Lucent Technologies Definity Systems Little Instruction Book Basic Diagnostics

							DEFINITY System’s Little Instruction Book
for basic diagnostics  555-233-758  Issue 1
April 2000
Alarms and errors 
25 Maintenance reports 
Alarms and errors
This section is for adventurous administrators who are curious 
about how to diagnose and fix common problems. The 
information here will help you understand how to read and 
interpret:
nerror logs
nalarm logs
Maintenance reports
Your DEFINITY system monitors many switch components. 
When a component fails or performs unacceptably, the subsystem 
generates two kinds of reports:
ndetailed reports in the error log
ngeneral reports in the alarm log
The system detects error conditions in its components through 
maintenance objects (MO). MOs are the software modules that 
monitor, test, and report possible fault conditions. 
						

							Alarms and errors 
26 Maintenance reports 
DEFINITY System’s Little Instruction Book
for basic diagnostics  555-233-758  Issue 1
April 2000
Viewing error logs
It is a good idea to run and inspect error logs on a regular basis. 
You can view all active system errors on the error log. You can 
also specify a particular component of your system or a certain 
time period to be reported on the error log. 
To view the error log:
1. Type 
display errors and press RETU RN.
The Error Report screen appears.
Error Report screen
2. To see all current errors, press RETU RN
OR
Indicate the errors that you want to see by entering the 
information requested in each field. See the field 
descriptions listed in the following section. 
3. Press 
EN TER to view the report.
                                  ERROR REPORT
      The following options control which errors will be displayed.
         ERROR TYPES
            Error Type:               Error List: active-alarms
         REPORT PERIOD
            Interval: a      From:   /  /  :   To:   /  /  :
         EQUIPMENT TYPE ( Choose only one, if any, of the following )
                             Cabinet:
                        Port Network:
                        Board Number:
                                Port:
                            Category:
                           Extension:
              Trunk ( group/member ):   /   
						

							DEFINITY System’s Little Instruction Book
for basic diagnostics  555-233-758  Issue 1
April 2000
Alarms and errors 
27 Maintenance reports 
Error report field descriptions
Field What to enter
Error Typeerror type
Error Listactive-alarms, errors, or cleared-errors
Intervalh(our), d(ay), w(eek), m(onth), a(ll)
From/Totime interval by date and time
Cabinetcabinet number (1 - 44)
Port Networkport network number (1 - 44)
Board Number5-character board number in UUCSS format: 
UU = cabinet (1-44), C = carrier (A-E), SS = slot (0-20)
Port7-character port address in UUCSSss format:
UU = cabinet (1-44), C = carrier (A-E), SS = slot (0-20), ss = circuit 
Categorycategory name (choose from the list below):
adm-conn announce bri/asai cdr data-mod
detector dup-spe environ exp-intf ext-dev
generatr inads-link infc maint mass-st
mbus memory misc mmi mnt-test
modem mssnet pkt pms/jrnl pnc
pncmaint pnc-peer procr quick-st s-syn
spe stabd stacrk stations sys-link
sys-prnt tape tdm tone trkbd
trkcrk trunks vc vsp wideband
wireless
Extensionassigned extension, or blank
Trunk Groupgroup number between 1-666
  Membergroup member between 1-255, or blank 
						

							Alarms and errors 
28 Maintenance reports 
DEFINITY System’s Little Instruction Book
for basic diagnostics  555-233-758  Issue 1
April 2000
Hardware Error Report
Use the print command to print the report. Make special note of 
the information in these fields:
nThe Port field contains information in several formats:
ncircuit pack address (UUCSS)
nport address (UUCSSss)
n2-digit signaling number
nadministered port network number
nMtce Name (the name of the Maintenance Object)
nAlt Name (the extension with the error)
In this example, Attd1 is the digital port with the errors.
nError Type (represents the error condition category)
nAux Data (represents a detail of the Error Type)
nFirst Occur (indicates the date/time of the first occurrence) 
nErr Cnt (lists how many occurrences since the first one)
                     HARDWARE ERROR REPORT - ACTIVE ALARMS         
Port      Mtce     Alt     Err   Aux     First       Last      Err Err Rt/ Al Ac
          Name     Name    Type  Data    Occur       Occur     Cnt Rt  Hr  St  
01AXX1    PI-LINK          257   25    05/02/08:07 05/04/08:38 255 5   13  a   n
01AXX1    PI-LINK          2049  1     05/02/12:03 05/02/12:03 1   0   0   a   n
01AXX1    PI-LINK          257   25    05/02/18:48 05/03/13:57 2   0   0   a   n
01A0101   DIG-LINE Attd1   1537  40968 05/02/12:29 05/02/12:29 1   0   0   a   n
01A0101   DIG-LINE Attd1   513   0     05/02/12:29 05/02/12:29 3   0   0   a   n 
						

							DEFINITY System’s Little Instruction Book
for basic diagnostics  555-233-758  Issue 1
April 2000
Alarms and errors 
29 Maintenance reports 
Interpreting the error log
The Hardware Error Report above shows five error entries. The 
switch detected an unplugged digital phone. Here is how to 
interpret the report:
nPI-LINK is the MO monitoring the processor interface 
links to digital equipment, including adjuncts. You can see 
that over 2 days (May 2 to May 4) it incurred 255 type-257 
errors, 1 type-2049 error, and 2 type-1 errors. 
nThe DIG-LINE errors indicate that the system can’t find 
the phone administered to port 01A0101. According to the 
switch, that is supposed to be attendant 1 (Alt Name).
Notice that the error type and aux data fields for both MOs 
contain many different numbers. The numbers are software codes 
that represent a specific error condition.
Clearing the error
If an important component in your system fails, the software 
records that “event” with code numbers in the error or alarm log.
To interpret the error codes and clear the error:
1. Look up the MO (for example, DIG-LINE or PI-LINK) in 
the DEFINITY ECS Maintenance books for your switch.
2. Find the error type in the Hardware Error Type table for 
that MO. 
						

