PBX PRI Errors

karthisu · August 25th, 2008, 01:18 AM

Hi,

We are having PRIs for 2 different PBX (Both Nortel) from the same Vendor. The problem is we are having these group 2 alarms(AIS), FAP alarms that are coming simultaneously in both the PBXs.

We strongly believe that it could be a transport issue. When we contacted the vendor, they have provided the logs for the same time period and there are no alarms in the system.

Can any body please help me out in the PRI errors and help in resolving the issue?

Logs:

DTC001
DCH: 26 RLS NO RESPONSE TIME: 4:17:10 19/08/2008

DTA203 26 3 2

DTA203 26 3 1

DTA301 27

DTA203 26 3 0

DCH: 26 EST CONFIRM TIME: 4:18:18 19/08/2008

DCH: 62 RLS NO RESPONSE TIME: 4:17:10 19/08/2008

DCH: 61 RLS NO RESPONSE TIME: 4:17:10 19/08/2008

DCH: 62 RLS NO RESPONSE TIME: 4:17:16 19/08/2008

DCH: 61 RLS NO RESPONSE TIME: 4:17:16 19/08/2008

DCH: 87 RLS NO RESPONSE TIME: 4:17:21 19/08/2008

DTA203 87 3 2

DTA203 61 3 2

DTA203 87 3 1

DTA203 61 3 1

DTA203 62 3 2

DTA203 62 3 1

DTA203 62 3 0

DTA203 61 3 0

DCH: 62 EST AUTO REC TIME: 4:18:19 19/08/2008

DTA203 87 3 0

DCH: 87 EST CONFIRM TIME: 4:18:19 19/08/2008

DCH: 61 EST AUTO REC TIME: 4:18:19 19/08/2008

LCNT Output

PRI2 LOOP 26
MNT NNDC NNC OOS
BPV- 000 000 000 000
FAP- 001 000 001 000
SLP- 000 000 000 000
CRC- 000 000 000 000
G2 - 000 000 000 000
MAINT NONEWCALL UNAVAIL SEVERE
TOTAL 24HR BPV - 000000000 000000000 000000000 000000000
TOTAL 24HR CRC - 000000000 000000000 000000000 000000000
TOTAL 24HR FAP - 000000001 000000001 000000000 000000000
TOTAL 24HR SLPREP - 000000000
TOTAL 24HR SLPDEL - 000000000
TOTAL 24 HOUR G2 AIS -000000001
TOTAL 24 HOUR G2 LFAS -000000000
TOTAL 24 HOUR G2 LMAS -000000000
TOTAL 24 HOUR G2 RAI -000000000
TOTAL 24 HOUR G2 LOS -000000000
TOTAL 24 HOUR G2 RAIE -000000000
.lcnt 6

PRI2 LOOP 6
MNT NNDC NNC OOS
BPV- 000 000 000 000
FAP- 000 000 002 000
SLP- 000 000 000 000
CRC- 000 000 000 000
G2 - 000 000 000 000
MAINT NONEWCALL UNAVAIL SEVERE
TOTAL 24HR BPV - 000000000 000000000 000000000 000000000
TOTAL 24HR CRC - 000000000 000000000 000000000 000000000
TOTAL 24HR FAP - 000000000 000000002 000000000 000000000
TOTAL 24HR SLPREP - 000000000
TOTAL 24HR SLPDEL - 000000000
TOTAL 24 HOUR G2 AIS -000000000
TOTAL 24 HOUR G2 LFAS -000000000
TOTAL 24 HOUR G2 LMAS -000000000
TOTAL 24 HOUR G2 RAI -000000000
TOTAL 24 HOUR G2 LOS -000000000
TOTAL 24 HOUR G2 RAIE -000000000

Appreciate your help....

Regards,
Karthik

westcoaster · August 29th, 2008, 11:54 PM

DTA0203 loop e

A Group 2 error has been detected by the DTI card. Error (e) = 1 to 127
(Decimal). Listed below are various error types (e) and their value in decimal.
Error Type (e);Abbreviation;Decimal Value Loss of CRC4 Multiframe
Alignment;CF;1 64 kb Alarm Indication Signal;AS;2 B6 TS0 non-FAS
(far-end OOS); C3;4 Loss of Frame Alignment;LF;8 Loss of Multiframe
Alignment;LM;16 Alarm Indication Signal;AI;32 B3 TS16 Frame 0 (far-end
OOS);C6;64 To interpret any given value of (e), you must translate (e) to
binary. For example, if (e) = 24 (decimal), the translated binary value = 0 0 1
1 0 0 0. This binary value may now be interpreted as follows: 0 = C6 0 = AI
1 = LM 1 = LF 0 = C3 0 = AS 0 = CF Therefore, the errors are for LF and LM.

Action:

R9

Severity: Info. Critical to Monitor: Yes. SNMP trap: Yes

westcoaster · August 29th, 2008, 11:56 PM

DTA0301 loop

A slip deletion has occurred on PRI2 loop.

