[  519.469641] netdevsim netdevsim667 eni667np1: renamed from eth1
[  519.566059] netdevsim netdevsim412 eni412np1: renamed from eth0
[  519.790484] Could not find device with ifindex 2000 in netnsfd 11
[  519.790625] Could not find netns with fd: 2000
[  519.790697] Cannot link a netdevsim to itself
[  519.790800] Format for linking two devices is "netnsfd_a:ifidx_a netnsfd_b:ifidx_b" (int uint int uint).