[  529.235036] netdevsim netdevsim452 eni452np1: renamed from eth0
[  529.331531] netdevsim netdevsim536 eni536np1: renamed from eth1
[  529.600851] Could not find device with ifindex 2000 in netnsfd 11
[  529.601081] Could not find netns with fd: 2000
[  529.601201] Cannot link a netdevsim to itself
[  529.601330] Format for linking two devices is "netnsfd_a:ifidx_a netnsfd_b:ifidx_b" (int uint int uint).