Demand test descriptions and error codes - Avaya Support

Packet Interface Maintenance Looparound Test (#886)
Table 459: Packet Interface Private Looparound Test (#885) 3 of 3
Packet Interface Maintenance Looparound Test (#886)
This test checks whether an IPSI circuit pack’s Packet Interface module correctly sends and
receives data. It establishes a LAPD link from the IPSI’s Packet Interface module back to the
same Packet Interface module, and transmits and receives test data over that testing link. While
timing signals from the packet bus are used for the data transfer, the data itself is looped around
on the circuit pack at the interface to the packet bus and does not get sent over the packet bus.
Note: In
Error
Code
Test
Result
PASS All of the private looparound tests passed. The Packet Interface on the
IPSI circuit pack is functioning properly. If the system is still unable to
place calls, then:
1. Enter display errors to display the error log, and check for
errors on the PKT-BUS (Packet Bus) and M/T-BD (Maintenance/
Test Circuit Pack) Clear those errors first.
2. Check all other circuit packs connected to the packet bus in the
same cabinet. Packet bus failures are likely to be caused by a
faulty circuit pack connected to the backplane or bent pins on the
back plane. See PKT-BUS (Packet Bus) for repair procedures.
NO
BOARD
Description / Recommendation
The IPSI circuit pack’s Packet Interface module is assigned, but is not
detected as physically present.
1. If the IPSI circuit pack is present, replace it.
2. If an IPSI circuit pack is not present, insert a TN2312AP IPSI circuit
pack in the assigned slot, and rerun the test.
Note:
a high- or critical-reliability system (duplicated IPSIs), this test does not run on
a standby IPSI’s Packet Interface module. However, a failure of the Maintenance
Looparound test may cause an IPSI interchange that reports an alarm
(associated with the looparound failure, Error Code 769) against the standby
IPSI’s Packet Interface module. If so, and if every other Packet Interface test in
test packet-interface location long sequence passes, enter
set ipserver-interface to force the standby IPSI to go active. Then, enter
test packet-interface location to run the Maintenance Looparound
test, and verify that the problem cleared.
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Issue 5 May 2009 1529