08-13-2018 09:54 AM
When connecting the Lenovo Switch (NE1072T) to a 10G ethernet port of a Supermicro mainboard (X10SRM-TF) in power off state, the connection is not established. The port LED stays dark. Sometimes after plug out and in the ethernet cable several times to different switch ports, the port LED is on and the connection is ok. Mainboard in powered off state means the power cable is plugged in the PC, but it is not switched on. In this state the mainboard onboard controller (BMC) should be reachable through ethernet to e.g. power on the PC remotely.
When instead of the 10G port the dedicated BMC port of the mainboard is used, the connection is working in power off state.
Setting the switch interface speed from auto negotiation to 1G did not help.
The NE1072T firmware version is:
Bootloader version: 10.4.4.0
System version: 10.4.4.0
For comparison I connected the mainboard to a Cisco SG350XG-24T switch. In this case the connection to the mainboard is working. When the interface speed is set to auto negotiation the speed is 100M. In addition to that the connection is working when the interface speed is set to 1G. I tried this, because the NE1072T seems not to support 100M.
Solved! Go to Solution.
08-13-2018 12:20 PM
I recommend upgrading to the latest code (10.8.1) as there are many fixes, some specifically for running 1G, along with the addition of now supporting 100M on the RJ45 ports. This code also changes the CLI to be more industry standard, including using "show" instead of "display", and "switchport" instead of "bridge-port" and so on. The code for this switch can be found at the following link:
Once the zip file is downloaded and extracted, you can install it a number of ways, including TFTP, FTP, SFTP and USB. An example of using a TFTP server would be as follows:
Assumes the .imgs file is in the root of the TFTP server, that you are using the RJ45 management port for connection, and you change the X.X.X.X to the IP address of the TFTP server. Run the following command to install the code, and then answer "Y" to change to this code on the next reload, and then "reload" the switch to have the code take effect
cp tftp tftp://X.X.X.X/NE1072T-CNOS-10.8.1.0.imgs system-image all vrf management
If you wanted to use a USB key, format one for FAT32 and put the imgs file in the root of the memory key, plug it into the switch and run the following command:
cp usb1 NE1072T-CNOS-10.8.1.0.imgs system-image all
Like the TFTP install, answer "Y" when asked to use the new code, and then perform a "reload" to take effect.
Please let us know if this resolves your issue or if you are still having problems after the upgrade.
08-15-2018 09:07 AM
Thank you for the firmware update instructions.
After update to current firmware (version 10.8.1.0) the connection is working.
Just for information:
When the mainboard is in power off state the connection speed is 100M.
When the mainboard is in power off state and the interface speed is set to 1G, the connection is not working.