[  544.084741] netdevsim netdevsim478 eni478np1: renamed from eth0
[  544.180955] netdevsim netdevsim756 eni756np1: renamed from eth1
[  544.431678] Could not find device with ifindex 2000 in netnsfd 11
[  544.431855] Could not find netns with fd: 2000
[  544.431931] Cannot link a netdevsim to itself
[  544.432019] Format for linking two devices is "netnsfd_a:ifidx_a netnsfd_b:ifidx_b" (int uint int uint).