Action:

Severity: Minor. Critical to Monitor: No. SNMP trap: Yes

I can't say I have run into these particular errors before. With the frame slips you might want to check the clocking reference

(a basic way is to do a ld 60 and simply stat)

If all your clock sources are in free run you will have an issue. The clock source for the cabinet needs to be locked to a slot.

ld 73
is where you will find clock programming

August 25th, 2008, 01:18 AM	#1 (permalink)
karthisu Join Date: Aug 2008 Posts: 1	PBX PRI Errors Hi, We are having PRIs for 2 different PBX (Both Nortel) from the same Vendor. The problem is we are having these group 2 alarms(AIS), FAP alarms that are coming simultaneously in both the PBXs. We strongly believe that it could be a transport issue. When we contacted the vendor, they have provided the logs for the same time period and there are no alarms in the system. Can any body please help me out in the PRI errors and help in resolving the issue? Logs: DTC001 DCH: 26 RLS NO RESPONSE TIME: 4:17:10 19/08/2008 DTA203 26 3 2 DTA203 26 3 1 DTA301 27 DTA203 26 3 0 DCH: 26 EST CONFIRM TIME: 4:18:18 19/08/2008 DCH: 62 RLS NO RESPONSE TIME: 4:17:10 19/08/2008 DCH: 61 RLS NO RESPONSE TIME: 4:17:10 19/08/2008 DCH: 62 RLS NO RESPONSE TIME: 4:17:16 19/08/2008 DCH: 61 RLS NO RESPONSE TIME: 4:17:16 19/08/2008 DCH: 87 RLS NO RESPONSE TIME: 4:17:21 19/08/2008 DTA203 87 3 2 DTA203 61 3 2 DTA203 87 3 1 DTA203 61 3 1 DTA203 62 3 2 DTA203 62 3 1 DTA203 62 3 0 DTA203 61 3 0 DCH: 62 EST AUTO REC TIME: 4:18:19 19/08/2008 DTA203 87 3 0 DCH: 87 EST CONFIRM TIME: 4:18:19 19/08/2008 DCH: 61 EST AUTO REC TIME: 4:18:19 19/08/2008 LCNT Output PRI2 LOOP 26 MNT NNDC NNC OOS BPV- 000 000 000 000 FAP- 001 000 001 000 SLP- 000 000 000 000 CRC- 000 000 000 000 G2 - 000 000 000 000 MAINT NONEWCALL UNAVAIL SEVERE TOTAL 24HR BPV - 000000000 000000000 000000000 000000000 TOTAL 24HR CRC - 000000000 000000000 000000000 000000000 TOTAL 24HR FAP - 000000001 000000001 000000000 000000000 TOTAL 24HR SLPREP - 000000000 TOTAL 24HR SLPDEL - 000000000 TOTAL 24 HOUR G2 AIS -000000001 TOTAL 24 HOUR G2 LFAS -000000000 TOTAL 24 HOUR G2 LMAS -000000000 TOTAL 24 HOUR G2 RAI -000000000 TOTAL 24 HOUR G2 LOS -000000000 TOTAL 24 HOUR G2 RAIE -000000000 .lcnt 6 PRI2 LOOP 6 MNT NNDC NNC OOS BPV- 000 000 000 000 FAP- 000 000 002 000 SLP- 000 000 000 000 CRC- 000 000 000 000 G2 - 000 000 000 000 MAINT NONEWCALL UNAVAIL SEVERE TOTAL 24HR BPV - 000000000 000000000 000000000 000000000 TOTAL 24HR CRC - 000000000 000000000 000000000 000000000 TOTAL 24HR FAP - 000000000 000000002 000000000 000000000 TOTAL 24HR SLPREP - 000000000 TOTAL 24HR SLPDEL - 000000000 TOTAL 24 HOUR G2 AIS -000000000 TOTAL 24 HOUR G2 LFAS -000000000 TOTAL 24 HOUR G2 LMAS -000000000 TOTAL 24 HOUR G2 RAI -000000000 TOTAL 24 HOUR G2 LOS -000000000 TOTAL 24 HOUR G2 RAIE -000000000 Appreciate your help.... Regards, Karthik

August 29th, 2008, 11:54 PM	#2 (permalink)
westcoaster Join Date: Jul 2008 Posts: 21	Re: PBX PRI Errors DTA0203 loop e A Group 2 error has been detected by the DTI card. Error (e) = 1 to 127 (Decimal). Listed below are various error types (e) and their value in decimal. Error Type (e);Abbreviation;Decimal Value Loss of CRC4 Multiframe Alignment;CF;1 64 kb Alarm Indication Signal;AS;2 B6 TS0 non-FAS (far-end OOS); C3;4 Loss of Frame Alignment;LF;8 Loss of Multiframe Alignment;LM;16 Alarm Indication Signal;AI;32 B3 TS16 Frame 0 (far-end OOS);C6;64 To interpret any given value of (e), you must translate (e) to binary. For example, if (e) = 24 (decimal), the translated binary value = 0 0 1 1 0 0 0. This binary value may now be interpreted as follows: 0 = C6 0 = AI 1 = LM 1 = LF 0 = C3 0 = AS 0 = CF Therefore, the errors are for LF and LM. Action: R9 Severity: Info. Critical to Monitor: Yes. SNMP trap: Yes

August 29th, 2008, 11:56 PM	#3 (permalink)
westcoaster Join Date: Jul 2008 Posts: 21	Re: PBX PRI Errors DTA0301 loop A slip deletion has occurred on PRI2 loop. Action: Severity: Minor. Critical to Monitor: No. SNMP trap: Yes I can't say I have run into these particular errors before. With the frame slips you might want to check the clocking reference (a basic way is to do a ld 60 and simply stat) If all your clock sources are in free run you will have an issue. The clock source for the cabinet needs to be locked to a slot. ld 73 is where you will find clock programming Last edited by westcoaster; August 30th, 2008 at 12:02 AM.

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