[  751.555965][T14450] netdevsim netdevsim269 eni269np1: renamed from eth0
[  751.571203][T14452] netdevsim netdevsim681 eni681np1: renamed from eth1
[  752.143451][T14438] Could not find device with ifindex 2000 in netnsfd 11
[  752.144124][T14438] Could not find netns with fd: 2000
[  752.144968][T14438] Cannot link a netdevsim to itself
[  752.145524][T14438] Format for linking two devices is "netnsfd_a:ifidx_a netnsfd_b:ifidx_b" (int uint int uint).