We bought IS5031 switch and found only top 18 ports works. The website says

This stand-alone switch is available as an 18-port switch that can be field upgraded to a 36-port switch

But no further instruction is shown for this upgrade. What shall we do for this upgrade? Thanks.

  • 2
    Get a license key from Mellanox.
    – Ricky
    Commented Dec 20, 2018 at 16:58

1 Answer 1


Contact your reseller and purchase the appropriate license key. See the part numbers at the bottom of the datasheet. They will need the serial number and then provide you with a license key.

Log into the switch CLI and enter the provided license key:

switch (config) # license install PROVIDED-KEY

The other 18 ports should now work.

  • Thanks. But all retailers I contacted say the model is old and they don't have it. Anyway, thanks.
    – wm8120
    Commented Dec 21, 2018 at 7:49

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