[  519.491418] netdevsim netdevsim573 eni573np1: renamed from eth1
[  519.588895] netdevsim netdevsim256 eni256np1: renamed from eth0
[  519.813291] Could not find device with ifindex 2000 in netnsfd 11
[  519.813497] Could not find netns with fd: 2000
[  519.813599] Cannot link a netdevsim to itself
[  519.813726] Format for linking two devices is "netnsfd_a:ifidx_a netnsfd_b:ifidx_b" (int uint int uint).