[ 1021.678731][T12651] netdevsim netdevsim697 eni697np1: renamed from eth1
[ 1021.789017][T12583] netdevsim netdevsim312 eni312np1: renamed from eth0
[ 1023.662949][T12729] Could not find device with ifindex 2000 in netnsfd 11
[ 1023.663995][T12729] Could not find netns with fd: 2000
[ 1023.664725][T12729] Cannot link a netdevsim to itself
[ 1023.665539][T12729] Format for linking two devices is "netnsfd_a:ifidx_a netnsfd_b:ifidx_b" (int uint int uint).