[  474.481895] netdevsim netdevsim472 eni472np1: renamed from eth0
[  474.482578] netdevsim netdevsim619 eni619np1: renamed from eth1
[  474.567728] Could not find device with ifindex 2000 in netnsfd 11
[  474.567889] Could not find netns with fd: 2000
[  474.567993] Cannot link a netdevsim to itself
[  474.568099] Format for linking two devices is "netnsfd_a:ifidx_a netnsfd_b:ifidx_b" (int uint int uint).