Summary
This KB article addresses an uncommon issue related to Intel ‘ixgbe’ driver support in the kernels that ship with Swarm. Specifically, there may be rare occasions where the SFP/SFP+/QSFP modules that are used in the servers in question show up as being unsupported by the ‘ixgbe’ driver.
Workaround
The symptom of this can be seen in dmesg output for the node and would look similar to the following:
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