[  478.791247] netdevsim netdevsim632 eni632np1: renamed from eth1
[  478.891286] netdevsim netdevsim509 eni509np1: renamed from eth0
[  479.247477] Could not find device with ifindex 2000 in netnsfd 11
[  479.247631] Could not find netns with fd: 2000
[  479.247732] Cannot link a netdevsim to itself
[  479.247826] Format for linking two devices is "netnsfd_a:ifidx_a netnsfd_b:ifidx_b" (int uint int uint).