PPP-PT (Control LAN Packet/Port)
Issue 4 May 2002
10-1357555-233-123
SCOTCH Synchronous Looparound Test (#1275)
NOTE:
This test is destructive.
This test verifies the circuit in the datapath of a ppp call. This test fails if the data
transmitted on the port does not match the data received in the looparound mode.
Failure of this test indicates a port hardware fault on the circuit pack.
This test aborts if calls are using the port, or if the PPP link associated with the
port is connected. To avoid this, first enter busyout data-module extension, or
busyout port UUCSSpp, or busyout link link#, which will cause all calls and
links using the port to be torn down.
2100 ABORT Could not allocate the necessary system resources to run test.
1. Retry the command at 1-minute intervals, up to 5 times.
2. Escalate if the problem persists.
FAIL Received tones do not match transmitted tones.
1. Retry command at 1-minute intervals, up to 3 times.
2. If the problem persists, refer to TDM-BUS, Tone Generator,
and Tone Receiver repair procedures.
3. If the problem persists, reset the board (busyout board
UUCSS, reset board UUCSS, and release board UUCSS).
Repeat the test.
4. If the problem persists, replace the circuit pack.
PASS Port connections across the TDM bus function properly.
Table 10-500. TEST #1285 TDM Looparound Test — Continued
Error
Code
Tes t
Result Description/Recommendation
Continued on next page
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