[  757.060652][T14563] netdevsim netdevsim390 eni390np1: renamed from eth0
[  757.079051][T14565] netdevsim netdevsim731 eni731np1: renamed from eth1
[  757.757179][T14551] Could not find device with ifindex 2000 in netnsfd 11
[  757.757830][T14551] Could not find netns with fd: 2000
[  757.758323][T14551] Cannot link a netdevsim to itself
[  757.758877][T14551] Format for linking two devices is "netnsfd_a:ifidx_a netnsfd_b:ifidx_b" (int uint int uint).