[  484.229641] netdevsim netdevsim697 eni697np1: renamed from eth1
[  484.330833] netdevsim netdevsim471 eni471np1: renamed from eth0
[  484.694703] Could not find device with ifindex 2000 in netnsfd 11
[  484.694891] Could not find netns with fd: 2000
[  484.694975] Cannot link a netdevsim to itself
[  484.695071] Format for linking two devices is "netnsfd_a:ifidx_a netnsfd_b:ifidx_b" (int uint int uint).