[  489.384607] netdevsim netdevsim273 eni273np1: renamed from eth0
[  489.480270] netdevsim netdevsim690 eni690np1: renamed from eth1
[  489.717473] Could not find device with ifindex 2000 in netnsfd 11
[  489.717869] Could not find netns with fd: 2000
[  489.718001] Cannot link a netdevsim to itself
[  489.718145] Format for linking two devices is "netnsfd_a:ifidx_a netnsfd_b:ifidx_b" (int uint int uint).