[ 1270.870808][T12846] netdevsim netdevsim517 eni517np1: renamed from eth1
[ 1270.997977][T12844] netdevsim netdevsim331 eni331np1: renamed from eth0
[ 1273.510890][T12832] Could not find device with ifindex 2000 in netnsfd 11
[ 1273.513032][T12832] Could not find netns with fd: 2000
[ 1273.514108][T12832] Cannot link a netdevsim to itself
[ 1273.515305][T12832] Format for linking two devices is "netnsfd_a:ifidx_a netnsfd_b:ifidx_b" (int uint int uint).