I have a question regarding to the direct connectability of NICs without any switch.
I have a computer equipped with Intel ethernet CNA X710-DA4FH (4x10gbps) and another computer with Intel ethernet CNA XL710-QDA1 (1x40gbps). They are connected directly using Intel X4DACBL3 Ethernet QSFP 40G QSFP+ to 4x10G Breakout Cable. Theoretically, is it a possible setup? Unfortunately, I could not make it work.
Thanks in advance!
Thank you for the quick reply!
I have freshly installed Debian stretch x64 systems.
# cat /proc/version
The drivers are also up to date.
# ethtool -i ens6f0
firmware-version: 6.01 0x800034af 1.1747.0
On the other machine (XL710-QDA1):
# ethtool -i enp4s0f0
firmware-version: 6.01 0x800034a3 1.1747.0
Thank you for your help!
Thank you for the information. You may need to use a a QSFP to SFP cable. Aside from that, did you try using the QCU tool to convert the XL710 40Gb ports to 10 GB?
You may download the tool at https://downloadcenter.intel.com/download/25851/Intel-QSFP-Configuration-Utility-Linux- and refer to the user guide
Thank you for your help. This tool made it! It works!
I would share my output from QCU tool after I set it up in 4x10GB mode.
Intel(R) QSFP+ Configuration Utility
QCU version: v2.30.16.08
Copyright(C) 2014 - 2017 by Intel Corporation.
Software released under Intel Proprietary License.
NIC Seg:Bus Ven-Dev Mode Adapter Name
=== ======= ========= ======== =================================================
1) 000:004 8086-1584 4x10 Intel(R) Ethernet Converged Network Adapter XL710
All the best,