EXP-PN (Expansion Port Network)
Issue 1 May 2002
8-823
555-233-143
Connectivity Alarming
When an PN is out of service, a MAJOR EXP-PN alarm is raised against that PN.
An PN can only be alarmed if it is out of service and the fiber between the PN and
PN is up. If the fiber from the PN to the Center Stage Switch is down (by
removing it from administration, for example), every PN is lost but not alarmed,
since they are not the cause of the problem. If, however, connectivity is restored
and the PN fails to recover, the PN is alarmed.
For ATM, an PN can only be alarmed if it is out of service and the connections to
the PN, ATM switch, and PN are up. If the connection from the PN to the ATM
switch is down (by removing it from administration, for example), every PN is lost
but not alarmed, since they are not the cause of the problem. As for CSS, if
connectivity is restored and the PN fails to recover, the PN is alarmed.
Error Log Entries and Test to Clear Values
Notes:
a. This is an informational entry only, indicating that an PN Reset Level 1 (PN
Warm Restart) has been executed on this PN.
b. This is an informational entry only, indicating that an PN Reset Level 2 (PN
Cold Restart) has been executed on this PN. This does not include
restarts done at system initialization time.
c. Indicates that an PN is not in service when it is expected to be. The value
specified in the port field of the error log, is the PN number of the affected
PN. When this condition occurs, examine every system link error and
EXP-INTF or ATM-PNC error to aid in resolving the alarm (examples of
system link errors are errors logged against PKT-INTF, EXP-INTF, SNI-BD,
FIBER-LK, and PKT-BUS and for ATM, PKT-BUS, ATM-EI, ATM-NTWK).
Also check that all fiber connectivity matches that have been administered
for the system. This alarm and error is resolved and removed from the logs
only when the PN comes back into service, or after fiber administration is
changed to remove a fiber such that there is no connectivity from the PN to
this PN.
Table 8-312.
Expansion Port Network (EXP-PN) Error Log Entries
Error
Type
Aux
Data
Associated Test
Alarm
Level
On/Off
Board
Test to Clear Value
1 (a)
0
None
None
257 (b)
0
None
None
513 (c)
0
None
MAJOR
OFF
769 (d)
0
None
MAJOR
OFF
Continued on next page
Summary of Contents for S8700 Series
Page 50: ...Maintenance Architecture 555 233 143 1 26 Issue 1 May 2002 ...
Page 74: ...Initialization and Recovery 555 233 143 3 12 Issue 1 May 2002 ...
Page 186: ...Alarms Errors and Troubleshooting 555 233 143 4 112 Issue 1 May 2002 ...
Page 232: ...Additional Maintenance Procedures 555 233 143 5 46 Issue 1 May 2002 ...
Page 635: ...status psa Issue 1 May 2002 7 379 555 233 143 status psa See status tti on page 7 406 ...
Page 722: ...Maintenance Commands 555 233 143 7 466 Issue 1 May 2002 ...