[  489.461212] netdevsim netdevsim716 eni716np1: renamed from eth1
[  489.557030] netdevsim netdevsim312 eni312np1: renamed from eth0
[  489.773319] Could not find device with ifindex 2000 in netnsfd 11
[  489.773668] Could not find netns with fd: 2000
[  489.773807] Cannot link a netdevsim to itself
[  489.773961] Format for linking two devices is "netnsfd_a:ifidx_a netnsfd_b:ifidx_b" (int uint int uint).