[  478.862469] netdevsim netdevsim427 eni427np1: renamed from eth0
[  478.863556] netdevsim netdevsim534 eni534np1: renamed from eth1
[  478.947039] Could not find device with ifindex 2000 in netnsfd 11
[  478.947142] Could not find netns with fd: 2000
[  478.947196] Cannot link a netdevsim to itself
[  478.947256] Format for linking two devices is "netnsfd_a:ifidx_a netnsfd_b:ifidx_b" (int uint int uint).