[  704.168828][T13055] netdevsim netdevsim457 eni457np1: renamed from eth0
[  704.190454][T13057] netdevsim netdevsim523 eni523np1: renamed from eth1
[  704.814413][T13043] Could not find device with ifindex 2000 in netnsfd 11
[  704.815232][T13043] Could not find netns with fd: 2000
[  704.815603][T13043] Cannot link a netdevsim to itself
[  704.816056][T13043] Format for linking two devices is "netnsfd_a:ifidx_a netnsfd_b:ifidx_b" (int uint int uint).