[  513.052747] netdevsim netdevsim612 eni612np1: renamed from eth1
[  513.150506] netdevsim netdevsim320 eni320np1: renamed from eth0
[  513.398090] Could not find device with ifindex 2000 in netnsfd 11
[  513.398269] Could not find netns with fd: 2000
[  513.398345] Cannot link a netdevsim to itself
[  513.398436] Format for linking two devices is "netnsfd_a:ifidx_a netnsfd_b:ifidx_b" (int uint int uint).