[  484.444748] netdevsim netdevsim468 eni468np1: renamed from eth0
[  484.445253] netdevsim netdevsim554 eni554np1: renamed from eth1
[  484.539224] Could not find device with ifindex 2000 in netnsfd 11
[  484.539316] Could not find netns with fd: 2000
[  484.539370] Cannot link a netdevsim to itself
[  484.539421] Format for linking two devices is "netnsfd_a:ifidx_a netnsfd_b:ifidx_b" (int uint int uint).