[ 1043.739125][T12749] netdevsim netdevsim651 eni651np1: renamed from eth1
[ 1043.741023][T12752] netdevsim netdevsim450 eni450np1: renamed from eth0
[ 1045.491602][T12744] Could not find device with ifindex 2000 in netnsfd 11
[ 1045.492530][T12744] Could not find netns with fd: 2000
[ 1045.493156][T12744] Cannot link a netdevsim to itself
[ 1045.493904][T12744] Format for linking two devices is "netnsfd_a:ifidx_a netnsfd_b:ifidx_b" (int uint int uint).