[  519.922810] netdevsim netdevsim574 eni574np1: renamed from eth1
[  520.018721] netdevsim netdevsim495 eni495np1: renamed from eth0
[  520.298154] Could not find device with ifindex 2000 in netnsfd 11
[  520.298390] Could not find netns with fd: 2000
[  520.298491] Cannot link a netdevsim to itself
[  520.298618] Format for linking two devices is "netnsfd_a:ifidx_a netnsfd_b:ifidx_b" (int uint int uint).