[ 1225.239480][T11144] netdevsim netdevsim750 eni750np1: renamed from eth1
[ 1225.358198][T11145] netdevsim netdevsim393 eni393np1: renamed from eth0
[ 1228.743614][T11137] Could not find device with ifindex 2000 in netnsfd 11
[ 1228.744361][T11137] Could not find netns with fd: 2000
[ 1228.745020][T11137] Cannot link a netdevsim to itself
[ 1228.745727][T11137] Format for linking two devices is "netnsfd_a:ifidx_a netnsfd_b:ifidx_b" (int uint int uint).