[  478.842400] netdevsim netdevsim574 eni574np1: renamed from eth1
[  478.944017] netdevsim netdevsim500 eni500np1: renamed from eth0
[  479.309639] Could not find device with ifindex 2000 in netnsfd 11
[  479.309796] Could not find netns with fd: 2000
[  479.309885] Cannot link a netdevsim to itself
[  479.309987] Format for linking two devices is "netnsfd_a:ifidx_a netnsfd_b:ifidx_b" (int uint int uint).