[  490.546760] netdevsim netdevsim527 eni527np1: renamed from eth1
[  490.642808] netdevsim netdevsim477 eni477np1: renamed from eth0
[  490.879357] Could not find device with ifindex 2000 in netnsfd 11
[  490.879849] Could not find netns with fd: 2000
[  490.879993] Cannot link a netdevsim to itself
[  490.880153] Format for linking two devices is "netnsfd_a:ifidx_a netnsfd_b:ifidx_b" (int uint int uint).