User's Manual

DEFINITY ECS Release 8.2 Maintenance for R8.2csi 555-233-119 Issue 1
April 2000
Maintenance Objects
3-749ISDN-TRK (DS1 ISDN Trunk)
3
Service State Audit (#256)
These trunks may be in one of several service states. This test performs a
Service State Audit with the far-end switch.
For interfaces using country protocol 1 (including US), the Service State Audit
executes in all trunk service states. A message is sent to the far-end switch to
ensure that both sides agree on the service state. A PASS for this test simply
means that the message has been successfully sent. Two minutes are allowed
for a reply. If no reply is received within that 2 minute window, the message is
sent out again. If that attempt fails, an error is logged (Error Type 3073) and the
switch then attempts another Service State Audit every 15 minutes. If the trunk
was initially INS (in-service), it is then placed in the MTC/FE (maintenance state,
far-end problem) state. No outgoing calls are placed over this trunk, but
incoming calls are accepted. If an incoming call is presented while in such a
state, a Service State Audit attempt is immediately attempted (that is, the switch
does not wait for the 15-minute cycle, but tries to recover immediately).
Table 3-315. TEST #255 Signaling Link State Check Test
Error
Code
Te s t
Result Description/ Recommendation
ABORT Internal system error
1018 ABORT Maintenance is disable on this trunk.
1. Enable maintenance by entering y in the
Maintenance Tests?
field on page 2 of the change trunk-group form.
1114 ABORT The signaling link is in a transitional state.
1. Retry the command at 1-minute intervals a maximum of 5 times.
4 FAIL There is a problem with the Signaling Channel.
1. If the Packet Control circuit pack is used consult the procedures for
the ISDN-PRI Signaling Group (ISDN-SGR). Further information may
also be obtained by consulting the procedures for the ISDN-PRI
Signaling Channel (ISDN-PLK).
2. If the Packet Interface is used, consult the procedures for PKT-INT.
8 FAIL There is a problem with the DS1 interface circuit pack.
1. Consult the procedures for DS1 interface circuit pack
(DS1-BD/UDS1-BD).
PASS The signaling link hardware is OK.
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