[  489.053749] netdevsim netdevsim393 eni393np1: renamed from eth0
[  489.151253] netdevsim netdevsim691 eni691np1: renamed from eth1
[  489.392366] Could not find device with ifindex 2000 in netnsfd 11
[  489.392537] Could not find netns with fd: 2000
[  489.392661] Cannot link a netdevsim to itself
[  489.392782] Format for linking two devices is "netnsfd_a:ifidx_a netnsfd_b:ifidx_b" (int uint int uint).