[  847.299997][T14750] netdevsim netdevsim394 eni394np1: renamed from eth0
[  847.336858][T14753] netdevsim netdevsim667 eni667np1: renamed from eth1
[  848.010151][T14738] Could not find device with ifindex 2000 in netnsfd 11
[  848.011059][T14738] Could not find netns with fd: 2000
[  848.011774][T14738] Cannot link a netdevsim to itself
[  848.012406][T14738] Format for linking two devices is "netnsfd_a:ifidx_a netnsfd_b:ifidx_b" (int uint int uint).