[   46.013074][  T580] netdevsim netdevsim708 eni708np1: renamed from eth1
[   46.035516][  T581] netdevsim netdevsim408 eni408np1: renamed from eth0
[   49.409589][  T573] Could not find device with ifindex 2000 in netnsfd 11
[   49.410309][  T573] Could not find netns with fd: 2000
[   49.410863][  T573] Cannot link a netdevsim to itself
[   49.411549][  T573] Format for linking two devices is "netnsfd_a:ifidx_a netnsfd_b:ifidx_b" (int uint int uint).