[ 1223.565979][T12774] netdevsim netdevsim320 eni320np1: renamed from eth0
[ 1223.663582][T12775] netdevsim netdevsim531 eni531np1: renamed from eth1
[ 1226.233025][T12766] Could not find device with ifindex 2000 in netnsfd 11
[ 1226.234304][T12766] Could not find netns with fd: 2000
[ 1226.235339][T12766] Cannot link a netdevsim to itself
[ 1226.236481][T12766] Format for linking two devices is "netnsfd_a:ifidx_a netnsfd_b:ifidx_b" (int uint int uint).