Hello, I am looking for a command that would allow me to see the signal attenuation on FortiGate 900D and 1500D ports. I looked in the knowledge base, but I found only articles related to an ADSL line. I watched if there were similar commands in my 900D and 1500D, but without success. Would anyone know a magic command to see this attenuation ?
Just for information, the firewalls are running in v6.0.4. Thank in advance for your help.
Are you looking for command to see transmit/receive optical power at a fiber SFP? If that's the case it's measured at the SFP, not at FGT itself. To read off the info from an SFP is below:
xxx-fg3 (global) # get system interface transceiver port33 Interface port33 - SFP/SFP+ Vendor Name : CISCO-FINISAR Part No. : FTLX8571D3BCL-C Serial No. : FNSXXXXXXJJ Measurement Unit Value High Alarm High Warning Low Warning Low Alarm ------------ ------------ ------------ ------------ ------------ ------------ ------------ Temperature (Celsius) 37.9 75.0 70.0 0.0 -5.0 Voltage (Volts) 3.31 3.63 3.46 3.13 2.97 Tx Bias (mA) 7.87 11.80 10.80 5.00 4.00 Tx Power (dBm) -1.9 1.7 -1.3 -7.3 -11.3 Rx Power (dBm) -3.3 2.0 -1.0 -9.9 -13.9 ++ : high alarm, + : high warning, - : low warning, -- : low alarm, ? : suspect. But if an SFP is defective these numbers might not be correct. Regardless, you have to hook up a light meter at the both side of the cables to determine where the power loss point.
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