[  771.360059][T14742] netdevsim netdevsim493 eni493np1: renamed from eth0
[  771.373179][T14744] netdevsim netdevsim604 eni604np1: renamed from eth1
[  771.965512][T14730] Could not find device with ifindex 2000 in netnsfd 11
[  771.966013][T14730] Could not find netns with fd: 2000
[  771.966604][T14730] Cannot link a netdevsim to itself
[  771.967148][T14730] Format for linking two devices is "netnsfd_a:ifidx_a netnsfd_b:ifidx_b" (int uint int uint).