[  474.431287] netdevsim netdevsim395 eni395np1: renamed from eth0
[  474.432164] netdevsim netdevsim668 eni668np1: renamed from eth1
[  474.511789] Could not find device with ifindex 2000 in netnsfd 11
[  474.511887] Could not find netns with fd: 2000
[  474.511938] Cannot link a netdevsim to itself
[  474.512002] Format for linking two devices is "netnsfd_a:ifidx_a netnsfd_b:ifidx_b" (int uint int uint).