[  522.642638] netdevsim netdevsim541 eni541np1: renamed from eth1
[  522.739801] netdevsim netdevsim262 eni262np1: renamed from eth0
[  522.981839] Could not find device with ifindex 2000 in netnsfd 11
[  522.982055] Could not find netns with fd: 2000
[  522.982175] Cannot link a netdevsim to itself
[  522.982309] Format for linking two devices is "netnsfd_a:ifidx_a netnsfd_b:ifidx_b" (int uint int uint).