[  522.200262] netdevsim netdevsim377 eni377np1: renamed from eth0
[  522.298142] netdevsim netdevsim704 eni704np1: renamed from eth1
[  522.542942] Could not find device with ifindex 2000 in netnsfd 11
[  522.543110] Could not find netns with fd: 2000
[  522.543192] Cannot link a netdevsim to itself
[  522.543286] Format for linking two devices is "netnsfd_a:ifidx_a netnsfd_b:ifidx_b" (int uint int uint).