[  522.017537] netdevsim netdevsim508 eni508np1: renamed from eth0
[  522.113715] netdevsim netdevsim691 eni691np1: renamed from eth1
[  522.357540] Could not find device with ifindex 2000 in netnsfd 11
[  522.357710] Could not find netns with fd: 2000
[  522.357800] Cannot link a netdevsim to itself
[  522.357905] Format for linking two devices is "netnsfd_a:ifidx_a netnsfd_b:ifidx_b" (int uint int uint).