No option to force Intel X710-T4 to 2.5Gb in interface settings

[network_pseudonym]

I have a (genuine) Intel X710-T4 which I believe is supposed to work at 2.5Gb. It is working at 10Gb with two devices, but it doesn't auto-negotiate 2.5Gb with another NIC, and forcing that NIC to 2.5Gb doesn't work. In the "Speed and duplex" pull down for the Interface settings, there is no option to force 2.5Gb, only 100, 1000 and 10000. Ideas?

[Seimus]

Believing and knowing are two different things.

https://www.intel.com/content/www/us/en/products/sku/93428/intel-ethernet-converged-network-adapter-x710t4/specifications.html

Data Rate Per Port
10GbE/1GbE/100Mb

Where did you see its capable of 2.5G? Per the official specs it doesn't support it.

Regards,
S.

[zz00mm]

Intel X550 supports 10/5/2.5/1, currently using X550-T2 in HA configuration connecting to Comcast 2.5GbE ports on modem for 1.2Gb internet

[pfry]

10GbE/1GbE/100Mb

Some x710s can: Intel® Ethernet Network Adapter X710. But apparently only the low-profile, and certain revisions to boot.

[network_pseudonym]

Where did you see its capable of 2.5G? Per the official specs it doesn't support it.

Various sellers advertising the units, but perhaps there is some confusion (on their part and/or mine) between a T4 and T4L.

[Seimus]

Most likely,

Cause the T4L supports 2.5G while the T4 not. T4 NIC uses a different chip and by default doesn't support 2,5G speeds.

Regards,
S.