Monday, May 4, 2020

QSFP power level question

Few days ago we saw lots of packet loss and later we found following power level -9 on one of 40G interface compare others which has -1 to -2

Do you think following -9 dbm could be issue of packet loss (i didn't see any CRC error on interface)

Lane Number:2 Network Lane SFP Detail Diagnostics Information (internal calibration) ---------------------------------------------------------------------------- Current Alarms Warnings Measurement High Low High Low ---------------------------------------------------------------------------- Temperature 25.85 C 80.00 C -10.00 C 75.00 C -5.00 C Voltage 3.42 V 3.70 V 2.90 V 3.59 V 3.00 V Current 34.49 mA 75.00 mA 10.00 mA 70.00 mA 15.00 mA Tx Power -2.61 dBm 3.29 dBm -8.21 dBm 2.29 dBm -7.01 dBm Rx Power -9.24 dBm 4.49 dBm -16.57 dBm 2.49 dBm -14.43 dBm Transmit Fault Count = 0 ---------------------------------------------------------------------------- Note: ++ high-alarm; + high-warning; -- low-alarm; - low-warning 


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