[  472.621236] netdevsim netdevsim403 eni403np1: renamed from eth0
[  472.621893] netdevsim netdevsim562 eni562np1: renamed from eth1
[  472.705203] Could not find device with ifindex 2000 in netnsfd 11
[  472.705338] Could not find netns with fd: 2000
[  472.705443] Cannot link a netdevsim to itself
[  472.705565] Format for linking two devices is "netnsfd_a:ifidx_a netnsfd_b:ifidx_b" (int uint int uint).