[pve-devel] [PATCH] qemu-server: add support for unsecure migration (setting in datacenter.cfg)

[Dietmar Maurer]

> > Again, you can run more than one ssh connection if you want to migrate
> dozens of machines.
> 
> But remember that each migration needs 100% CPU so a WHOLE core. So you
> cannot run dozens of migration in parallel.

You just need 2 to saturate the network. You already tried aes128-ctr?