[  488.955150] netdevsim netdevsim686 eni686np1: renamed from eth1
[  489.051884] netdevsim netdevsim291 eni291np1: renamed from eth0
[  489.290253] Could not find device with ifindex 2000 in netnsfd 11
[  489.290522] Could not find netns with fd: 2000
[  489.290603] Cannot link a netdevsim to itself
[  489.290690] Format for linking two devices is "netnsfd_a:ifidx_a netnsfd_b:ifidx_b" (int uint int uint).