[  520.450529] netdevsim netdevsim432 eni432np1: renamed from eth0
[  520.547697] netdevsim netdevsim684 eni684np1: renamed from eth1
[  520.777887] Could not find device with ifindex 2000 in netnsfd 11
[  520.778083] Could not find netns with fd: 2000
[  520.778183] Cannot link a netdevsim to itself
[  520.778297] Format for linking two devices is "netnsfd_a:ifidx_a netnsfd_b:ifidx_b" (int uint int uint).