[  485.865860] netdevsim netdevsim690 eni690np1: renamed from eth1
[  485.966548] netdevsim netdevsim472 eni472np1: renamed from eth0
[  486.315348] Could not find device with ifindex 2000 in netnsfd 11
[  486.315514] Could not find netns with fd: 2000
[  486.315605] Cannot link a netdevsim to itself
[  486.315722] Format for linking two devices is "netnsfd_a:ifidx_a netnsfd_b:ifidx_b" (int uint int uint).