[ 1268.299385][T12851] netdevsim netdevsim667 eni667np1: renamed from eth1
[ 1268.439148][T12854] netdevsim netdevsim501 eni501np1: renamed from eth0
[ 1271.059240][T12842] Could not find device with ifindex 2000 in netnsfd 11
[ 1271.061055][T12842] Could not find netns with fd: 2000
[ 1271.062041][T12842] Cannot link a netdevsim to itself
[ 1271.063466][T12842] Format for linking two devices is "netnsfd_a:ifidx_a netnsfd_b:ifidx_b" (int uint int uint).