[  522.636909] netdevsim netdevsim767 eni767np1: renamed from eth1
[  522.734458] netdevsim netdevsim379 eni379np1: renamed from eth0
[  522.977276] Could not find device with ifindex 2000 in netnsfd 11
[  522.977427] Could not find netns with fd: 2000
[  522.977499] Cannot link a netdevsim to itself
[  522.977583] Format for linking two devices is "netnsfd_a:ifidx_a netnsfd_b:ifidx_b" (int uint int uint).