[  521.930701] netdevsim netdevsim269 eni269np1: renamed from eth0
[  522.026920] netdevsim netdevsim670 eni670np1: renamed from eth1
[  522.273680] Could not find device with ifindex 2000 in netnsfd 11
[  522.273910] Could not find netns with fd: 2000
[  522.274023] Cannot link a netdevsim to itself
[  522.274161] Format for linking two devices is "netnsfd_a:ifidx_a netnsfd_b:ifidx_b" (int uint int uint).