[  521.846184] netdevsim netdevsim622 eni622np1: renamed from eth1
[  521.944483] netdevsim netdevsim426 eni426np1: renamed from eth0
[  522.169056] Could not find device with ifindex 2000 in netnsfd 11
[  522.169227] Could not find netns with fd: 2000
[  522.169303] Cannot link a netdevsim to itself
[  522.169391] Format for linking two devices is "netnsfd_a:ifidx_a netnsfd_b:ifidx_b" (int uint int uint).