[  522.033929] netdevsim netdevsim408 eni408np1: renamed from eth0
[  522.131596] netdevsim netdevsim629 eni629np1: renamed from eth1
[  522.345050] Could not find device with ifindex 2000 in netnsfd 11
[  522.345232] Could not find netns with fd: 2000
[  522.345314] Cannot link a netdevsim to itself
[  522.345418] Format for linking two devices is "netnsfd_a:ifidx_a netnsfd_b:ifidx_b" (int uint int uint).