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MetroCluster ISL links not coming up with X65406 transceivers

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Applies to

  • ONTAP 9
  • MetroCluster IP
  • X65406 100Gb LWL transceivers
  • Cisco back-end IP switches 

Issue

  • Remote ISLs are not coming online during the initial setup of the system
  • show interface brief status of the port is Link not connected
`show interface brief`

Eth1/15         1       eth  trunk  down    Link not connected       auto(D) 10
  • Rx power is not detected by the switch:
`show interface transceiver detail`
 
Ethernet1/15
    transceiver is present
    type is QSFP-100G-CWDM4
    name is FINISAR CORP.
    part number is FTLC1157RGPL
Lane Number:1 Network Lane
           SFP Detail Diagnostics Information (internal calibration)
  ----------------------------------------------------------------------------
                Current              Alarms                  Warnings
                Measurement     High        Low         High          Low
  ----------------------------------------------------------------------------
  Temperature   46.84 C        75.00 C     -5.00 C     70.00 C        0.00 C
  Voltage        3.26 V         3.63 V      2.97 V      3.46 V        3.13 V
  Current       35.65 mA       77.00 mA    13.00 mA    72.00 mA      18.00 mA
  Tx Power       1.57 dBm       5.49 dBm   -8.01 dBm    2.49 dBm     -4.00 dBm
  Rx Power          N/A         3.49 dBm  -16.02 dBm    2.49 dBm    -12.00 dBm
  • Local loop back test show the link is coming up
  • Cabling both local switches brings the link up

 

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