[  484.160687] netdevsim netdevsim404 eni404np1: renamed from eth0
[  484.262916] netdevsim netdevsim519 eni519np1: renamed from eth1
[  484.605399] Could not find device with ifindex 2000 in netnsfd 11
[  484.605578] Could not find netns with fd: 2000
[  484.605679] Cannot link a netdevsim to itself
[  484.605781] Format for linking two devices is "netnsfd_a:ifidx_a netnsfd_b:ifidx_b" (int uint int uint).