Voltage low alarm in Transceiver

[jc.saavedra]

I have  the follow error in a SW3750:

%SFF8472-5-THRESHOLD_VIOLATION: Te2/0/1: Voltage low alarm; Operating value: 0.00 V, Threshold value: 3.07 V.

I used the command:

#sho interfaces transceiver

If device is externally calibrated, only calibrated values are printed.

++ : high alarm, +  : high warning, -  : low warning, -- : low alarm.

NA or N/A: not applicable, Tx: transmit, Rx: receive.

mA: milliamperes, dBm: decibels (milliwatts).

                                 Optical   Optical

           Temperature  Voltage  Tx Power  Rx Power

Port       (Celsius)    (Volts)  (dBm)     (dBm)

---------  -----------  -------  --------  --------

Te1/0/1      33.8       0.00      -2.5      -2.5  

Te2/0/1      34.7       0.00      -2.5      -1.5  

and

#sho interfaces t1/0/1 transceiver

ITU Channel not available (Wavelength not available),

Transceiver is internally calibrated.

If device is externally calibrated, only calibrated values are printed.

++ : high alarm, +  : high warning, -  : low warning, -- : low alarm.

NA or N/A: not applicable, Tx: transmit, Rx: receive.

mA: milliamperes, dBm: decibels (milliwatts).

                                 Optical   Optical

           Temperature  Voltage  Tx Power  Rx Power

Port       (Celsius)    (Volts)  (dBm)     (dBm)

---------  -----------  -------  --------  --------

Te1/0/1      33.7       0.00      -2.5      -2.5  

The alert is send every 2 mins.

is possible configure the threshold  ?

Thanks.

[smehrnia · Accepted solution]

Hi,

do you get the same error on the other end?

usually, these errors could pop up 'coz of a bad or Non-Cisco GBIC modules.

try to relocate or replace gbic's and see if u r still getting the same error.

and if there is nothing wrong with the connection and you just get these warning messeages you could just filter them:

logging discriminator LOGFILTER mnemonics drops SFF8472-5-THRESHOLD_VIOLATION

logging buffered discriminator LOGFILTER 4096

logging console discriminator LOGFILTER

logging monitor discriminator LOGFILTER

plz Rate if it helped,

Soroush.