[  522.055213] netdevsim netdevsim662 eni662np1: renamed from eth1
[  522.152425] netdevsim netdevsim472 eni472np1: renamed from eth0
[  522.369281] Could not find device with ifindex 2000 in netnsfd 11
[  522.369475] Could not find netns with fd: 2000
[  522.369564] Cannot link a netdevsim to itself
[  522.369674] Format for linking two devices is "netnsfd_a:ifidx_a netnsfd_b:ifidx_b" (int uint int uint).