[  474.916568] netdevsim netdevsim522 eni522np1: renamed from eth1
[  474.917017] netdevsim netdevsim492 eni492np1: renamed from eth0
[  475.009751] Could not find device with ifindex 2000 in netnsfd 11
[  475.009862] Could not find netns with fd: 2000
[  475.009917] Cannot link a netdevsim to itself
[  475.010002] Format for linking two devices is "netnsfd_a:ifidx_a netnsfd_b:ifidx_b" (int uint int uint).