[  746.414607][T14643] netdevsim netdevsim438 eni438np1: renamed from eth0
[  746.430478][T14645] netdevsim netdevsim663 eni663np1: renamed from eth1
[  746.957718][T14631] Could not find device with ifindex 2000 in netnsfd 11
[  746.958224][T14631] Could not find netns with fd: 2000
[  746.958565][T14631] Cannot link a netdevsim to itself
[  746.958962][T14631] Format for linking two devices is "netnsfd_a:ifidx_a netnsfd_b:ifidx_b" (int uint int uint).