[ 1209.623099][T12786] netdevsim netdevsim636 eni636np1: renamed from eth1
[ 1209.631233][T12785] netdevsim netdevsim453 eni453np1: renamed from eth0
[ 1212.058832][T12777] Could not find device with ifindex 2000 in netnsfd 11
[ 1212.059990][T12777] Could not find netns with fd: 2000
[ 1212.060842][T12777] Cannot link a netdevsim to itself
[ 1212.061884][T12777] Format for linking two devices is "netnsfd_a:ifidx_a netnsfd_b:ifidx_b" (int uint int uint).