Port 1   DpnssVdsu::Vdsu2CpHandleMsgInIdle - SENT CRM channel (12).
Maintenance   2615   Info   2008/Sep/16   03:01:21   DPNSS VDsu Mod 1 Port 1   Maintenance: Category(Category0); msgFormatId(0)NetSync unstable phases:  63:  09a 09a 09a 09a 09a 09a 09a 09a 19a 19a 19a 09a 09a 09a 19a 19a   index=6
Maintenance   2614   Info   2008/Sep/16   03:01:21   DPNSS VDsu Mod 1 Port 1   Maintenance: Category(Category0); msgFormatId(0)Potential NetSync problems phase shifts: 1
Software   2613   Warning   2008/Sep/16   03:01:21   DPNSS VDsu Mod 1 Port 1   DpnssVdsu::Vdsu2CpHandleMsgInIdle - SENT CRM channel (11).
Software   2612   Warning   2008/Sep/16   03:01:21   DPNSS VDsu Mod 1 Port 1   DpnssVdsu::Vdsu2CpHandleMsgInIdle - SENT CRM channel (10).
Software   2611   Warning   2008/Sep/16   03:01:21   DPNSS VDsu Mod 1 Port 1   DpnssVdsu::Vdsu2CpHandleMsgInIdle - SENT CRM channel (9).
Software   2610   Warning   2008/Sep/16   03:01:21   DPNSS VDsu Mod 1 Port 1   DpnssVdsu::Vdsu2CpHandleMsgInIdle - SENT CRM channel (8).
Software   2609   Warning   2008/Sep/16   03:01:21   DPNSS VDsu Mod 1 Port 1   DpnssVdsu::Vdsu2CpHandleMsgInIdle - SENT CRM channel (7).
Software   2608   Warning   2008/Sep/16   03:01:20   DPNSS VDsu Mod 1 Port 1   DpnssVdsu::Vdsu2CpHandleMsgInIdle - SENT CRM channel (6).
Software   2607   Warning   2008/Sep/16   03:01:20   DPNSS VDsu Mod 1 Port 1   DpnssVdsu::Vdsu2CpHandleMsgInIdle - SENT CRM channel (5).
Software   2606   Warning   2008/Sep/16   03:01:20   DPNSS VDsu Mod 1 Port 1   DpnssVdsu::Vdsu2CpHandleMsgInIdle - SENT CRM channel (4).
Software   2605   Warning   2008/Sep/16   03:01:20   DPNSS VDsu Mod 1 Port 1   DpnssVdsu::Vdsu2CpHandleMsgInIdle - SENT CRM channel (3).
Software   2604   Warning   2008/Sep/16   03:01:20   DPNSS VDsu Mod 1 Port 1   DpnssVdsu::Vdsu2CpHandleMsgInIdle - SENT CRM channel (2).
Maintenance   2603   Warning   2008/Sep/16   03:01:19   Call Control - Maintenance   Maintenance: Category(Category1); msgFormatId(0)
Maintenance   2602   Warning   2008/Sep/16   03:01:19   Call Control - Maintenance   Maintenance: Category(Category1); msgFormatId(0)---------------+--------+-------+-------+-------+---------+---------+---------- Trunks         |    38  |     1 |   2 | Minor |   > 0 |    10 |   100 | ---------------+--------+-------+-------+-------+---------+---------+----------
Maintenance   2601   Warning   2008/Sep/16   03:01:19   Call Control - Maintenance   Maintenance: Category(Category1); msgFormatId(0)---------------+--------+-------+-------+-------+---------+---------+----------                |Total In|      Unavailable      | Alarm Threshold Percentages    Category    | System | Total |    | Alarm |  MINOR  |  MAJOR  | CRITICAL
Maintenance   2600   Warning   2008/Sep/16   03:01:19   Call Control - Maintenance   Maintenance: Category(Category1); msgFormatId(0)                                ------------ Current System Alarm :          |  MINOR   |       viewed from Active                                 ------------
Software   2599   Warning   2008/Sep/16   03:01:17   DPNSS VDsu Mod 1 Port 1   DpnssVdsu::Vdsu2CpHandleMsgInIdle - SENT CRM channel (29).
Software   2598   Warning   2008/Sep/16   03:01:17   DPNSS VDsu Mod 1 Port 1   DpnssVdsu::Vdsu2CpHandleMsgInIdle - SENT CRM channel (28).
Software   2597   Warning   2008/Sep/16   03:01:16   DPNSS VDsu Mod 1 Port 1   DpnssVdsu::Vdsu2CpHandleMsgInIdle - SENT CRM channel (27).
Software   2596   Warning   2008/Sep/16   03:01:16   DPNSS VDsu Mod 1 Port 1   DpnssVdsu::Vdsu2CpHandleMsgInIdle - SENT CRM channel (26).
