[  522.059650] netdevsim netdevsim395 eni395np1: renamed from eth0
[  522.156008] netdevsim netdevsim612 eni612np1: renamed from eth1
[  522.417899] Could not find device with ifindex 2000 in netnsfd 11
[  522.418058] Could not find netns with fd: 2000
[  522.418146] Cannot link a netdevsim to itself
[  522.418241] Format for linking two devices is "netnsfd_a:ifidx_a netnsfd_b:ifidx_b" (int uint int uint).