[  512.124471] netdevsim netdevsim408 eni408np1: renamed from eth0
[  512.222599] netdevsim netdevsim757 eni757np1: renamed from eth1
[  512.416849] Could not find device with ifindex 2000 in netnsfd 11
[  512.417032] Could not find netns with fd: 2000
[  512.417123] Cannot link a netdevsim to itself
[  512.417226] Format for linking two devices is "netnsfd_a:ifidx_a netnsfd_b:ifidx_b" (int uint int uint).