Avaya DEFINITY Server CSI Maintenance Manual page 1498

Maintenance Objects
b. Error Type 257: CLAN port detected overrun or underrun condition that
may indicate a hardware problem.
1. Test for hardware problem (test port UUCSSpp long).
2. Refer to SCOTCH Synchronous Looparound Test (#1275) repair
3. Clear the alarm (test port UUCSSpp long clear).
c. Error Type 513: PPP link lost end-to-end connectivity.
1. Test for hardware problem (test port UUCSSpp long).
2. Run TDM Looparound Test (#1285) and refer to repair procedures if
d. Error Type 769: Port received an invalid frame, which
1. Test the port (test port UUCSSpp long).
2. Refer to TDM Port Looparound Test (#1285) to verify repair.
3. Clear the alarm (test port UUCSSpp long clear).
e. Error Type 1281: System software received an indication that the far-end
has requested a disconnect of a session on this link. This is a log-only
error.
f. Error Type 1537, 1538: Some or all port sessions (sockets) are down.
If the switch indicates that:
Some of the sessions are down
All of the sessions are down
1. Test the port (test port UUCSSpp short).
2. Refer to Session Status Test (#1286) repair procedure to verify
1498
Issue 5 October 2002
procedures to verify repair.
there is a hardware problem.
If there is no hardware problem, the switch tries to re-establish PPP
link.
is greater than the maximum length
contains CRC errors
violates the link level protocol.
repair.
Then it:
Raises off-board WARNING
Raises off-board MINOR alarm