[ 1019.654447][T12574] netdevsim netdevsim268 eni268np1: renamed from eth0
[ 1019.737335][T12573] netdevsim netdevsim681 eni681np1: renamed from eth1
[ 1021.476338][T12719] Could not find device with ifindex 2000 in netnsfd 11
[ 1021.477425][T12719] Could not find netns with fd: 2000
[ 1021.478754][T12719] Cannot link a netdevsim to itself
[ 1021.479723][T12719] Format for linking two devices is "netnsfd_a:ifidx_a netnsfd_b:ifidx_b" (int uint int uint).