							Alarms and errors 
30 Maintenance reports 
DEFINITY System’s Little Instruction Book
for basic diagnostics  555-233-758  Issue 1
April 2000
3. Find the note associated with that error type for an 
explanation of the conditions that generated the error.
4. Perform the recommended procedure to clear the error.
The recommended procedure may require you to test 
alarmed components. Be sure to have test permissions 
enabled. 
If any tests fail or abort, you will get an error code for the 
test.
5. Look up the test error code by MO in your DEFINITY ECS 
Maintenance books. 
6. Find the numbered test listed in the test results.
7. Look for the correct combination of error code and test 
result in the numbered-test tables. 
						

							DEFINITY System’s Little Instruction Book
for basic diagnostics  555-233-758  Issue 1
April 2000
Alarms and errors 
31 Maintenance reports 
Alarm logs
Alarms are classified as major, minor, or warning, depending the 
degree of severity and the effect on the system.
Alarms are further classified as:
non-board problems originate within the circuitry of the 
alarmed circuit pack
noff-board problems originate in a process or component 
that is external to the circuit pack 
warning level and descriptionreported to 
INADS?reported
to console? take this action
major
Critical service degradationYY
(occurs after 4 
attempts to 
call INADS)Immediate 
attention
minor
Some service degradation, but system 
is operable, usually limited to a few 
trunks or stations or a single feature.YY 
(occurs after 4 
attempts to 
call INADS)Check to see 
what service is 
affected
warning
Failure that causes no significant 
service degradation
Note: DS1 off board faults (error type 
138) generate warning alarms only, 
indicating a customer network 
problem. In this case, warning alarms 
can cause critical service degradation.N
(INADS can 
receive 
some 
downgraded 
warning 
alarms)N Monitor the 
situation; check 
for service or 
equipment 
interruption or 
failure outside 
the switch. 
						

							Alarms and errors 
32 Maintenance reports 
DEFINITY System’s Little Instruction Book
for basic diagnostics  555-233-758  Issue 1
April 2000
Reading the alarm log
Let’s look at an alarm log that results from an unplugged digital 
phone. 
To the view the alarm log:
1. Type 
display alarms and press RETU RN.
The Alarm Report screen appears.
Alarm Report screen
2. Indicate which alarms you want to view by entering y and 
EN TER after each alarm type.
Tip:
Unless you can restrict the trouble to a particular time 
period, press 
EN TER to see all active alarms. 
If you choose n
 for major alarms and y
 for minor and 
warning alarms, you will not see the high-level 
information that you may need to determine what is wrong 
with your system.
                                  ALARM REPORT
      The following options control which alarms will be displayed.
        ALARM TYPES
                   Active? y    Resolved? n
                    Major? y       Minor? y      Warning? y
        REPORT PERIOD
                 Interval: m      From:   /  /  :      To:   /  /  :  
        EQUIPMENT TYPE ( Choose only one, if any, of the following )
                             Cabinet:
                        Port Network:
                        Board Number:
                                Port:
                            Category:
                           Extension:
              Trunk ( group/member ):   / 
						

							DEFINITY System’s Little Instruction Book
for basic diagnostics  555-233-758  Issue 1
April 2000
Alarms and errors 
33 Maintenance reports 
3. Press EN TER to view the alarm report.
4. The alarm report screen appears.
Alarm Report screen
Interpreting alarm logs
The Alarm Report lists the major alarms first, followed by the 
minor and warning alarms.
The alarm log in the example above shows:
na processor interface link (PI-LINK) at address 01AXX1 
has alarmed three times on May 2 with off-board 
(On Brd? = n) warnings.
nthe same port (01A0101) on a digital line (DIG-LINE) 
circuit pack has alarmed twice on May 2 in response to 
two different error counters (refer to the error log 
example).
                                 ALARM REPORT
Port       Maintenance On   Alt     Alarm   Svc    Ack?  Date        Date
           Name        Brd? Name    Type    State  1 2   Alarmed     Resolved
01AXX1     PI-LINK     n            WARNING              05/02/09:48 00/00/00:00
01AXX1     PI-LINK     n            WARNING              05/02/09:48 00/00/00:00
01A0101    DIG-LINE    n    Attd1   WARNING RDY          05/02/12:29 00/00/00:00
01A0101    DIG-LINE    n    Attd1   WARNING RDY          05/02/12:29 00/00/00:00
01AXX1     PI-LINK     n            WARNING              05/02/18:49 00/00/00:00 
						

							Alarms and errors 
34 Understanding common error types 
DEFINITY System’s Little Instruction Book
for basic diagnostics  555-233-758  Issue 1
April 2000
Clearing alarm logs
To clear an alarm log:
1. Investigate or fix the first major alarm in the log.
2. See if other alarms are retired by fixing the most severe 
problem first.
Assigning alarm buttons
You can administer feature button lamps on any phone to act as 
alarm indicators, similar to the alarm lamp on the attendant 
console. The following table describes the meaning of the green 
light associated with an alarm button.
Press the alarm button to turn off the light. The light flashes again 
if the alarm is still active when the next maintenance routine runs.
Understanding common error types
This section discusses frequently-encountered error types, and 
explains why they occur.
status of light meaning
flashing green an alarm occurs
steady green INADS notified and acknowledges alarm
light goes off an alarm is resolved