[  489.351179] netdevsim netdevsim492 eni492np1: renamed from eth0
[  489.447955] netdevsim netdevsim664 eni664np1: renamed from eth1
[  489.699096] Could not find device with ifindex 2000 in netnsfd 11
[  489.699396] Could not find netns with fd: 2000
[  489.699515] Cannot link a netdevsim to itself
[  489.699638] Format for linking two devices is "netnsfd_a:ifidx_a netnsfd_b:ifidx_b" (int uint int uint).