[  489.644763] netdevsim netdevsim612 eni612np1: renamed from eth1
[  489.741028] netdevsim netdevsim382 eni382np1: renamed from eth0
[  489.961498] Could not find device with ifindex 2000 in netnsfd 11
[  489.961713] Could not find netns with fd: 2000
[  489.961795] Cannot link a netdevsim to itself
[  489.961880] Format for linking two devices is "netnsfd_a:ifidx_a netnsfd_b:ifidx_b" (int uint int uint).