[  492.539099] netdevsim netdevsim642 eni642np1: renamed from eth1
[  492.635810] netdevsim netdevsim445 eni445np1: renamed from eth0
[  492.855830] Could not find device with ifindex 2000 in netnsfd 11
[  492.856234] Could not find netns with fd: 2000
[  492.856353] Cannot link a netdevsim to itself
[  492.856474] Format for linking two devices is "netnsfd_a:ifidx_a netnsfd_b:ifidx_b" (int uint int uint).