DEFINITY Enterprise Communications Server Release 7
Maintenance for R7r
555-230-126 Issue 4
June 1999
Maintenance Object Repair Procedures
9-348BRI-SET, ASAI-ADJ, BRI-DAT
9
BRI Remote Loop Back Test (#627)
This test checks the integrity of a circuit switched B-channel connec tion between
the switch and the endp oint.
In this test, the endpoint is p ut in the ‘‘maintenance busy’’ state to p revent the
switch from issuing call s to the endpoint during the test. An applic ation message
containing a loop b ack activate request for the appropriate B-c hannel is sent to
the endpoint. The endpoint responds with a loop b ack activated resp onse.
Maintenance then sends d ata to the endpoint over the B-c hannel under test.
Since the B-channel is looped back at the endp oint, maintenance should recei ve
the data that it sent. If no data is detected , the test fails. An applic ation message
containing a loop b ack deactivate req uest is then sent to the endpoi nt to
terminate the remote loop bac k test. The endpoint responds with an MIM
message containing a loop back deac tivate response. Maintenance then
releases the endpoint so that it is availab le to terminate calls.
This test is not executed for ASAI adjuncts b ecause adjuncts d o not support
MIMs upon which this test is b ased.
1113 FAIL The signaling link is not ‘‘bound’’ to the adjunct or endp oint. 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 disconnec ted 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 refer to the
associated procedures for this command contained in the BRI-PORT
(ISDN-BRI Port) Maintenance documentation.
PASS The signaling link is connected at Layer 2 and ‘‘bound’’ to the BRI endpoint
or ASAI adjunct.
Table 9-151. TEST #626 Signaling Link Status Test — Continued
Error
Code Test
Result Description/ Recommendation
Continued on next page