[  521.878572] netdevsim netdevsim652 eni652np1: renamed from eth1
[  521.975413] netdevsim netdevsim448 eni448np1: renamed from eth0
[  522.220437] Could not find device with ifindex 2000 in netnsfd 11
[  522.220626] Could not find netns with fd: 2000
[  522.220718] Cannot link a netdevsim to itself
[  522.220832] Format for linking two devices is "netnsfd_a:ifidx_a netnsfd_b:ifidx_b" (int uint int uint).