[  489.754631] netdevsim netdevsim297 eni297np1: renamed from eth0
[  489.851536] netdevsim netdevsim541 eni541np1: renamed from eth1
[  490.109743] Could not find device with ifindex 2000 in netnsfd 11
[  490.109962] Could not find netns with fd: 2000
[  490.110042] Cannot link a netdevsim to itself
[  490.110201] Format for linking two devices is "netnsfd_a:ifidx_a netnsfd_b:ifidx_b" (int uint int uint).