[  517.765340] netdevsim netdevsim406 eni406np1: renamed from eth0
[  517.862131] netdevsim netdevsim669 eni669np1: renamed from eth1
[  518.097958] Could not find device with ifindex 2000 in netnsfd 11
[  518.098157] Could not find netns with fd: 2000
[  518.098249] Cannot link a netdevsim to itself
[  518.098353] Format for linking two devices is "netnsfd_a:ifidx_a netnsfd_b:ifidx_b" (int uint int uint).