Maintenance-Object Repair Procedures
555-233-143
8-978 Issue 1 May 2002
Notes:
a. This switch sent a message to the far-end switch or terminal adapter, and
the far end did not respond in the allotted time. Possible causes include
link failure and congestion or outage at the far end. The Aux Data field
contains layer-3 protocol information used by internal counters.
If no other symptoms are present, no action is required. If layer-3
communication is down, there should be indications in the form of alarms
and errors for link components. Check for other errors against ISDN-SGR,
ISDN-TRK, and other hardware components on the link.
There is no test to clear these errors. The error counter is decremented by
1 every 15 minutes.
b. This error indicates that the primary signaling channel connection has been
lost for more than 90 seconds. If a secondary signaling channel does not
exist or is not in service, the associated B channels will be placed in the
ISDN Maintenance/Far-End state. The B channels will not be usable for
outgoing calls, although incoming calls will still be accepted. The switch
will automatically attempt to recover the signaling link. Pay particular
attention to the results of Test #636 (Primary Signaling Link Hardware
Check) in the test sequence. When the link does recover, the B channels
will be negotiated back to the In-Service state and their alarms will be
retired.
When this error occurs, the state of the Signaling Group is changed to out
of service (verify using the status sig-group command).
3585 (g) Port
number
None
3842 –
3942(h)
Port
number
None
1. Run the short test sequence first. If every test passes, run the long test sequence. Refer to each appropriate
test’s description, and follow its recommended procedures.
Table 8-386. ISDN-PRI Signaling Group Error Log Entries — Continued
Error
Type
Aux
Data Associated Test
Alarm
Level
On/Off
Board Test to Clear Value
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