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Cisco ONS 15327 User Documentation, R3.3
June 2002
Chapter 9 Ethernet Operation
Remote Monitoring Specification Alarm Thresholds
Step 5
From the Port menu, choose the port on the Ethernet card.
Step 6
From the Variable menu, choose the variable that you want to set.
lists and defines the Ethernet
Threshold Variables available in this field.
Step 7
From Alarm Type menu, indicate whether the event will be triggered by the rising threshold, falling
threshold, or both the rising and falling thresholds.
Step 8
From the Sample Type pull-down menu,
choose either
Relative
or
Absolute
.
Relative
restricts the
threshold to use the number of occurrences in the user-set sample period.
Absolute
sets the threshold to
use the total number of occurrences, regardless of any time period.
Step 9
Type in an appropriate number of seconds for the Sample Period.
Step 10
Type in the appropriate number of occurrences for the Rising Threshold.
Note
To raise a rising type of alarm, the measured value must move from below the falling threshold
to above the rising threshold. For example, if a network is running below a falling threshold of
400 collisions every 15 seconds and a problem causes 1001 collisions in 15 seconds, these
occurrences raise an alarm.
Step 11
Type in the appropriate number of occurrences for the Falling Threshold. In most cases a falling
threshold is set lower than the rising threshold.
A falling threshold is the counterpart to a rising threshold. When the number of occurrences is above the
rising threshold and then drops below a falling threshold, it resets the rising threshold. For example,
when the network problem that caused 1001 collisions in 15 minutes subsides and creates only 799
collisions in 15 minutes, occurrences fall below a falling threshold of 800 collisions. This resets the
rising threshold so that if network collisions again spike over a 1000 per 15 minute period, an event again
triggers when the rising threshold is crossed. An event is triggered only the first time a rising threshold
is exceeded. (Otherwise a single network problem might cause a rising threshold to be exceeded multiple
times and cause a large number of events.)
Step 12
Click
OK
to complete the procedure.
Содержание ONS 15327
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Страница 44: ...Procedures xlii Cisco ONS 15454 Installation and Operations Guide R3 2 June 2002 ...
Страница 82: ...1 32 Cisco ONS 15327 User Documentation R3 3 June 2002 Chapter 1 Hardware Installation Hardware Specifications ...
Страница 166: ...4 22 Cisco ONS 15327 User Documentation R3 3 June 2002 Chapter 4 IP Networking ONS 15327 Routing Table ...
Страница 254: ...7 22 Cisco ONS 15327 User Documentation R3 3 June 2002 Chapter 7 Card Provisioning Using Virtual Wires ...
Страница 408: ...13 26 Cisco ONS 15327 User Documentation R3 3 June 2002 Chapter 13 Card Reference E10 100 4 Card ...
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