Avaya S8700 Maintenance Manual page 1545

For multi-connect configurations

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EXP-PN (Expansion Port Network)

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

Table 8-312. Expansion Port Network (EXP-PN) Error Log Entries

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

Associated Test

Test to Clear Value

Continued on next page

Issue 1 May 2002

Troubleshooting