[  476.981627] netdevsim netdevsim534 eni534np1: renamed from eth1
[  477.083001] netdevsim netdevsim438 eni438np1: renamed from eth0
[  477.470855] Could not find device with ifindex 2000 in netnsfd 11
[  477.471017] Could not find netns with fd: 2000
[  477.471115] Cannot link a netdevsim to itself
[  477.471229] Format for linking two devices is "netnsfd_a:ifidx_a netnsfd_b:ifidx_b" (int uint int uint).