[  629.358010][T10006] netdevsim netdevsim423 eni423np1: renamed from eth0
[  629.363245][T10007] netdevsim netdevsim658 eni658np1: renamed from eth1
[  630.000030][ T9992] Could not find device with ifindex 2000 in netnsfd 11
[  630.000633][ T9992] Could not find netns with fd: 2000
[  630.001094][ T9992] Cannot link a netdevsim to itself
[  630.001784][ T9992] Format for linking two devices is "netnsfd_a:ifidx_a netnsfd_b:ifidx_b" (int uint int uint).