[  518.562886] netdevsim netdevsim406 eni406np1: renamed from eth0
[  518.661335] netdevsim netdevsim635 eni635np1: renamed from eth1
[  518.858333] Could not find device with ifindex 2000 in netnsfd 11
[  518.858479] Could not find netns with fd: 2000
[  518.858549] Cannot link a netdevsim to itself
[  518.858635] Format for linking two devices is "netnsfd_a:ifidx_a netnsfd_b:ifidx_b" (int uint int uint).