[  479.509724] netdevsim netdevsim390 eni390np1: renamed from eth0
[  479.511259] netdevsim netdevsim710 eni710np1: renamed from eth1
[  479.600057] Could not find device with ifindex 2000 in netnsfd 11
[  479.600233] Could not find netns with fd: 2000
[  479.600293] Cannot link a netdevsim to itself
[  479.600391] Format for linking two devices is "netnsfd_a:ifidx_a netnsfd_b:ifidx_b" (int uint int uint).