[  522.193041] netdevsim netdevsim576 eni576np1: renamed from eth1
[  522.290674] netdevsim netdevsim474 eni474np1: renamed from eth0
[  522.530375] Could not find device with ifindex 2000 in netnsfd 11
[  522.530552] Could not find netns with fd: 2000
[  522.530623] Cannot link a netdevsim to itself
[  522.530710] Format for linking two devices is "netnsfd_a:ifidx_a netnsfd_b:ifidx_b" (int uint int uint).