SCP, Rsync, NFS don`t work between proxmox nodes

[Salenik.E]

Hello

I am trying to configure file sharing between two Proxmox nodes. When I run scp or rsync a file on the remote host is created, but the data is not copied. The same thing happens when using NFS.
However, if you use a third node, for example, a Debian-based virtual machine, then the data from it is transmitted to both Proxmox nodes without problems.
I can’t understand why data is not transmitted directly between proxmox nodes.

 

[aaron]

This is weird. Have you tried running scp with the -v flag to get more output? It might tell you where it is hanging / failing.

 

[Salenik.E]

The same hangs at the data transfer stage. Note that the file size is null. However, files from another host are perfectly transferred. For example, from the host "cloud" to a machine with proxmox.

 

[Salenik.E]

Hi.
Problem was on mtu=9000.

igb: Intel(R) Gigabit Ethernet Network Driver - version 5.6.0-k
proxmox-ve: 6.1-2 (running kernel: 5.3.18-2-pve)