Table 1-9 Path Alarm Hierarchy; Table 1-10 Facility Alarm Hierarchy; Table 1-11 Near-End Alarm Hierarchy - Cisco ONS 15310-CL Troubleshooting Manual

1.5.4 Alarm Hierarchy
Table 1-9
Priority
—
Lowest
Facility (port) alarms also follow a hierarchy; lower-ranking alarms are closed by higher-ranking alarms.
The facility alarm hierarchy used in the systems is shown in
Table 1-10
Priority
Highest
—
—
—
—
—
—
—
—
—
—
—
—
Lowest
Near-end failures and far-end failures follow different hierarchies. Near-end failures stand according to
whether they are for the entire signal (LOS, loss of frame alignment [LOF]), facility (AIS-L), path
(AIS-P, etc.) or VT (AIS-V, etc.). The full hierarchy for near-end failures is shown in
table is taken from Telcordia GR-253-CORE.
Table 1-11
Priority
Highest
—
—
—
—
—
—
—
Cisco ONS 15310-CL and Cisco ONS 15310-MA Troubleshooting Guide, R7.0
1-16
Path Alarm Hierarchy
Condition Type
UNEQ-P
TIM-P
Facility Alarm Hierarchy
Condition Type
LOS
LOF
AIS-L
SF-L
SD-L
RFI-L
TIM-S
AIS-P
LOP-P
SF-P
SD-P
UNEQ-P
TIM-P
PLM-P
Near-End Alarm Hierarchy
Condition Type
LOS
LOF
AIS-L
1
AIS-P
2
LOP-P
UNEQ-P
TIM-P
PLM-P
Chapter 1 Alarm Troubleshooting
Table 1-10.
Table 1-11. This
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