[  454.591396] netdevsim netdevsim436 eni436np1: renamed from eth0
[  454.593686] netdevsim netdevsim724 eni724np1: renamed from eth1
[  454.676656] Could not find device with ifindex 2000 in netnsfd 11
[  454.676808] Could not find netns with fd: 2000
[  454.676912] Cannot link a netdevsim to itself
[  454.677029] Format for linking two devices is "netnsfd_a:ifidx_a netnsfd_b:ifidx_b" (int uint int uint).