Troubleshooting Tip: SFP transceiver command on a FortiGate

[nsubramanian]

Description
When Small Form-Factor pluggable (SFP) transceivers are installed on the FortiGate, issues may be encountered with establishing a valid physical link.

Symptoms include associated ports being shown with the link down (red arrow icon) on the GUI and link lights on the FortiGate device for the associated ports not indicating a link.

In this case, it is worthwhile to verify the FortiGate configuration for the associated port.

This article describes this feature.

Scope
All FortiGate models having SFP Modules.

Solution
This command is only available on certain of the FortiGate D-series models, such as the FortiGate 100D, 240D, 1500D, 3700D, 3810D and 3815D.  The device must also be running FortiOS 5.4.x.

The command to use is '# get system interface transceiver' to retrieve information for all interfaces or '# get system interface transceiver <interface>' for a single interface.
Sample result is as below:

 # get sys interface transceiver

Interface port1: SFP or QSFP transceiver is not detected.
Interface port2: SFP or QSFP transceiver is not detected.
Interface port3: SFP or QSFP transceiver is not detected.
Interface port4: SFP or QSFP transceiver is not detected.
Interface port5: SFP or QSFP transceiver is not detected.
Interface port6: SFP or QSFP transceiver is not detected.
Interface port7: SFP or QSFP transceiver is not detected.
Interface port8: SFP or QSFP transceiver is not detected.
Interface port9: SFP/SFP+
  Vendor Name: Axcen Photonics
  Part No.   : AXXE-5886-05B1
  Serial No. : AX14170008967
Interface port10: SFP or QSFP transceiver is not detected.
Interface port11: SFP/SFP+
  Vendor Name: FIBERXON INC.
  Part No.   : FTM-8012C-SL
  Serial No. : A8660061719307
Interface port12: SFP or QSFP transceiver is not detected.
Interface port13: SFP or QSFP transceiver is not detected.
Interface port14: SFP or QSFP transceiver is not detected.
Interface port15: SFP or QSFP transceiver is not detected.
Interface port16: SFP or QSFP transceiver is not detected.
Interface port17: SFP or QSFP transceiver is not detected.
Interface port18: SFP or QSFP transceiver is not detected.
Interface port19: SFP or QSFP transceiver is not detected.
Interface port20: SFP or QSFP transceiver is not detected.
Interface port21: SFP or QSFP transceiver is not detected.
Interface port22: SFP or QSFP transceiver is not detected.
Interface port23: SFP or QSFP transceiver is not detected.
Interface port24: SFP or QSFP transceiver is not detected.
Interface port25: SFP or QSFP transceiver is not detected.
Interface port26: SFP or QSFP transceiver is not detected.
Interface port27: SFP or QSFP transceiver is not detected.
Interface port28: SFP or QSFP transceiver is not detected.
Interface port29: SFP or QSFP transceiver is not detected.
Interface port30: SFP or QSFP transceiver is not detected.
Interface port31: SFP or QSFP transceiver is not detected.
Interface port32: SFP or QSFP transceiver is not detected.
Interface port33: SFP or QSFP transceiver is not detected.
Interface port34: SFP or QSFP transceiver is not detected.
Interface port35: SFP or QSFP transceiver is not detected.
Interface port36: SFP or QSFP transceiver is not detected.
Interface port37: SFP or QSFP transceiver is not detected.
Interface port38: SFP or QSFP transceiver is not detected.
Interface port39: SFP or QSFP transceiver is not detected.
Interface port40: SFP or QSFP transceiver is not detected.
Interface port41: SFP or QSFP transceiver is not detected.
Interface port42: SFP or QSFP transceiver is not detected.
Interface port43: SFP or QSFP transceiver is not detected.
Interface port44: SFP or QSFP transceiver is not detected.
Interface port45: SFP or QSFP transceiver is not detected.
Interface port46: SFP or QSFP transceiver is not detected.
Interface port47: SFP or QSFP transceiver is not detected.
Interface port48: SFP or QSFP transceiver is not detected.

                                      Optical    Optical    Optical
SFP/SFP+      Temperature  Voltage    Tx Bias    Tx Power   Rx Power
Interface     (Celsius)    (Volts)    (mA)       (dBm)      (dBm)
------------  -----------  ---------  ---------  ---------  --------
       port9   34.1         3.31       6.35       -1.9      -40.0 --
      port11   N/A          N/A        N/A        N/A        N/A
  ++ : high alarm, + : high warning, - : low warning, -- : low alarm, ? : suspect