[  476.954844] netdevsim netdevsim722 eni722np1: renamed from eth1
[  476.955325] netdevsim netdevsim452 eni452np1: renamed from eth0
[  477.043347] Could not find device with ifindex 2000 in netnsfd 11
[  477.043436] Could not find netns with fd: 2000
[  477.043480] Cannot link a netdevsim to itself
[  477.043540] Format for linking two devices is "netnsfd_a:ifidx_a netnsfd_b:ifidx_b" (int uint int uint).