Faulty PCM Link

[tomd110]

Hi Everybody!

I have a class 4 alarm on my 3 lim bc9 system

VERSION: ASB50104/10-R6/0/1/N
DATE: 24FEB04 TIME: 07:32:02
CLASS: 4
115 SIGNAL PACKET LENGTH REDUCED
DATE TIME ALP NOIF EQU BRDID INF1
23FEB04 14:07:35 1 1 003-0-00-00 36 1
CLASS: 3
24 FAULTY PCM LINK (GJU)
DATE TIME ALP NOIF GSSIDE GSM
23FEB04 14:07:48 2 1 0 0

Thanx for helping

 

[SYAR2003]

Run new GJLII on all gsmults followed by SFCEI and DUSYI .
It's because the systemdump made by Ericsson once was made with 90byte signalling links . And your system has old GJUG/GJUL boards (with 43byte signalling).

 

[lalrl]

I`dont think so. I have other experiences. If you have 7 new GJUL but one old GJUL, then all links will be reduced.

If you have this alarm like in our example, then it means, system has new GJULS, it was running with 90byte and then there was a problem (faulty PCM-Link) with one link and Packetlength was reduced. In my opinion the one faulty link causes the problem. When problem is solved, Packetlength should be 90 again.

lalrl

 

[whosrdaddy]

I think it's even a known bug in BC9 (not sure though )
just use the procedure syar said and it should return to 90

http://www.damovo.com

 

[SYAR2003]

It's eiter that or insert this patch :

/*======================================================================*/
/* ConNection, Replaced By, Replacing, Transfer From, Transfer To */
/* */
/* Task Id: 68548 - Relates To: */
/* */
/* Related Task: 60968 Relation Name: TF */
/* */
/*======================================================================*/
/* Patch : S68548A PR.Originator : ebcelan */
/* PR.Product.No: 7/CAA 111 792/1 PR.Revision : R1A */
/* PR.Unit : GAM */
/*----------------------------------------------------------------------*/
/* Fault.Descr.And.Explanation : */
/* */
/*The Alarm 115 cannot be taken away if the dump is made from new mechan*/
/*ics and reload it to old mechanics. */
/* */
/*Problem with loading REL dump in old mechanics (wire backplane) when t*/
/*he RELvol has been made in new mechanics (printed circuit backplane). */
/*When you attempt to load an REL (made in new mec.) in old mechanics. y*/
/*ou will get the alarm 115 (SPLIT LIMIT FOR INTER LIM SIGNALS TOO HIGH)*/
/* that is caused by wrong revision of LSU, DSU, BACKPLANE or GJUL......*/
/*but the revision state is OK. */
/* */
/*You will also have problems with dumping (checksum error e.t.c) and da*/
/*ta reloads */
/*that doesn't perform as they should. */
/* */
/*When the REL dump (made in OLD mec.) is loaded in OLD mec. there is N*/
/*O trouble. */
/*When the REL dump (made in OLD mec.) is loaded in NEW mec. there is N*/
/*O trouble. */
/*When the REL dump (made in NEW mec.) is loaded in NEW mec. there is N*/
/*O trouble. */
/* */
/*----------------------------------------------------------------------*/
/* PLEX SOLUTION : */
/*O: 4.3.XX Check and send alarm 115 */
/*O: ------------------------------- */
/*O: ! */
/*O: BEGIN CheckAndSendAlarm115; */
/*O: */
/*O: IF C_SplitLimit_Defined > T_Sup_SL_PCM THEN */
/*O: */
/*O: !--------------------------------------------! */
/*O: !This part is to prevent alarm sending before! */
/*O: !a PCM line is completely initiated ! */
/*O: !--------------------------------------------! */
/*O: IF GJCPTR:LSMULT /= Z_NIL16 THEN */
/*O: IF GJCPTR:Alarm115_Status = S_115NotSent THEN */
/*O: GJCPTR:Alarm115_Status = S_115Sent; */
/*N: !----------------------------------------! */
/*N: !Stop Alarm-115 display continuosly ! */
/*N: !----------------------------------------! */
/*N: C_SplitLimit_Defined = C_SplitLimit_Running; */
/*O: */
/*O: SEND FAULT TO COWNLIMNO WITH */
/*O: ..... */
/*O: FI; */
/*O: FI; */
/*O: FI; */
/*O: */
/*O: END CheckAndSendAlarm115; */
/*----------------------------------------------------------------------*/
/* ASSEMBLY SOLUTION : */
PCASI:CI=S68548A,UNIT=GAM,IA=B062,RA=B068,REV=7-R1A,BYTE=6;
MOVE.W ($14B,A0),D4; ! GET C_SPLITLIMIT_RUNNING !
LEA ($92,A1),A2; ! SAVE TO C_SPLITLIMIT_DEFINED!
TRAPT.L #($A0E40);
END;
!A;
PCACS:UNIT=GAM,CI=S68548A;
Y;
PCCOS:UNIT=GAM,CI=S68548A;
Y;
/*======================================================================*/



SYAR