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,
Thank you for the update and glad the tool made it works for you. Please feel free to update me if you still have other inquiries. Thank you.