[ 1389.857032][T13051] netdevsim netdevsim623 eni623np1: renamed from eth1
[ 1390.009845][T13053] netdevsim netdevsim307 eni307np1: renamed from eth0
[ 1393.008615][T13040] Could not find device with ifindex 2000 in netnsfd 11
[ 1393.011838][T13040] Could not find netns with fd: 2000
[ 1393.013310][T13040] Cannot link a netdevsim to itself
[ 1393.015057][T13040] Format for linking two devices is "netnsfd_a:ifidx_a netnsfd_b:ifidx_b" (int uint int uint).