Software   2595   Warning   2008/Sep/16   03:01:16   DPNSS VDsu Mod 1 Port 1   DpnssVdsu::Vdsu2CpHandleMsgInIdle - SENT CRM channel (25).
Software   2594   Warning   2008/Sep/16   03:01:16   DPNSS VDsu Mod 1 Port 1   DpnssVdsu::Vdsu2CpHandleMsgInIdle - SENT CRM channel (22).
Software   2593   Warning   2008/Sep/16   03:01:16   DPNSS VDsu Mod 1 Port 1   DpnssVdsu::Vdsu2CpHandleMsgInIdle - SENT CRM channel (21).
Software   2592   Warning   2008/Sep/16   03:01:16   DPNSS VDsu Mod 1 Port 1   DpnssVdsu::Vdsu2CpHandleMsgInIdle - SENT CRM channel (20).
Software   2591   Warning   2008/Sep/16   03:01:16   DPNSS VDsu Mod 1 Port 1   DpnssVdsu::Vdsu2CpHandleMsgInIdle - SENT CRM channel (19).
Software   2590   Warning   2008/Sep/16   03:01:15   DPNSS VDsu Mod 1 Port 1   DpnssVdsu::Vdsu2CpHandleMsgInIdle - SENT CRM channel (18).
Software   2589   Warning   2008/Sep/16   03:01:15   DPNSS VDsu Mod 1 Port 1   DpnssVdsu::Vdsu2CpHandleMsgInIdle - SENT CRM channel (17).
Software   2588   Warning   2008/Sep/16   03:01:15   DPNSS VDsu Mod 1 Port 1   DpnssVdsu::Vdsu2CpHandleMsgInIdle - SENT CRM channel (16).
Software   2587   Warning   2008/Sep/16   03:01:15   DPNSS VDsu Mod 1 Port 1   DpnssVdsu::Vdsu2CpHandleMsgInIdle - SENT CRM channel (15).
Software   2586   Warning   2008/Sep/16   03:01:15   DPNSS VDsu Mod 1 Port 1   DpnssVdsu::Vdsu2CpHandleMsgInIdle - SENT CRM channel (14).
Software   2585   Warning   2008/Sep/16   03:01:15   DPNSS VDsu Mod 1 Port 1   DpnssVdsu::Vdsu2CpHandleMsgInIdle - SENT CRM channel (13).
Software   2584   Warning   2008/Sep/16   03:01:15   DPNSS VDsu Mod 1 Port 1   DpnssVdsu::Vdsu2CpHandleMsgInIdle - SENT CRM channel (12).
Software   2583   Warning   2008/Sep/16   03:01:15   DPNSS VDsu Mod 1 Port 1   DpnssVdsu::Vdsu2CpHandleMsgInIdle - SENT CRM channel (11).
Software   2582   Warning   2008/Sep/16   03:01:15   DPNSS VDsu Mod 1 Port 1   DpnssVdsu::Vdsu2CpHandleMsgInIdle - SENT CRM channel (10).
Software   2581   Warning   2008/Sep/16   03:01:14   DPNSS VDsu Mod 1 Port 1   DpnssVdsu::Vdsu2CpHandleMsgInIdle - SENT CRM channel (9).
Software   2580   Warning   2008/Sep/16   03:01:14   DPNSS VDsu Mod 1 Port 1   DpnssVdsu::Vdsu2CpHandleMsgInIdle - SENT CRM channel (8).
Software   2579   Warning   2008/Sep/16   03:01:14   DPNSS VDsu Mod 1 Port 1   DpnssVdsu::Vdsu2CpHandleMsgInIdle - SENT CRM channel (7).
Software   2578   Warning   2008/Sep/16   03:01:14   DPNSS VDsu Mod 1 Port 1   DpnssVdsu::Vdsu2CpHandleMsgInIdle - SENT CRM channel (6).
Software   2577   Warning   2008/Sep/16   03:01:14   DPNSS VDsu Mod 1 Port 1   DpnssVdsu::Vdsu2CpHandleMsgInIdle - SENT CRM channel (5).
Software   2576   Warning   2008/Sep/16   03:01:14   DPNSS VDsu Mod 1 Port 1   DpnssVdsu::Vdsu2CpHandleMsgInIdle - SENT CRM channel (4).
Software   2575   Warning   2008/Sep/16   03:01:14   DPNSS VDsu Mod 1 Port 1   DpnssVdsu::Vdsu2CpHandleMsgInIdle - SENT CRM channel (3).
Software   2574   Warning   2008/Sep/16   03:01:14   DPNSS VDsu Mod 1 Port 1   DpnssVdsu::Vdsu2CpHandleMsgInIdle - SENT CRM channel (2).
Maintenance   2573   Info   2008/Sep/16   03:01:12   Call Control - Maintenance   Maintenance: Category(Category1); msgFormatId(0)MC269CA Universal E1 at location 06 1 02 01  Type of diagnostics :   Background Scope of report :   Hybrid  Reason(s) for report:       - Remote Alarm Indication Signal :  Absent
Maintenance   2572   Info   2008/Sep/16   03:01:12   DPNSS VDsu Mod 1 Port 1   Maintenance: Category(Category0); msgFormatId(0)D-channel is UP.
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Offline Chakara

