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Communication Manager Maintenance-Object Repair Procedures
608 Maintenance Procedures for Avaya Communication Manager 3.0, Media Gateways and Servers
Remote Layer 3 Query (#1291)
This test queries the far-end switch or terminal adapter to determine whether the signaling
connection is functioning properly at Layer 3. It selects a B channel in the in-service or
maintenance service state and sends an ISDN layer-3 SERVice message, which requires a
response from the far end (similar to performing Test #256 on an ISDN trunk). The test is not
performed if there are no B channels in an appropriate ISDN service state (for example, when
none are administered or they are all out of service).
Note:
Note: The service state can be displayed by using the status trunk grp#/mem# or
status pri-endpoint command.
As is the case with Test #256 for an ISDN trunk, a PASS only indicates that a message was
composed and sent to the far-end switch or terminal adapter. The ISDN PRI Specification
allows up to 2 minutes for a response. Check the Error Log for ATM-SGRP errors of type 2305
for evidence of a Remote Layer 3 Query failure.
Test #636 checks the health of the D channels and ATM Interface circuit packs. This test goes
one step further by checking the communication path from the processor, through the TDM/
packet bus and ATM Interface circuit pack, and on to the far-end switch or terminal adapter. A
special ISDN message is sent to the far-end switch or terminal adapter that must respond within
a specified amount of time. This test is designed to ensure that the communication path
between the switch and the far end is up and operational, and that the two endpoints can
properly exchange ISDN control messages.
Table 201: Test #1291 Remote Layer 3 Query
Error
Code
Test
Result
Description / Recommendation
1006 ABRT There are no associated B channels in an ISDN “in-service” or
“maintenance” service state. This is a NORMAL ABORT.
1. Administer or release an ISDN trunk or PRI endpoint before retrying
the test. For an ATM trunk, use status trunk grp#/mem# to verify
the ISDN trunk state.
2. Retry this test when at least one B channel is in the “in-service” or
“maintenance” states.
1113 ABRT The signaling channel is down. Therefore, no messages can be sent to the
far-end switch or terminal adapter.
1. Examine the results of Test #636, and follow recommendations
provided there.
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