Service State Audit (#256) - Avaya G350 Maintenance Manual

Service State Audit (#256)

As noted in the general description for DS1 ISDN Trunk, 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 the 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 Type 3073 will be logged and the switch will attempt another Service State Audit
every 15 minutes. If the trunk was initially in-service, it is placed in the maintenance/far-end state. No
outgoing calls will be placed over this trunk, but incoming calls will be accepted. If an incoming call is
presented with the trunk in such a state, a Service State Audit is immediately be attempted (the switch
does not wait for the 15-minute cycle, but tries to recover immediately).
For interfaces not using country protocol 1, the Service State Audit executes only if the trunk is in the
out-of-service/far-end state. A message is sent to the far-end switch to attempt to bring the trunk back into
the in-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 two minute window, the message is
sent out again. If again no response is received within two minutes, the trunk remains in the out-of-
service/far-end state. The switch will attempt another Service State Audit after an hour has passed.
To investigate the service state of the DS1 ISDN Trunk, use the status trunk group#/member#
command.
Table 93: TEST #256 Service State Audit Test 1 of 2
Error Test
Code Result
1000 ABORT
1018 ABORT
1113 ABORT
1114 ABORT
1116 ABORT
1117 ABORT
Maintenance of the Avaya G350 Media Gateway
June 2004
Avaya Communication Manager controlled maintenance
Description/ Recommendation
Resources required to run this test were not available. The port may be on a
valid call or initializing. Use status station or status trunk to
determine when the trunk is available for testing. Check the results of Test
#255.
Maintenance is disabled on this trunk.
Enable maintenance by entering "y" in the "Maintenance Tests?" field on
page 2 of the change trunk-group form.
The signaling link has failed, so the system cannot send any messages on
behalf of this trunk.
Check the results of Test #255 and consult procedures for ISDN-SGR
(ISDN-PRI Signaling Group) in this chapter.
The signaling link is in a transitional state.
Retry the command at 1-minute intervals for a maximum of 5 times.
The trunk is not in the out-of-service/far-end state, which is required to run
this test on systems using a country protocol other than 1.
A service state audit message is outstanding.
Wait 2 minutes and then try again.
ISDN-TRK (DS1 ISDN Trunk)
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