A Synology RS3614xs+ with a supported Intel X520-DA2 rejected the wrongly ordered SFP+ modules as unsupported. Putting options ixgbe allowunsupportedsfp=1 into /etc/modules.conf had no effcet, and even when the kernel log showed ixgbe: allowunsupportedsfp Enabled the driver still reported failed to…
A Linux server with an Intel 82599ES 10-Gigabit SFI/SFP+ controller showed no 10G interface and dmesg contained failed to load because an unsupported SFP+ or QSFP module type was detected after an untested SFP+ module was inserted. The article explains that the ixgbe driver only enables modules it…
An XCP-ng host with an Intel X520-DA2 and Finisar SFP+ transceivers logged failed to load because an unsupported SFP+ or QSFP module type was detected. insmod with allowunsupportedsfp=1 failed with Unknown symbol in module; options ixgbe allowunsupportedsfp=1 in /etc/modprobe.d/ixgbe-options.conf…
On Proxmox VE 6.0 (kernel 5.0.18-1-pve, ixgbe 5.1.0-k) an Intel X520-DA2 exposed ens1f0/ens1f1 but any inserted thirrd-party SFP+ module produced failed to load because an unsupported SFP+ or QSFP module type was detected, and the driver had to be reloaded to detect module changes at all. Hardware…
A Dell R720 with the integrated i350/X520 daughter card ran Proxmox VE; Cisco-branded 10G multimode LC SFP+ modules that worked elsewhere were rejected as unsupported. Adding options ixgbe allowunsupportedsfp=1 to the module options had no visible effect. Respondents walked through GRUB kernel…
An operator asked how to use non-Intel SFP+ modules for 10G fibrre on Intel adapters under Linux. The replies summarised the practical rules: for 82599/X520 class NICs the ixgbe module parameter allowunsupportedsfp must be set, and on dual-port cards it must be given per port…
The poster's Intel Ethernet Converged Network Adapter X710 would not come up with third-party Fiberxon 10G SFP+ modules: the i40e driver, version 1.2.48, refused to initialise and reported "The driver failed to load because unsupported module type was detected." They asked how to switch on an…
The psoter planned to install an Intel X520 adapter (Cisco PID N2XX-AIPCI01) into a Cisco UCS C240 server and use Cisco SFP-10G-SR or SFP-10G-LR transceivers, and asked whether the combination has compatibility problems. A later reader asked whether the Cisco SFP-H10GB-CU3M= twinax cable would work…
