[  480.121743] netdevsim netdevsim321 eni321np1: renamed from eth0
[  480.223409] netdevsim netdevsim549 eni549np1: renamed from eth1
[  480.603271] Could not find device with ifindex 2000 in netnsfd 11
[  480.603403] Could not find netns with fd: 2000
[  480.603466] Cannot link a netdevsim to itself
[  480.603546] Format for linking two devices is "netnsfd_a:ifidx_a netnsfd_b:ifidx_b" (int uint int uint).