[  999.077271][T12128] netdevsim netdevsim531 eni531np1: renamed from eth1
[  999.196820][T12062] netdevsim netdevsim318 eni318np1: renamed from eth0
[ 1001.043302][T12449] Could not find device with ifindex 2000 in netnsfd 11
[ 1001.044251][T12449] Could not find netns with fd: 2000
[ 1001.044917][T12449] Cannot link a netdevsim to itself
[ 1001.045724][T12449] Format for linking two devices is "netnsfd_a:ifidx_a netnsfd_b:ifidx_b" (int uint int uint).