[  485.958344] netdevsim netdevsim517 eni517np1: renamed from eth1
[  486.055608] netdevsim netdevsim333 eni333np1: renamed from eth0
[  486.271768] Could not find device with ifindex 2000 in netnsfd 11
[  486.272075] Could not find netns with fd: 2000
[  486.272178] Cannot link a netdevsim to itself
[  486.272281] Format for linking two devices is "netnsfd_a:ifidx_a netnsfd_b:ifidx_b" (int uint int uint).