Avaya S8700 - Page 1092

Maintenance-Object Repair Procedures
555-233-143
8-370 Issue 1 May 2002
BRI Remote Loop Back Test (#627)
This test checks the integrity of a circuit-switched B-channel connection between
the switch and the endpoint.
In this test, the endpoint is put in the “maintenance busy” state to prevent the
switch from issuing calls to the endpoint during the test. An application message
containing a loop back activate request for the appropriate B channel is sent to the
endpoint. The endpoint responds with a loop back activated response.
Maintenance then sends data to the endpoint over the B channel under test.
Since the B channel is looped back at the endpoint, maintenance should receive
the data that it sent. If no data is detected, the test fails. An application message
containing a loop-back deactivate request is then sent to the endpoint to
discontinue the remote loop-back test. The endpoint responds with an MIM
message containing a loop-back deactivate response. Maintenance then
releases the endpoint so that it is available to terminate calls.
This test is not executed for ASAI adjuncts because adjuncts do not support MIMs
upon which this test is based.
1113 FAIL The signaling link is not “bound” to the adjunct or endpoint. For BRI endpoints
supporting MIM initialization, this error indicates that the endpoint has not been
bound to a signaling link (that is, SPID initialization has not been completed).
Since the signaling link associated with the endpoint is not identified until SPID
initialization completes, this error does not imply that the signaling link is
connected or disconnected at Layer 2 nor does it provide the status of TEI
assignment for the endpoint. For ASAI adjuncts and BRI endpoints not
supporting MIM initialization, this error indicates that the link is disconnected at
Layer 2. Since the signaling link associated with the endpoint has been
identified via administration, the link is only “unbound” from the endpoint when
it is disconnected.
1. Execute the status bri-port PCSSpp command and see the associated
procedures for this command contained in ‘‘BRI-PORT (ISDN-BRI Port),
ABRI-PORT (ASAI ISDN-BRI Port)’’.
PASS The signaling link is connected at Layer 2 and “bound” to the BRI endpoint or
ASAI adjunct.
Table 8-155. Test #626 Signaling Link Status Test — Continued
Error
Code
Tes t
Result Description / Recommendation
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