Issue | Cause | Solution |
---|---|---|
Ethernet interfaces renaming fails leaving them with names such as renameXY. | Invalid udev rules. | Review the udev rules inside the "/etc/ udev/rules.d/70-persistent-net.rules" file. Modify the rules such that every rule is unique to the target interface, by adding correct unique attribute values to each interface, such as dev_id, dev_port and KERNELS or address). Example of valid udev rules:
|
No link. | Misconfiguration of the switch port or using a cable not supporting link rate. |
|
Degraded performance is measured when having a mixed rate environment (10GbE, 40GbE and 56GbE). | Sending traffic from a node with a higher rate to a node with lower rate. | Enable Flow Control on both switch ports and nodes:
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No link with break-out cable. | Misuse of the break-out cable or misconfiguration of the switch's split ports |
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