[ 1220.896397][T12775] netdevsim netdevsim756 eni756np1: renamed from eth1
[ 1220.972095][T12776] netdevsim netdevsim391 eni391np1: renamed from eth0
[ 1223.325713][T12769] Could not find device with ifindex 2000 in netnsfd 11
[ 1223.327420][T12769] Could not find netns with fd: 2000
[ 1223.328781][T12769] Cannot link a netdevsim to itself
[ 1223.330537][T12769] Format for linking two devices is "netnsfd_a:ifidx_a netnsfd_b:ifidx_b" (int uint int uint).