Chapter 11
  |  Interface Commands
Transceiver Threshold Configuration
–  368  –
Command Mode 
Interface Configuration (
SFP/
SFP+ Ports)
Command Usage
◆
If trap messages are enabled with the transceiver-monitor command, and a 
high-threshold alarm or warning message is sent if the current value is greater 
than or equal to the threshold, and the last sample value was less than the 
threshold. After a rising event has been generated, another such event will not 
be generated until the sampled value has fallen below the high threshold and 
reaches the low threshold.
◆
If trap messages are enabled with the transceiver-monitor command, and a 
low-threshold alarm or warning message is sent if the current value is less than 
or equal to the threshold, and the last sample value was greater than the 
threshold. After a falling event has been generated, another such event will not 
be generated until the sampled value has risen above the low threshold and 
reaches the high threshold.
◆
Threshold events are triggered as described above to avoid a hysteresis effect 
which would continuously trigger event messages if the power level were to 
fluctuate just above and below either the high threshold or the low threshold. 
◆
Trap messages enabled by the transceiver-monitor command are sent to any 
management station configured by the snmp-server host command.
Example 
The following example sets alarm thresholds for the transceiver current at port 1.
Console(config)interface ethernet 1/1
Console(config-if)#transceiver-threshold current low-alarm 100
Console(config-if)#transceiver-threshold rx-power high-alarm 700
Console#
transceiver-threshold
rx-power
This command sets thresholds for the transceiver power level of the received signal 
which can be used to trigger an alarm or warning message. 
Syntax 
transceiver-threshold rx-power
 {
high-alarm
 | 
high-warning
 | 
low-alarm
 | 
low-warning
} threshold-value
high-alarm
 – Sets the high power threshold for an alarm message.
high-warning
 – Sets the high power threshold for a warning message.
low-alarm
 – Sets the low power threshold for an alarm message.
low-warning
 – Sets the low power threshold for a warning message.
threshold-value – The power threshold of the received signal. 
(Range: -4000 - 820 in units of 0.01 dBm)