[  489.289131] netdevsim netdevsim739 eni739np1: renamed from eth1
[  489.384671] netdevsim netdevsim455 eni455np1: renamed from eth0
[  489.621758] Could not find device with ifindex 2000 in netnsfd 11
[  489.622016] Could not find netns with fd: 2000
[  489.622096] Cannot link a netdevsim to itself
[  489.622189] Format for linking two devices is "netnsfd_a:ifidx_a netnsfd_b:ifidx_b" (int uint int uint).