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Configuring DDM (Only for Certain Devices) DDM Configuration
User Guide 143
â– Configuring Voltage Threshold
Follow these steps to configure the threshold of the DDM voltage on the specified SFP
port.
Step 1 configure
Enter global configuration mode.
Step 2 interface { fastEthernet
port
| range fastEthernet
port-list
|
gigabitEthernet
port
| range
gigabitEthernet
port-list
| ten-gigabitEthernet
port
| range ten-gigabitEthernet
port-list
}
Enter interface configuration mode.
Step 3 ddm voltage_threshold { high_alarm | high_warning | low_alarm | low_warning }
value
high_alarm: Specify the high threshold for the alarm. When the operating parameter rises
above this value, action associated with the alarm will be taken.
high_warning: Specify the high threshold for the warning. When the operating parameter
rises above this value, action associated with the warning will be taken.
low_alarm: Specify the low threshold for the alarm. When the operating parameter falls
below this value, action associated with the alarm will be taken.
low_warning: Specify the low threshold for the warning. When the operating parameter falls
below this value, action associated with the warning will be taken.
value
: Enter the threshold value in V. The valid values are from 0 to 6.5535.
Step 4 show ddm configuration voltage
Display the DDM voltage threshold of the SFP ports.
Step 5 end
Return to Privileged EXEC Mode.
Step 6 copy running-config startup-config
Save the settings in the configuration file.
The following example shows how to set SFP port 1/0/27’s high alarm threshold voltage as
5 V.
Switch#configure
Switch(config)#interface gigabitEthernet 1/0/27
Switch(config-if)#ddm vlotage_threshold high_alarm 5
Switch(config-if)#show ddm configuration voltage
Voltage Threshold(V) :
High Alarm Low Alarm High Warning Low Warning
Gi1/0/27 5.000000 -- -- --
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