Poor transfer rate across virtual machines across nodes

[minidaniel0926]

Dear professional friends
I have a question. The network bandwidth of my physical host is 1Gb. The switch also shows a 1Gb connection. The virtual machine settings are also the 1Gb network card settings, but each virtual machine in the cluster is transmitting data. , the speed is still only 10Mb, but the virtual machines on the same node can copy data to each other at the desired speed. What settings do I need to modify, or what am I doing wrong?

Thanks for the help

 

[LnxBil]

How to you transfer the files? You can check the maximum bandwidth by e.g. ipferf and test the physical limitations. If the limit is not visible there, the problem is on the guests.

 

[Randell]

To expand on what LnxBil said, you need to run some iperf3 tests between the hosts. You could have a bad nic, a bad cable, or a bad switch/port. Once you know, host to host, that you can reach 1gb, then go from there.