[  489.293212] netdevsim netdevsim401 eni401np1: renamed from eth0
[  489.394589] netdevsim netdevsim544 eni544np1: renamed from eth1
[  489.734727] Could not find device with ifindex 2000 in netnsfd 11
[  489.734877] Could not find netns with fd: 2000
[  489.734952] Cannot link a netdevsim to itself
[  489.735038] Format for linking two devices is "netnsfd_a:ifidx_a netnsfd_b:ifidx_b" (int uint int uint).