[  489.586680] netdevsim netdevsim478 eni478np1: renamed from eth0
[  489.683306] netdevsim netdevsim742 eni742np1: renamed from eth1
[  489.909425] Could not find device with ifindex 2000 in netnsfd 11
[  489.909757] Could not find netns with fd: 2000
[  489.909842] Cannot link a netdevsim to itself
[  489.909941] Format for linking two devices is "netnsfd_a:ifidx_a netnsfd_b:ifidx_b" (int uint int uint).