ADC Release 3.1 User Manual page 470

1152700 Issue 1 February 2001 Section 2 Operations and Maintenance
ALARM SEVERITY
MESSAGE
Discard Information
Header al Alert
Error
Count
Violation
Threshold
Crossing
Alert
DiscardHec
VioThresho
ldExceeded
EIM Information
Removed al Alert
Egress Information
Congestion al Alert
High
Threshold
Crossing
Alert
EgressCong
estHighTca
Endpoint Minor
Alarm
Indication
Signal
EndpointAI
S
Endpoint Minor
Loss of
Clock
EndpointL
OC
Endpoint Minor
Remote
Defect
Indication
EndpointR
DI
Page 2-426
© 2000, ADC Telecommunications, Inc.
Table 4-1. Alarm Identifications, continued
IMPACT DESCRIPTION
Service Cells discarded due to
Degradation Header Error Checksum
have crossed the user
definable threshold setting
causing a Threshold
crossing alert (TCA).
Service EIM has physically been
Degradation pulled from the backplane.
Service Cells congested on the
Degradation egress of reported port
have crossed a user
definable threshold level.
Service Endpoint of reported
Affecting connection is receiving AIS
code due to a failure
somewhere in the
connection path.
Service No ATM cell traffic is
Affecting present at connection
endpoint.
Service Endpoint remote defect
Affecting indication. AIS is detected
by the remote endpoint
causing an RDI.
TAP-100
Page 7 of 23
SUGGESTED COURSE OF ACTION
Could be caused by a port
failure at any ATM interface.
Verify the port is online, check
configuration, look for
indications of high BER (Bit
Error Rate), increase threshold
settings if necessary, use line
loopback to troubleshoot path
through port.
Install EIM card as needed.
Review traffic contracts and
modify threshold level if
needed. Monitor for future
congestion alarms. Cells
tagged for discard become
susceptible to termination.
Check connection originating
point by retrieving connection
status and using OAM
loopback from test equipment.
Check input at the Electrical
Interface Module (EIM) and
the facility status on the
Access Interface Card (AIC).
Perform ATM loopback to
verify path continuity through
port.
Check the AIC and EIM that
feed the traffic for the
connection.
(continued)