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Cisco ONS 15454 DWDM Installation and Operations Guide, R6.0
September 2005
Chapter 5 Provision Transponder and Muxponder Cards
DLP-G305 Provision the TXP_MR_2.5G and TXPP_MR_2.5G Trunk Port Alarm and TCA Thresholds
Step 10 Enter the appropriate number of occurrences in the Falling Threshold field. 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 seconds subsides and creates only
799 collisions in 15 seconds, 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-second 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 flood of events).
Step 11 Click OK.
Step 12 Return to your originating procedure (NTP).
DLP-G305 Provision the TXP_MR_2.5G and TXPP_MR_2.5G Trunk Port Alarm
and TCA Thresholds
Step 1 In node view, double-click the TXP_MR_2.5G or TXPP_MR_2.5G card where you want to change the
trunk port alarm and TCA settings.
Step 2 Click the Pluggable Port Modules tab. Under Pluggable Ports, record the Rate that is provisioned.
Step 3 Look up the rate in Table 16-54 on page 16-89 and determine whether it is 2R or 3R.
Step 4 Click the Provisioning > Optics Thresholds tabs.
Step 5 Click the 15 Min PM interval radio button and click Refresh.
Step 6 Referring to Table 5-34, provision the trunk port (Port 2) TCA thresholds for RX Power High and RX
Power Low depending on whether the rate is 2R or 3R.
Note Do not modify the Laser Bias parameters.
Step 7 Click Apply.
Purpose This task changes the TXP_MR_2.5G and TXPP_MR_2.5G trunk port
alarm and TCA thresholds.
Tools/Equipment None
Prerequisite Procedures DLP-G46 Log into CTC, page 2-25
Required/As Needed As needed
Onsite/Remote Onsite or remote
Security Level Provisioning or higher
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