C-3
Cisco ONS 15600 SDH Reference Manual, Release 9.0
78-18400-01
Appendix C Network Element Defaults
C.2.2 Threshold Defaults
C.2.2 Threshold Defaults
Threshold default settings define the default cumulative values (thresholds) beyond which a threshold
crossing alert (TCA) will be raised, making it possible to monitor the network and detect errors early.
Card threshold default settings are provided as follows:
•
PM thresholds—(STM-N, STM64-4-DWDM, and ASAP cards) Can be expressed in counts or
seconds; includes line and SDH thresholds.
•
Physical Layer thresholds—(STM-N, STM64-4-DWDM, and ASAP cards) Expressed in
percentages; includes optics thresholds.
Threshold defaults are defined for near end and/or far end, at 15-minute and one-day intervals.
Thresholds are further broken down by type, such as Multiplex Section, Regeneration Section, VC3, or
VC4 for performance monitoring (PM) thresholds, and TCA (warning) or Alarm for physical thresholds.
PM threshold types define the layer to which the threshold applies. Physical threshold types define the
level of response expected when the threshold is crossed.
Note
For full descriptions of the thresholds you can set for each card, see
Note
For additional information regarding PM parameter threshold defaults as defined by Telcordia
specifications, refer to Telcordia GR-820-CORE and GR-253-CORE.
C.2.3 Defaults by Card
In the tables that follow, card defaults are defined by the default name, its factory-configured value, and
the domain of allowable values that you can assign to it.
Note
Some default values, such as certain thresholds, are interdependent. Before changing a value, review the
domain for that default and any other related defaults for potential dependencies.
C.2.3.1 STM64-4 Card Default Settings
lists the OC192/STM64 SR/SH 4 Port 1310 and OC192/STM64 LR/LH 4 Port 1550 card
default settings.
Table C-1
STM64-4 Card Default Settings
Default Name
Default Value
Default Domain
STM64_4.config.line.AINSSoakTime
08:00 (hours:mins)
00:00, 00:15, 00:30 .. 48:00
STM64_4.config.line.AlsMode
Disabled
Disabled, Auto Restart, Manual
Restart, Manual Restart for Test
STM64_4.config.line.AlsRecoveryPulseDuration
2.0 (seconds)
2.0, 2.1, 2.2 .. 100.0 when AlsMode
Disabled, Auto Restart, Manual
Restart; 80.0, 80.1, 80.2 .. 100.0 when
AlsMode Manual Restart for Test