[  481.160275] netdevsim netdevsim673 eni673np1: renamed from eth1
[  481.260737] netdevsim netdevsim256 eni256np1: renamed from eth0
[  481.616515] Could not find device with ifindex 2000 in netnsfd 11
[  481.616677] Could not find netns with fd: 2000
[  481.616749] Cannot link a netdevsim to itself
[  481.616840] Format for linking two devices is "netnsfd_a:ifidx_a netnsfd_b:ifidx_b" (int uint int uint).