[  783.373365][T14640] netdevsim netdevsim490 eni490np1: renamed from eth0
[  783.392115][T14642] netdevsim netdevsim681 eni681np1: renamed from eth1
[  783.992019][T14628] Could not find device with ifindex 2000 in netnsfd 11
[  783.992659][T14628] Could not find netns with fd: 2000
[  783.993182][T14628] Cannot link a netdevsim to itself
[  783.993731][T14628] Format for linking two devices is "netnsfd_a:ifidx_a netnsfd_b:ifidx_b" (int uint int uint).