[  522.125333] netdevsim netdevsim438 eni438np1: renamed from eth0
[  522.221588] netdevsim netdevsim522 eni522np1: renamed from eth1
[  522.474289] Could not find device with ifindex 2000 in netnsfd 11
[  522.474536] Could not find netns with fd: 2000
[  522.474638] Cannot link a netdevsim to itself
[  522.474750] Format for linking two devices is "netnsfd_a:ifidx_a netnsfd_b:ifidx_b" (int uint int uint).