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Re: DPNSS link loosing sync
« Reply #1 on: September 17, 2008, 11:49:27 PM »
  Someone who knows more about this may reply.  It looks like the Mitel is syncing to clock source 01 - which I think is set to PLID 1,1,1???  Who is supposed to be the master clock - Mitel or Meridian? 

  I'm probably way off on this one.....

-Chak
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Offline ralph

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Re: DPNSS link loosing sync
« Reply #2 on: September 18, 2008, 09:13:07 AM »
So that we can see a little more detail on this, go to the command line and type the command "dts read <PLID OF CIRC> last 12".
Capture the text and upload it here.

This tells me you have a problem with the T-1 itself.
Quote
Type of diagnostics :   Background Scope of report :   Hybrid  Reason(s) for report:       - Remote Alarm Indication Signal :  Absent


Now the "phase shifts" tells me that you might have the Mitel trying to clock off the Nortel and the Nortel clocking of the Mitel.  If this is happening then they can never *quite* get into sync and the link will eventually reset.   The Nortel is notorious for when the span drops to have to dial into it and reset it whereas the Mitel will recover without intervention. 

If clocking is set properly, look to replace your stratum clock.  I've seen this very recently on one of our systems and replacing the clock resolved the problem.

Ralph
www.usartandcraft.com
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Offline v2win

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Re: DPNSS link loosing sync
« Reply #3 on: September 18, 2008, 02:27:22 PM »
On the Nortel go into LD 60 and SSCK 0 and see what the clock source is set to it it the PSTN or the Mitel
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Offline Chakara

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Re: DPNSS link loosing sync
« Reply #4 on: September 18, 2008, 11:58:36 PM »
WooHoo!  I was totally guessing and seem to have been on the same track that the experts are on.  Maybe I'll learn something about this stuff yet!

-Chak
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